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Metformin hydrochloride 500 mg Tablet, Extended Release, 30-count — NDC 68071-1419-03 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

Metformin hydrochloride 500 mg Tablet, Extended Release, 30-count — NDC 68071-1419-3 (Billing 68071-1419-03)

by NuCare Pharmaceuticals, Inc. · 30 TABLET, EXTENDED RELEASE in 1 BOTTLE

This is a package of 30 tablets of Metformin hydrochloride 500 mg Tablet, Extended Release from NuCare Pharmaceuticals, Inc., marketed since Mar 2013 and currently FDA-listed.

NDC 68071-1419-03
🏷️ FDA NDC (as labeled) 68071-1419-3 billing pads the package segment with a zero
This package
Contains30-count Pack sizes5 compare ↓
Also priced by: Part D plans $1.53/unit — full pricing hub ↓
Product page 68071-1419-02 Also comes in: 20 tablets 68071-1419-2 60 tablets 68071-1419-6 90 tablets 68071-1419-9 180 tablets 68071-1419-8
Rx only Generic On market Non-controlled ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 1, 2026 · this listing last changed Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

NDC database record

One package, one record: these facts belong to NDC 68071-1419-3 alone.

Record
FDA NDC Directory package listing · Human prescription drug
Code segments
68071 labeler · 1419 product · 3 package
Package marketed since
Mar 29, 2017
Sample package
No — commercial package
Listing certified through
Dec 31, 2026
Barcode (UPC)
0368071141986
FDA record last changed
Jul 24, 2026
⚠️
Other active recalls for Metformin Hydrochloride (different manufacturers) — 2 · tap to view
These affect other manufacturers’ products for the same ingredient — not necessarily the exact NDC on this page.
Class II · Mar 13, 2025 — CGMP Deviations (Glenmark Pharmaceuticals Inc., USA) · FDA recall D-0328-2025
Class II · Feb 25, 2025 — Presence of Foreign Tablets/Capsules. (A-S Medication Solutions LLC) · FDA recall D-0292-2025
Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 68071-1419-3
Product NDC 68071-1419
11-digit billing NDC 68071141903
RxCUI 1807917
UNII 786Z46389E
UPC 0368071141986
Application # ANDA201991
SPL Set ID 4be72741-4f6d-6689-e054-00144ff8d46c
Established class (EPC) Biguanide
Chemical class Biguanides
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2013-03-01
Route ORAL
Dosage form TABLET, EXTENDED RELEASE
Substance METFORMIN HYDROCHLORIDE
TE code (Orange Book) AB1 · RLD · RS
Quick answers
  • RxCUI (RxNorm): 1807917
Why two NDCs? The FDA registers this code as 68071-1419-3 — a 5-4-1 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the package segment → 68071-1419-03. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

RxNorm drug class

This medicine belongs to the Biguanide class.

Pharmacologic class Biguanide
Drug family (ATC) Biguanides
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

Clinical

📗 Our plain-language guide HelloPharmacist
  • Metformin works in three ways: it lowers the amount of sugar your liver dumps into your bloodstream, slows how much sugar your gut absorbs from food, and helps your body respond to...
  • What exactly is metformin doing for my diabetes?
  • Yes, this is very common — diarrhea, nausea, and stomach discomfort are the most frequently reported side effects, and they're often worst when you first start or when your dose go...
  • My stomach has been a mess since I started metformin. Is that normal? Will it get better?
📖 Read our full Metformin guide →
4
Nutrient depletion considerations

Metformin Hydrochloride may be associated with lower levels of 4 nutrients — worth a chat with your pharmacist, not a cause for alarm.

🧪 Full Metformin Hydrochloride nutrient depletion report →
An association is not a deficiency. Educational only — don't start or stop anything without professional guidance.
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer eachPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · Q2 2026 $1.53 $45.86 / 30 tablets
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
68071-1419-02 68071-1419-2 Main listing 20 TABLET, EXTENDED RELEASE in 1 BOTTLE 2017-03-29 — Active
68071-1419-03 You're viewing this 30 TABLET, EXTENDED RELEASE in 1 BOTTLE 2017-03-29 — Active
68071-1419-06 68071-1419-6 60 TABLET, EXTENDED RELEASE in 1 BOTTLE 2017-03-29 — Active
68071-1419-08 68071-1419-8 180 TABLET, EXTENDED RELEASE in 1 BOTTLE 2017-03-29 — Active
68071-1419-09 68071-1419-9 90 TABLET, EXTENDED RELEASE in 1 BOTTLE 2017-03-29 — Active

You're viewing one of 5 pack sizes for this product.

Pack size FAQ

What quantity is in this package?
This is a 30-count package — 30 tablet, extended release in 1 bottle.
How does this package differ from NDC 68071-1419-02?
Both are Metformin hydrochloride 500 mg Tablet, Extended Release — the drug itself is identical. This page's package is the 30-count one, while NDC 68071-1419-02 is the 20 tablets package.
What NDC number is used to bill for this package of Metformin hydrochloride 500 mg Tablet, Extended Release?
Use the 11-digit billing form listed in the identifiers section of this page. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Metformin Hydrochloride 500 mg 42806-0632-01 Epic 100 tablets $0.028 AB1 Availability likely —
Metformin Hydrochloride 500 mg 67877-0159-01 Ascend 100 tablets $0.028 AB1 Availability likely —
Metformin Hydrochloride Er 500 mg 69315-0410-01 Leading 100 tablets $0.028 AB1 Availability likely —
Metformin Hydrochloride Extended Release 500 mg 49483-0623-01 TIME 100 tablets $0.028 AB1 Availability likely —
Metformin Hydrochloride 500 mg 42385-0977-01 Laurus 100 tablets $0.028 AB1 Availability likely —
Metformin Hydrochloride 500 mg 50268-0550-15 AvPAK 1 tablet $0.028 AB1 Availability likely —
Metformin Hydrochloride 500 mg 67877-0413-01 Ascend 100 tablets $0.028 AB1 Availability likely —
Metformin Hydrochloride 500 mg 68094-0904-50 Precision 100 tablets $0.028 AB1 Availability likely —
Metformin Hydrochloride 500 mg 82009-0180-05 Quallent 500 tablets $0.028 AB1 Availability likely —
Metformin Hydrochloride 500 mg 29300-0389-01 Unichem 100 tablets $0.028 AB1 Availability likely —
Metformin Hydrochloride 500 mg 62756-0142-01 Sun 100 tablets $0.029 — FDA listed —
Metformin hydrochloride 500 mg 33342-0239-11 Macleods 100 tablets $0.031 AB1 FDA listed —
Metformin Hydrochloride 500 mg 51224-0007-50 TAGI 100 tablets $0.031 AB1 FDA listed —
metformin hydrochloride 500 mg 42806-0405-60 EPIC 60 tablets $0.138 AB2 Availability likely —
Metformin Hydrochloride 500 mg 00378-6002-91 Mylan 60 tablets $0.164 AB2 Availability likely —
Metformin Hydrochloride 500 mg 11788-0037-60 AiPing 60 tablets $0.164 AB2 Availability likely —
Metformin hydrochloride 500 mg 27241-0188-60 Ajanta 60 tablets $0.164 AB2 Availability likely —
Metformin Hydrochloride 500 mg 59651-0042-60 Aurobindo 60 tablets $0.164 AB2 Availability likely —
Metformin Hydrochloride 500 mg 69367-0412-60 Westminster 60 tablets $0.164 AB2 Availability likely —
Metformin Hydrochloride 500 mg 42571-0333-01 Micro 100 tablets $0.271 AB3 Availability likely —
Metformin Hydrochloride 500 mg 68180-0338-01 Lupin 100 tablets $0.271 AB3 Availability likely —
Metformin Hydrochloride 500 mg 70010-0496-01 Granules 100 tablets $0.271 AB3 Availability likely —
Metformin hydrochloride 500 mg 27241-0240-01 Ajanta 100 tablets $0.271 AB3 Availability likely —
Metformin Hydrochloride 500 mg 68462-0520-01 GLENMARK 100 tablets $0.271 AB3 Availability likely —
Metformin hydrochloride 500 mg 68682-0021-50 Oceanside 100 tablets $0.402 — FDA listed —
Glumetza 500 mg 68012-0004-50 Santarus, 100 tablets $49.542 — FDA listed —
Metformin Hydrochloride 500 mg 50228-0503-05 ScieGen 500 tablets — AB2 FDA listed —
Metformin 500 mg 50742-0633-10 Ingenus 1000 tablets — AB2 FDA listed —
Metformin 500 mg 67046-1557-03 Coupler 30 tablets — AB2 FDA listed —
Metformin hydrochloride 500 mgthis 68071-1419-03 NuCare 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 68180-0336-01 Lupin 100 tablets — AB2 FDA listed —
Metformin Hydrochloride 500 mg 70247-0019-60 Qingdao 60 tablets — AB2 FDA listed —
Metformin Hydrochloride 500 mg 43547-0503-10 Solco 100 tablets — AB3 FDA listed —
Metformin Hydrochloride 500 mg 71205-0186-20 Proficient 20 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71205-0686-30 Proficient 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71610-0447-30 Aphena 30 tablets — — FDA listed —
Metformin Hydrochloride Extended Release 500 mg 71610-0454-30 Aphena 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71610-0533-30 Aphena 30 tablets — AB1 FDA listed —
Metformin hydrochloride 500 mg 71610-0554-30 Aphena 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71610-0578-60 Aphena 90 tablets — AB1 FDA listed —
Metformin hydrochloride 500 mg 71610-0587-30 Aphena 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71610-0652-30 Aphena 30 tablets — — FDA listed —
Metformin Hydrochloride Extended-Release 500mg 500 mg 17224-0311-28 Calvin 28 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 47335-0305-18 Sun 1000 tablets — — Discontinued —
Metformin Hydrochloride 500 mg 50090-5396-00 A-S 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 50090-5397-00 A-S 90 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71335-9683-01 Bryant 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 72664-0227-01 VGYAAN 100 tablets — — FDA listed —
Metformin Hydrochloride 500 mg 00615-8289-39 NCS 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 51655-0559-25 Northwind 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 51655-0853-25 Northwind 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 65841-0027-01 Zydus 100 tablets — AB1 Discontinued —
Metformin Hydrochloride 500 mg 82804-0195-60 Proficient 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 10135-0823-05 Marlex 500 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 50090-7918-00 A-S 90 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 65162-0178-03 Amneal 30 tablets — — FDA listed —
Glumetza 500 mg 68012-0002-13 Santarus, 100 tablets — — FDA listed —
Metformin Hydrochloride Extended Release 500 mg 68071-3111-02 NuCare 120 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71610-0837-30 Aphena 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 72578-0035-01 Viona 100 tablets — AB1 FDA listed —
Metformin hydrochloride 500 mg 72789-0105-01 PD-Rx 100 tablets — AB1 FDA listed —
Metformin hydrochloride 500 mg 76385-0128-01 UNICHEM 100 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 67296-1701-06 RedPharm 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 69238-2125-01 Amneal 100 tablets — — FDA listed —
Metformin Hydrochloride 500 mg 72789-0455-30 PD-Rx 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71335-0886-01 Bryant 60 tablets — AB1 FDA listed —
Metformin hydrochloride 500 mg 71610-0858-30 Aphena 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 72789-0400-01 PD-Rx 100 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 50090-7579-00 A-S 90 tablets — AB1 FDA listed —
Metformin hydrochloride 500 mg 63187-0779-00 Proficient 100 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 25000-0101-03 MARKSANS 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 50090-7576-00 A-S 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 59651-0548-25 Aurobindo 25000 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 62207-0496-47 Granules 500 tablets — AB3 FDA listed —
Metformin Hydrochloride 500 mg 68788-8814-01 Preferred 100 tablets — AB1 FDA listed —
Metformin hydrochloride 500 mg 42291-0825-10 AvKARE 1000 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 50090-1494-00 A-S 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 50090-7116-00 A-S 90 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 68788-8866-01 Preferred 100 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 68788-8903-01 Preferred 100 tablets — AB1 FDA listed —
Metformin Hydrochloride Extended Release 500 mg 72189-0064-30 direct 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 72789-0454-60 PD-Rx 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 50090-7577-00 A-S 90 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71335-2568-01 Bryant 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 42708-0201-60 QPharma 60 tablets — AB1 FDA listed —
Metformin Hydrochloride Extended Release 500 mg 51655-0555-96 Northwind 180 tablets — AB1 FDA listed —
Metformin Hydrochloride Extended Release 500 mg 71335-0293-01 Bryant 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71335-0720-01 Bryant 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 72189-0150-30 direct 30 tablets — AB1 FDA listed —
Metformin Hydrochloride Extended Release 500 mg 72789-0009-30 PD-Rx 30 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 71335-3166-01 Bryant 60 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 67296-2305-09 Redpharm 90 tablets — AB1 FDA listed —
Metformin Hydrochloride 500 mg 70518-4639-00 REMEDYREPACK 1 tablet — AB1 FDA listed —
About this product: this is a generic version of the medicine. FDA equivalence ratings are shown when available, and other versions are listed above, least expensive first.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & generic status

🏛️
2013
On the market since
Mar 2013
📍
2026
Currently FDA-listed
13 years listed
🔓
·
Generic on the market
this product is a generic
✅This is a generic drug

This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.

Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

What it looks like

Color white
ShapeCapsule
Imprint001
Size18 mm
ScoringNot scored
One label can cover several strengths, so colors may be combined — always confirm a loose pill against the dispensed prescription label or a pharmacist.
Where does this data come from?
Physical description (imprint, shape, color, scoring, coating) from this product’s FDA Structured Product Labeling (SPL), mirrored from DailyMed / openFDA.

Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

🧪 Avoiding an ingredient? See Metformin inactive ingredients by manufacturer: every current product's list side by side, so you can ask your pharmacy for the version that does not list it.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII K679OBS311
    Carboxymethylcellulose sodium is a plant-derived thickening agent made from cellulose. In medicines, it acts as a binder to hold ingredients together, a disintegrant to help the tablet break apart, or a thickener in liquids.
  • UNII 3NXW29V3WO
    Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
  • UNII 70097M6I30
    Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.

3 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

Manufacturer & labeler

LabelerNuCare Pharmaceuticals, Inc.
Application holderINVENTIA HEALTHCARE LTD
FDA applicationANDA201991 (ANDA)
Labeler code68071
First marketedMar 2013
Product typeHuman Prescription Drug
Portfolio365 products on file

More NDCs from NuCare Pharmaceuticals, Inc. labeler code 68071

The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Very long sections are excerpted here and marked; the full text is on DailyMed (linked in the sources below). Jump with a chip, search within the label, or expand everything.
🚨 Boxed Warning 🎯 Indications and Usage ⏱️ Dosage and Administration ⛔ Contraindications ⚠️ Warnings 🤒 Adverse Reactions 🔄 Drug Interactions 🤰 Pregnancy 🧒 Pediatric Use 🧓 Geriatric Use 🆘 Overdosage 🧬 Clinical Pharmacology 🧬 Mechanism of Action 📦 How Supplied / Storage and Handling 📋 Description 💬 Information for Patients ⚠️ Precautions 🍼 Nursing Mothers 🧬 Pharmacokinetics 🔬 Clinical Studies 📄 Carcinogenesis, Mutagenesis, Impairment of Fertility 📄 Patient Package Insert 📄 Package Label / Principal Display Panel
🚨 Boxed Warning ~3 min read ▾

Lactic Acidosis: Lactic acidosis is a rare, but serious, metabolic complication that can occur due to metformin accumulation during treatment with metformin hydrochloride extended release tablets USP when it occurs, it is fatal in approximately 50% of cases. Lactic acidosis may also occur in association with a number of pathophysiologic conditions, including diabetes mellitus, and whenever there is significant tissue hypoperfusion and hypoxemia. Lactic acidosis is characterized by elevated blood lactate levels (>5 mmol/L), decreased blood pH, electrolyte disturbances with an increased anion gap, and an increased lactate/pyruvate ratio.

When metformin is implicated as the cause of lactic acidosis, metformin plasma levels >5 μg/mL are generally found. The reported incidence of lactic acidosis in patients receiving metformin hydrochloride is very low (approximately 0.03 cases/1000 patient-years, with approximately 0.015 fatal cases/1000 patient-years). In more than 20,000 patient-years exposure to metformin in clinical trials, there were no reports of lactic acidosis.

Reported cases have occurred primarily in diabetic patients with significant renal insufficiency, including both intrinsic renal disease and renal hypoperfusion, often in the setting of multiple concomitant medical/surgical problems and multiple concomitant medications. Patients with congestive heart failure requiring pharmacologic management, in particular those with unstable or acute congestive heart failure who are at risk of hypoperfusion and hypoxemia, are at increased risk of lactic acidosis. The risk of lactic acidosis increases with the degree of renal dysfunction and the patient's age.

The risk of lactic acidosis may, therefore, be significantly decreased by regular monitoring of renal function in patients taking metformin hydrochloride extended release tablets USP and by use of the minimum effective dose of metformin hydrochloride extended release tablets USP. In particular, treatment of the elderly should be accompanied by careful monitoring of renal function. Metformin hydrochloride extended release tablets USP treatment should not be initiated in patients ≥80 years of age unless measurement of creatinine clearance demonstrates that renal function is not reduced, as these patients are more susceptible to developing lactic acidosis.

In addition, metformin hydrochloride should be promptly withheld in the presence of any condition associated with hypoxemia, dehydration, or sepsis. Because impaired hepatic function may significantly limit the ability to clear lactate, metformin hydrochloride should generally be avoided in patients with clinical or laboratory evidence of hepatic disease. Patients should be cautioned against excessive alcohol intake, either acute or chronic, when taking metformin hydrochloride extended release tablets USP, since alcohol potentiates the effects of metformin hydrochloride on lactate metabolism.

In addition, metformin hydrochloride should be temporarily discontinued prior to any intravascular radiocontrast study and for any surgical procedure (see also PRECAUTIONS ). The onset of lactic acidosis often is subtle, and accompanied only by nonspecific symptoms such as malaise, myalgias, respiratory distress, increasing somnolence, and nonspecific abdominal distress. There may be associated hypothermia, hypotension, and resistant bradyarrhythmias with more marked acidosis.

The patient and the patient's physician must be aware of the possible importance of such symptoms and the patient should be instructed to notify the physician immediately if they occur (see also PRECAUTIONS ). Metformin hydrochloride should be withdrawn until the situation is clarified. Serum electrolytes, ketones, blood glucose, and if indicated, blood pH, lactate levels, and even blood metformin levels may be useful.

Once a patient is stabilized on any dose level of metformin hydrochloride extended release tablets USP, gastrointestinal symptoms, which are common d… [Excerpted — this section continues on DailyMed.]

🎯 Indications and Usage 29 words ▾

INDICATIONS AND USAGE Metformin hydrochloride extended release tablets USP are indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus.

⏱️ Dosage and Administration ~2 min read ▾

DOSAGE AND ADMINISTRATION There is no fixed dosage regimen for the management of hyperglycemia in patients with type 2 diabetes with metformin hydrochloride extended release tablets USP or any other pharmacologic agent. Dosage of metformin hydrochloride extended release tablets USP must be individualized on the basis of both effectiveness and tolerance, while not exceeding the maximum recommended daily doses. The maximum recommended daily dose of metformin hydrochloride extended release tablets USP in adults is 2000 mg.

Metformin hydrochloride extended release tablets USP should generally be given once daily with the evening meal. Metformin hydrochloride extended release tablets USP should be started at a low dose, with gradual dose escalation, both to reduce gastrointestinal side effects and to permit identification of the minimum dose required for adequate glycemic control of the patient. During treatment initiation and dose titration (see Recommended Dosing Schedule ), fasting plasma glucose should be used to determine the therapeutic response to metformin hydrochloride extended release tablets USP and identify the minimum effective dose for the patient.

Thereafter, glycosylated hemoglobin should be measured at intervals of approximately three months. The therapeutic goal should be to decrease both fasting plasma glucose and glycosylated hemoglobin levels to normal or near normal by using the lowest effective dose of metformin hydrochloride extended release tablets USP, either when used as monotherapy or in combination with sulfonylurea or insulin. Monitoring of blood glucose and glycosylated hemoglobin will also permit detection of primary failure, i.e., inadequate lowering of blood glucose at the maximum recommended dose of medication, and secondary failure, i.e., loss of an adequate blood glucose lowering response after an initial period of effectiveness.

Short-term administration of metformin hydrochloride extended release tablets USP may be sufficient during periods of transient loss of control in patients usually well-controlled on diet alone. Metformin hydrochloride extended release tablets USP must be swallowed whole and never crushed or chewed. Occasionally, the inactive ingredients of metformin hydrochloride extended release tablets USP will be eliminated in the feces as a soft, hydrated mass.

(See Patient Information printed below.)

⛔ Contraindications 110 words ▾

CONTRAINDICATIONS Metformin hydrochloride are contraindicated in patients with: Renal disease or renal dysfunction (e.g., as suggested by serum creatinine levels ≥1.5 mg/dL [males], ≥1.4 mg/dL [females] or abnormal creatinine clearance) which may also result from conditions such as cardiovascular collapse (shock), acute myocardial infarction, and septicemia (see WARNINGS and PRECAUTIONS ). Known hypersensitivity to metformin hydrochloride. Acute or chronic metabolic acidosis, including diabetic ketoacidosis, with or without coma.

Diabetic ketoacidosis should be treated with insulin. Metformin hydrochloride should be temporarily discontinued in patients undergoing radiologic studies involving intravascular administration of iodinated contrast materials, because use of such products may result in acute alteration of renal function. (See also PRECAUTIONS. )

⚠️ Warnings 1 words ▾

WARNINGS

🤒 Adverse Reactions 212 words ▾

ADVERSE REACTIONS In worldwide clinical trials over 900 patients with type 2 diabetes have been treated with metformin hydrochloride extended release tablets USP in placebo- and active-controlled studies. In placebo-controlled trials, 781 patients were administered metformin hydrochloride extended release tablets USP and 195 patients received placebo. Adverse reactions reported in greater than 5% of the metformin hydrochloride extended release tablets USP patients, and that were more common in metformin hydrochloride extended release tablets USP - than placebo-treated patients, are listed in Table 12.

Table 12: Most Common Adverse Reactions (>5.0 Percent) in Placebo-Controlled Studies of Metformin Hydrochloride Extended Release Tablets USP* Metformin Hydrochloride Extended Release Tablets USP ( n = 781 ) Placebo ( n = 195 ) Adverse Reaction % of Patients Diarrhea 9.6

2.6Nausea/Vomiting 6.5 1.5 * Reactions that were more common in metformin hydrochloride extended release tablets USP - than placebo-treated patients. Diarrhea led to discontinuation of study medication in 0.6% of patients treated with metformin hydrochloride extended release tablets USP. Additionally, the following adverse reactions were reported in ≥1.0% - ≤5.0% of metformin hydrochloride extended release tablets USP patients and were more commonly reported with metformin hydrochloride extended release tablets USP than placebo: abdominal pain, constipation, distention abdomen, dyspepsia/heartburn, flatulence, dizziness, headache, upper respiratory infection, taste disturbance.

🔄 Drug Interactions ~3 min read ▾

Drug Interactions (Clinical Evaluation of Drug Interactions Conducted with Metformin Hydrochloride Tablets) Glyburide - In a single-dose interaction study in type 2 diabetes patients, coadministration of metformin and glyburide did not result in any changes in either metformin pharmacokinetics or pharmacodynamics. Decreases in glyburide AUC and C max were observed, but were highly variable. The single-dose nature of this study and the lack of correlation between glyburide blood levels and pharmacodynamic effects, makes the clinical significance of this interaction uncertain (see DOSAGE AND ADMINISTRATION: Concomitant Metformin Hydrochloride Extended Release Tablets USP and Oral Sulfonylurea Therapy in Adult Patients ).

Furosemide - A single-dose, metformin-furosemide drug interaction study in healthy subjects demonstrated that pharmacokinetic parameters of both compounds were affected by coadministration. Furosemide increased the metformin plasma and blood C max by 22% and blood AUC by 15%, without any significant change in metformin renal clearance. When administered with metformin, the C max and AUC of furosemide were 31% and 12% smaller, respectively, than when administered alone, and the terminal half-life was decreased by 32%, without any significant change in furosemide renal clearance.

No information is available about the interaction of metformin and furosemide when coadministered chronically. Nifedipine - A single-dose, metformin-nifedipine drug interaction study in normal healthy volunteers demonstrated that coadministration of nifedipine increased plasma metformin C max and AUC by 20% and 9%, respectively, and increased the amount excreted in the urine. T max and half-life were unaffected.

Nifedipine appears to enhance the absorption of metformin. Metformin had minimal effects on nifedipine. Cationic drugs - Cationic drugs (e.g., amiloride, digoxin, morphine, procainamide, quinidine, quinine, ranitidine, triamterene, trimethoprim, or vancomycin) that are eliminated by renal tubular secretion theoretically have the potential for interaction with metformin by competing for common renal tubular transport systems.

Such interaction between metformin and oral cimetidine has been observed in normal healthy volunteers in both single- and multiple-dose, metformin-cimetidine drug interaction studies, with a 60% increase in peak metformin plasma and whole blood concentrations and a 40% increase in plasma and whole blood metformin AUC. There was no change in elimination half-life in the single-dose study. Metformin had no effect on cimetidine pharmacokinetics.

Although such interactions remain theoretical (except for cimetidine), careful patient monitoring and dose adjustment of metformin hydrochloride extended release tablets USP and/or the interfering drug is recommended in patients who are taking cationic medications that are excreted via the proximal renal tubular secretory system. Other - Certain drugs tend to produce hyperglycemia and may lead to loss of glycemic control. These drugs include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid.

When such drugs are administered to a patient receiving metformin hydrochloride extended release tablets USP, the patient should be closely observed for loss of blood glucose control. When such drugs are withdrawn from a patient receiving metformin hydrochloride extended release tablets USP, the patient should be observed closely for hypoglycemia. In healthy volunteers, the pharmacokinetics of metformin and propranolol, and metformin and ibuprofen were not affected when coadministered in single-dose interaction studies.

Metformin is negligibly bound to plasma proteins and is, therefore, less likely to interact with highly protein-bound drugs such as salicylates, sulfonamides, chloramphenicol, and probenecid, as compared to the s… [Excerpted — this section continues on DailyMed.]

🤰 Pregnancy 140 words ▾

Pregnancy Teratogenic Effects: Pregnancy Category B Recent information strongly suggests that abnormal blood glucose levels during pregnancy are associated with a higher incidence of congenital abnormalities. Most experts recommend that insulin be used during pregnancy to maintain blood glucose levels as close to normal as possible. Because animal reproduction studies are not always predictive of human response, metformin hydrochloride should not be used during pregnancy unless clearly needed.

There are no adequate and well-controlled studies in pregnant women with metformin hydrochloride extended release tablets USP. Metformin was not teratogenic in rats and rabbits at doses up to 600 mg/kg/day. This represents an exposure of about two and six times the maximum recommended human daily dose of 2000 mg based on body surface area comparisons for rats and rabbits, respectively.

Determination of fetal concentrations demonstrated a partial placental barrier to metformin.

🧒 Pediatric Use 19 words ▾

Pediatric Use Safety and effectiveness of metformin hydrochloride extended release tablets USP in pediatric patients have not been established.

🧓 Geriatric Use 159 words ▾

Geriatric Use Controlled clinical studies of metformin hydrochloride did not include sufficient numbers of elderly patients to determine whether they respond differently from younger patients, although other reported clinical experience has not identified differences in responses between the elderly and younger patients. Metformin is known to be substantially excreted by the kidney and because the risk of serious adverse reactions to the drug is greater in patients with impaired renal function, metformin hydrochloride should only be used in patients with normal renal function (see CONTRAINDICATIONS, WARNINGS , and CLINICAL PHARMACOLOGY: Pharmacokinetics ).

Because aging is associated with reduced renal function, metformin hydrochloride extended release tablets USP should be used with caution as age increases. Care should be taken in dose selection and should be based on careful and regular monitoring of renal function. Generally, elderly patients should not be titrated to the maximum dose of metformin hydrochloride extended release tablets USP (see also WARNINGS and DOSAGE AND ADMINISTRATION ).

🆘 Overdosage 81 words ▾

OVERDOSAGE Overdose of metformin hydrochloride has occurred, including ingestion of amounts greater than 50 grams. Hypoglycemia was reported in approximately 10% of cases, but no causal association with metformin hydrochloride has been established. Lactic acidosis has been reported in approximately 32% of metformin overdose cases (see WARNINGS ).

Metformin is dialyzable with a clearance of up to 170 mL/min under good hemodynamic conditions. Therefore, hemodialysis may be useful for removal of accumulated drug from patients in whom metformin overdosage is suspected.

🧬 Clinical Pharmacology 2 words ▾

CLINICAL PHARMACOLOGY

🧬 Mechanism of Action 108 words ▾

Mechanism of Action Metformin is an antihyperglycemic agent which improves glucose tolerance in patients with type 2 diabetes, lowering both basal and postprandial plasma glucose. Its pharmacologic mechanisms of action are different from other classes of oral antihyperglycemic agents. Metformin decreases hepatic glucose production, decreases intestinal absorption of glucose, and improves insulin sensitivity by increasing peripheral glucose uptake and utilization.

Unlike sulfonylureas, metformin does not produce hypoglycemia in either patients with type 2 diabetes or normal subjects (except in special circumstances, see PRECAUTIONS ) and does not cause hyperinsulinemia. With metformin therapy, insulin secretion remains unchanged while fasting insulin levels and day-long plasma insulin response may actually decrease.

📦 How Supplied / Storage and Handling 128 words ▾

HOW SUPPLIED Metformin Hydrochloride Extended Release Tablets USP Bottles of 20 NDC 68071-1419-2 Bottles of 30 NDC 68071-1419-3 Bottles of 60 NDC 68071-1419-6 Bottles of 90 NDC 68071-1419-9 Bottles of 180 NDC 68071-1419-8 Metformin hydrochloride extended release tablets USP 500 mg are white to off-white, capsule shaped, biconvex, beveled edge tablet, with occasionally mottled appearance, debossed with " ˥L 001" on one side and plain on other side. Storage Store at 20° to 25° C (68° to 77° F); excursions permitted to 15° to 30° C (59° to 86° F).

(See USP Controlled Room Temperature.) Dispense in light-resistant containers. Manufactured By: Inventia Healthcare Private Limited Plot No.F1 & F-1/1, Additional Ambernath M.I.D.C., Ambernath (East)-421506, Dist. Thane, Maharashtra, India Distributed by: Ascend Laboratories, LLC Montvale, NJ 07645 PT 1977

📋 Description ~1 min read ▾

DESCRIPTION Metformin hydrochloride extended release tablets USP is an oral antihyperglycemic drug used in the management of type 2 diabetes. Metformin hydrochloride ( N,N -dimethylimidodicar- bonimidic diamide hydrochloride) is not chemically or pharmacologically related to any other classes of oral antihyperglycemic agents. The structural formula is as shown: Metformin hydrochloride is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 • HCl and a molecular weight of 165.63.

Metformin hydrochloride is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pK a of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68.

Metformin hydrochloride extended release tablets USP contain 500 mg of metformin hydrochloride USP as the active ingredient. Metformin hydrochloride extended release tablets USP 500 mg contain the inactive ingredients sodium carboxymethyl cellulose, hypromellose and magnesium stearate. Metformin hydrochloride extended release tablets USP 500 mg meets USP dissolution Test 3.

System Components and Performance- Metformin hydrochloride extended release tablets USP comprises a swellable matrix system. In the aqueous gastrointestinal (GI) environment, the dosage form swells remarkably thereby increasing in size and geometry from where drug is released slowly by a process of diffusion through the gel matrix that is essentially independent of pH. The hydrated polymer system is not rigid and is expected to be broken up by normal peristalsis in the GI tract.

The biologically inert components of the tablet may occasionally remain intact during GI transit and will be eliminated in the feces as a soft, hydrated mass. Structural Formula

💬 Information for Patients ~1 min read ▾

Information for Patients Patients should be informed of the potential risks and benefits of metformin hydrochloride extended release tablets USP and of alternative modes of therapy. They should also be informed about the importance of adherence to dietary instructions, of a regular exercise program, and of regular testing of blood glucose, glycosylated hemoglobin, renal function, and hematologic parameters. The risks of lactic acidosis, its symptoms, and conditions that predispose to its development, as noted in the WARNINGS and PRECAUTIONS sections, should be explained to patients.

Patients should be advised to discontinue metformin hydrochloride extended release tablets USP immediately and to promptly notify their health practitioner if unexplained hyperventilation, myalgia, malaise, unusual somnolence, or other nonspecific symptoms occur. Once a patient is stabilized on any dose level of metformin hydrochloride extended release tablets USP, gastrointestinal symptoms, which are common during initiation of metformin therapy, are unlikely to be drug related. Later occurrence of gastrointestinal symptoms could be due to lactic acidosis or other serious disease.

Patients should be counselled against excessive alcohol intake, either acute or chronic, while receiving metformin hydrochloride extended release tablets USP. Metformin hydrochloride extended release tablets USP alone does not usually cause hypoglycemia, although it may occur when metformin hydrochloride extended release tablets USP is used in conjunction with oral sulfonylureas and insulin. When initiating combination therapy, the risks of hypoglycemia, its symptoms and treatment, and conditions that predispose to its development should be explained to patients and responsible family members.

(See Patient Information printed below.) Patients should be informed that metformin hydrochloride extended release tablets USP must be swallowed whole and not crushed or chewed, and that the inactive ingredients may occasionally be eliminated in the feces as a soft mass that may resemble the original tablet.

⚠️ Precautions 1 words ▾

PRECAUTIONS

🍼 Nursing Mothers 89 words ▾

Nursing Mothers Studies in lactating rats show that metformin is excreted into milk and reaches levels comparable to those in plasma. Similar studies have not been conducted in nursing mothers. Because the potential for hypoglycemia in nursing infants may exist, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

If metformin hydrochloride extended release tablets USP is discontinued, and if diet alone is inadequate for controlling blood glucose, insulin therapy should be considered.

🧬 Pharmacokinetics ~3 min read ▾

Pharmacokinetics Absorption and Bioavailability Following a single oral dose of metformin hydrochloride extended release tablets USP, C max is achieved with a median value of 7 hours and a range of 4 hours to 8 hours. Peak plasma levels are approximately 20% lower compared to the same dose of metformin hydrochloride tablets however, the extent of absorption (as measured by AUC) is similar to metformin hydrochloride tablets. At steady state, the AUC and C max are less than dose proportional for metformin hydrochloride extended release tablets USP within the range of 500 mg to 2000 mg administered once daily.

Peak plasma levels are approximately 0.6, 1.1, 1.4, and 1.8 μg/mL for 500, 1000, 1500, and 2000 mg once-daily doses, respectively. The extent of metformin absorption (as measured by AUC) from metformin hydrochloride extended release tablets USP at a 2000 mg once-daily dose is similar to the same total daily dose administered as metformin hydrochloride tablets 1000 mg twice daily. After repeated administration of metformin hydrochloride extended release tablets USP, metformin did not accumulate in plasma.

Within-subject variability in C max and AUC of metformin from metformin hydrochloride extended release tablets USP is comparable to that with metformin hydrochloride tablets. Although the extent of metformin absorption (as measured by AUC) from the metformin hydrochloride extended release tablet USP increased by approximately 50% when given with food, there was no effect of food on C max and T max of metformin. Both high and low fat meals had the same effect on the pharmacokinetics of metformin hydrochloride extended release tablets USP.

Distribution The apparent volume of distribution (V/F) of metformin following single oral doses of metformin hydrochloride 850 mg tablets averaged 654 ± 358 L. Metformin is negligibly bound to plasma proteins, in contrast to sulfonylureas, which are more than 90% protein bound. Metformin partitions into erythrocytes, most likely as a function of time.

At usual clinical doses and dosing schedules of metformin hydrochloride, steady state plasma concentrations of metformin are reached within 24 to 48 hours and are generally LESS THAN 1 μg/mL. During controlled clinical trials of metformin hydrochloride tablets, maximum metformin plasma levels did not exceed 5 μg/mL, even at maximum doses. Metabolism and Elimination Intravenous single-dose studies in normal subjects demonstrate that metformin is excreted unchanged in the urine and does not undergo hepatic metabolism (no metabolites have been identified in humans) nor biliary excretion.

Renal clearance (see Table 1 ) is approximately 3.5 times greater than creatinine clearance, which indicates that tubular secretion is the major route of metformin elimination. Following oral administration, approximately 90% of the absorbed drug is eliminated via the renal route within the first 24 hours, with a plasma elimination half-life of approximately 6.2 hours. In blood, the elimination half-life is approximately 17.6 hours, suggesting that the erythrocyte mass may be a compartment of distribution.

Special Populations Patients with Type 2 Diabetes In the presence of normal renal function, there are no differences between single- or multiple-dose pharmacokinetics of metformin between patients with type 2 diabetes and normal subjects (see Table 1 ), nor is there any accumulation of metformin in either group at usual clinical doses. The pharmacokinetics of metformin hydrochloride extended release tablets USP in patients with type 2 diabetes are comparable to those in healthy normal adults. Renal Insufficiency In patients with decreased renal function (based on measured creatinine clearance), the plasma and blood half-life of metformin is prolonged and the renal clearance is decreased in proportion to the decrease in creatinine clearance (see Table 1 ; also see WARNINGS ).

Hepatic Insufficiency No pharmacokinetic studies of metformin have been conducted in pa… [Excerpted — this section continues on DailyMed.]

🔬 Clinical Studies ~3 min read ▾

Clinical Studies Metformin Hydrochloride Extended Release Tablets USP A 24-week, double-blind, placebo-controlled study of metformin hydrochloride extended release tablets USP , taken once daily with the evening meal, was conducted in patients with type 2 diabetes who had failed to achieve glycemic control with diet and exercise (HbA 1c 7.0%-10.0%, FPG 126-270 mg/dL). Patients entering the study had a mean baseline HbA 1c of 8.0% and a mean baseline FPG of 176 mg/dL. After 12 weeks treatment, mean HbA 1c had increased from baseline by 0.1% and mean FPG decreased from baseline by 2 mg/dL in the placebo group, compared with a decrease in mean HbA 1c had increased from baseline by 0.1% and mean FPG decreased from baseline by 2 mg/dL in the placebo group, compared with a decrease in mean HbA 1c of 0.6% and a decrease in mean FPG of 23 mg/dL in patients treated with metformin hydrochloride extended release tablets USP 1000 mg once daily.

Subsequently, the treatment dose was increased to 1500 mg once daily if HbA 1c was ≥7.0% but <8.0% (patients with HbA 1c ≥8.0% were discontinued from the study). At the final visit (24-week), mean HbA 1c had increased 0.2% from baseline in placebo patients and decreased 0.6% with metformin hydrochloride extended release tablets USP. A 16-week, double-blind, placebo-controlled, dose-response study of metformin hydrochloride extended release tablets USP, taken once daily with the evening meal or twice daily with meals, was conducted in patients with type 2 diabetes who had failed to achieve glycemic control with diet and exercise (HbA 1c 7.0%-11.0%, FPG 126-280 mg/dL).

Changes in glycemic control and body weight are shown in Table 6 . Table 6: Summary of Mean Changes from Baseline* in HbA 1c , Fasting Plasma Glucose, and Body Weight at Final Visit (16-week study) Metformin Hydrochloride Extended Release Tablets USP 500 mg Once Daily 1000 mg Once Daily 1500 mg Once Daily 2000 mg Once Daily 1000 mg Twice Daily Placebo Hemoglobin A 1 c (%) Baseline Change at FINAL VISIT p-value a ( n = 115 ) 8.2 -0.4 <0.001 ( n = 115 ) 8.4 -0.6 <0.001 ( n = 111 ) 8.3 -0.9 <0.001 ( n = 125 ) 8.4 -0.8 <0.001 ( n = 112 ) 8.4 -1.1 <0.001 ( n = 111 ) 8.4 0.1 - FPG ( mg / dL ) Baseline Change at FINAL VISIT p-value a ( n = 126 ) 182.7 -15.2 <0.001 ( n = 118 ) 183.7 -19.3 <0.001 ( n = 120 ) 178.9 -28.5 <0.001 ( n = 132 ) 181.0 -29.9 <0.001 ( n = 122 ) 181.6 -33.6 <0.001 ( n = 113 ) 179.6 7.6 - Body Weight ( lbs ) Baseline Change at FINAL VISIT p-value a ( n = 125 ) 192.9 -1.3 NS** ( n = 119 ) 191.8 -1.3 NS** ( n = 117 ) 188.3 -0.7 NS** ( n = 131 ) 195.4 -1.5 NS** ( n = 119 ) 192.5 -2.2 NS** ( n = 113 ) 194.3 -1.8 - * All patients on diet therapy at Baseline a All comparisons versus Placebo ** Not statistically significant Compared with placebo, improvement in glycemic control was seen at all dose levels of metformin hydrochloride extended release tablets USP and treatment was not associated with any significant change in weight (see DOSAGE AND ADMINISTRATION for dosing recommendations for metformin hydrochloride extended release tablets USP).

A 24-week, double-blind, randomized study of metformin hydrochloride extended release tablets USP, taken once daily with the evening meal, and metformin hydrochloride tablets, taken twice daily (with breakfast and evening meal), was conducted in patients with type 2 diabetes who had been treated with metformin hydrochloride tablets 500 mg twice daily for at least 8 weeks prior to study entry. The metformin hydrochloride tablets dose had not necessarily been titrated to achieve a specific level of glycemic control prior to study entry.

Patients qualified for the study if HbA 1c was ≤8.5% and FPG was ≤200 mg/dL. Changes in glycemic control and body weight are shown in Table 7. Table 7: Summary of Mean Changes from Baseline * in HbA 1c , Fasting Plasma Glucose, and Body Weight at Week 12 and at Final Visit (24-week study) Metformin Hydrochloride Tablets Metformin Hydrochloride Extended Relea… [Excerpted — this section continues on DailyMed.]

📄 Carcinogenesis, Mutagenesis, Impairment of Fertility 184 words ▾

Carcinogenesis, Mutagenesis, Impairment of Fertility Long-term carcinogenicity studies have been performed in rats (dosing duration of 104 weeks) and mice (dosing duration of 91 weeks) at doses up to and including 900 mg/kg/day and 1500 mg/kg/day, respectively. These doses are both approximately four times the maximum recommended human daily dose of 2000 mg based on body surface area comparisons. No evidence of carcinogenicity with metformin was found in either male or female mice.

Similarly, there was no tumorigenic potential observed with metformin in male rats. There was, however, an increased incidence of benign stromal uterine polyps in female rats treated with 900 mg/kg/day. There was no evidence of a mutagenic potential of metformin in the following in vitro tests: Ames test ( S. typhimurium ), gene mutation test (mouse lymphoma cells), or chromosomal aberrations test (human lymphocytes).

Results in the in vivo mouse micronucleus test were also negative. Fertility of male or female rats was unaffected by metformin when administered at doses as high as 600 mg/kg/day, which is approximately three times the maximum recommended human daily dose based on body surface area comparisons.

📄 Patient Package Insert ~3 min read ▾

PATIENT INFORMATION Metformin Hydrochloride Extended Release Tablets USP Rx only Read this information carefully before you start taking this medicine and each time you refill your prescription. There may be new information. This information does not take the place of your doctor’s advice.

Ask your doctor or pharmacist if you do not understand some of this information or if you want to know more about this medicine. What are metformin hydrochloride extended release tablets USP? Metformin hydrochloride is used to treat type 2 diabetes.

This is also known as non-insulin-dependent diabetes mellitus. People with type 2 diabetes are not able to make enough insulin or respond normally to the insulin their bodies make. When this happens, sugar (glucose) builds up in the blood.

This can lead to serious medical problems including kidney damage, amputations, and blindness. Diabetes is also closely linked to heart disease. The main goal of treating diabetes is to lower your blood sugar to a normal level.

High blood sugar can be lowered by diet and exercise, by a number of medicines taken by mouth, and by insulin shots. Before you take metformin hydrochloride extended release tablets USP, try to control your diabetes by exercise and weight loss. While you take your diabetes medicine, continue to exercise and follow the diet advised for your diabetes.

No matter what your recommended diabetes management plan is, studies have shown that maintaining good blood sugar control can prevent or delay complications of diabetes, such as blindness. Metformin hydrochloride extended release tablets USP works longer in your body. Both of these medicines help control your blood sugar in a number of ways.

These include helping your body respond better to the insulin it makes naturally, decreasing the amount of sugar your liver makes, and decreasing the amount of sugar your intestines absorb. Metformin hydrochloride extended release tablets USP do not cause your body to make more insulin. Because of this, when taken alone, they rarely cause hypoglycemia (low blood sugar), and usually do not cause weight gain.

However, when they are taken with a sulfonylurea or with insulin, hypoglycemia is more likely to occur, as is weight gain. WARNING: A small number of people who have metformin hydrochloride have developed a serious condition called lactic acidosis. Lactic acidosis is caused by a buildup of lactic acid in the blood.

This happen more often in people with kidney problems. Most people with kidney problems should not take metformin hydrochloride extended release tablets USP. (See " What are the side effects of metformin hydrochloride extended release tablets USP? ") Who should not take metformin hydrochloride extended release tablets USP?

Some conditions increase your chance of getting lactic acidosis, or cause other problems if you take either of these medicines. Most of the conditions listed below can increase your chance of getting lactic acidosis. Do not take metformin hydrochloride extended release tablets USP if you: have kidney problems have liver problems have heart failure that is treated with medicines, such as Lanoxin ® (digoxin) or Lasix ® (furosemide) drink a lot of alcohol.

This means you binge drink for short periods or drink all the time are seriously dehydrated (have lost a lot of water from your body) are going to have an x-ray procedure with injection of dyes (contrast agents) are going to have surgery develop a serious condition, such as heart attack, severe infection, or a stroke are 80 years or older and you have NOT had your kidney function tested Tell your doctor if you are pregnant or plan to become pregnant. Metformin hydrochloride extended release tablets USP may not be right for you.

Talk with your doctor about your choices. You should also discuss your choices with your doctor if you are nursing a child. Can metformin hydrochloride extended release tablets USP be used in children?

Metformin hydrochloride extended release tablets… [Excerpted — this section continues on DailyMed.]

📄 Package Label / Principal Display Panel 1 words ▾

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