Sitagliptin and metformin hydrochloride 50 mg; 500 mg Tablet, Film Coated, 60-count
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This medicine belongs to the Dipeptidyl Peptidase 4 Inhibitor class.
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🩺 Clinical
Metformin is used alone or with other medications, including insulin, to treat type 2 diabetes (condition in which the body does not use insulin normally and, therefore, cannot control the amount of sugar in the blood). Metformin is in a class of drugs called biguanides. Metformin helps to control the amount of glucose (sugar) in your blood. It decreases the amount of glucose you absorb from your food and the amount of glucose made by your liver. Metformin also increases your body's response to insulin, a natural substance that controls the amount of glucose in the blood. Metformin is not used...
Read the full MedlinePlus article ↗- It's a two-in-one pill that tackles high blood sugar in two different ways. The sitagliptin part helps your body hold onto natural gut hormones that tell your pancreas to release m...
- What exactly is this medication doing to help my blood sugar?
- Diarrhea, nausea, and stomach discomfort are the most common complaints, especially in the first few weeks. Taking it with meals — not on an empty stomach — is the single most impo...
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🧪 Inactive Ingredients / Excipients
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UNII M28OL1HH48
Croscarmellose sodium is a plant-based substance derived from cellulose. It acts as a disintegrant, helping tablets and capsules break down quickly in the digestive system so the medicine can be absorbed.
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UNII NZ94SDL6WR
Low-substituted hydroxypropyl cellulose is a plant-based thickener and binder made from cellulose. It helps hold the medicine together, controls how quickly it dissolves, and improves texture in tablets and capsules.
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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.
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UNII 817L1N4CKP
Malic acid is a naturally occurring organic acid found in fruits. It works as a buffer and flavor agent to maintain the medicine's pH balance and add tartness to the product.
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UNII OP1R32D61U
Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
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Polyethylene glycol 3350 is a synthetic polymer used as a solvent, humectant, and thickening agent in medicines. It helps dissolve other ingredients, retain moisture in the product, and achieve the desired consistency.
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UNII 532B59J990
Polyvinyl alcohol is a synthetic polymer made from plant-derived materials. It's used as a binder to hold ingredients together, a film-former in coatings, and a thickener in liquid formulations.
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Povidone K30 is a synthetic polymer made from petroleum. It acts as a binder to hold tablet ingredients together and as a disintegrant to help the tablet break apart in the stomach so the medicine can be absorbed.
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UNII ETJ7Z6XBU4
Silicon dioxide is a naturally occurring mineral used as a glidant and anti-caking agent. It helps powder ingredients flow smoothly and prevents clumping during manufacturing and storage.
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UNII 7CV7WJK4UI
Sodium stearyl fumarate is a synthetic compound made from stearyl alcohol and fumaric acid. It acts as a lubricant and glidant in tablets and capsules, helping ingredients flow smoothly during manufacturing and preventing sticking.
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UNII 7SEV7J4R1U
A powder made from a naturally occurring mineral. In medicines, talc works as a glidant and anti-caking agent, helping tablets and capsules flow smoothly during manufacturing and preventing clumping.
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UNII 15FIX9V2JP
Titanium dioxide is a bright white mineral powder commonly used as a colorant and opacifying agent. It makes pills and tablets white or lighter in color and helps make coatings non-transparent.
12 inactive ingredients listed in the exact product block matched to this NDC.
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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
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💲 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 system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | $2.79 | $167.29 / 60 tablets |
| Medicare drug plans payPart D · Q2 2026 | $3.66 | $219.63 / 60 tablets |
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Zituvimet 50 mg/1; 500 mg 70710-1786-06 | Zydus | 60 tablets | $5.058 | — | Availability likely | — |
| Sitagliptin and metformin hydrochloride 50 mg/1; 500 mgthis 70710-1986-06 | Zydus | 60 tablets | — | — | FDA listed | — |
| Zituvimet 50 mg/1; 500 mg 70771-1859-06 | Zydus | 60 tablets | — | — | FDA listed | — |
| Sitagliptin and metformin hydrochloride 50 mg/1; 500 mg 70771-1869-06 | Zydus | 60 tablets | — | — | FDA listed | — |
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⏳ Availability & generic status
FDA-approved generic versions are listed, and recent pricing/market data suggests they may be available — see Therapeutic equivalents.
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📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 70710-1986-06 You're viewing this | 60 TABLET, FILM COATED in 1 BOTTLE (70710-1986-6) | 2024-03-14 | Active |
| 70710-1986-08 | 180 TABLET, FILM COATED in 1 BOTTLE (70710-1986-8) | 2024-03-14 | Active |
You're viewing the smallest of 2 pack sizes for this product.
In Medicaid, this is the most-dispensed pack of this product — about 100% of fills over the last four reported quarters. See all packs ↓
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| NDC identity (package / product / labeler codes) | ✓ Available |
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| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
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| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope. |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | ✓ Available |
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📄 Full prescribing information FDA SPL
🚨 Boxed Warning ▾
WARNING: LACTIC ACIDOSIS WARNING: LACTIC ACIDOSIS See full prescribing information for complete boxed warning . Postmarketing cases of metformin-associated lactic acidosis have resulted in death, hypothermia, hypotension, and resistant bradyarrhythmias. Symptoms included malaise, myalgias, respiratory distress, somnolence, and abdominal pain.
Laboratory abnormalities included elevated blood lactate levels, anion gap acidosis, increased lactate/pyruvate ratio, and metformin plasma levels generally >5 mcg/mL. ( 5.1 ) Risk factors include renal impairment, concomitant use of certain drugs, age ≥65 years old, radiological studies with contrast, surgery and other procedures, hypoxic states, excessive alcohol intake, hepatic impairment, and mitochondrial diseases. Steps to reduce the risk of and manage metformin-associated lactic acidosis in these high-risk groups are provided in the Full Prescribing Information.
( 5.1 ) If lactic acidosis is suspected, discontinue sitagliptin and metformin hydrochloride tablets and institute general supportive measures in a hospital setting. Prompt hemodialysis is recommended. ( 5.1 ) Postmarketing cases of metformin-associated lactic acidosis have resulted in death, hypothermia, hypotension, and resistant bradyarrhythmias.
The onset of metformin-associated lactic acidosis is often subtle, accompanied only by nonspecific symptoms such as malaise, myalgias, respiratory distress, somnolence, and abdominal pain. Metformin-associated lactic acidosis was characterized by elevated blood lactate levels (>5 mmol/Liter), anion gap acidosis (without evidence of ketonuria or ketonemia), an increased lactate/pyruvate ratio, and metformin plasma levels generally >5 mcg/mL [see Warnings and Precautions ( 5.1 )] . Risk factors for metformin-associated lactic acidosis include renal impairment, concomitant use of certain drugs (e.g., carbonic anhydrase inhibitors such as topiramate), age 65 years old or greater, having a radiological study with contrast, surgery and other procedures, hypoxic states (e.g., acute congestive heart failure), excessive alcohol intake, hepatic impairment and mitochondrial diseases [see Warnings and Precautions ( 5.1 )] .
Steps to reduce the risk of and manage metformin-associated lactic acidosis in these high risk groups are provided in the full prescribing information [see Dosage and Administration ( 2.2 )>, Contraindications ( 4 ), Warnings and Precautions ( 5.1 ), Drug Interactions ( 7 ), and Use in Specific Populations ( 8.6 , 8.7 )] . If metformin-associated lactic acidosis is suspected, immediately discontinue sitagliptin and metformin hydrochloride tablets and institute general supportive measures in a hospital setting. Prompt hemodialysis is recommended [see Warnings and Precautions ( 5.1 )] .
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Sitagliptin and metformin hydrochloride tablets is a combination of sitagliptin, a dipeptidyl peptidase-4 (DPP-4) inhibitor, and metformin hydrochloride (HCl), a biguanide, indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. ( 1 ) Limitations of Use: Sitagliptin and metformin hydrochloride tablets is not recommended in patients with type 1 diabetes mellitus. ( 1 ) Sitagliptin and metformin hydrochloride tablets has not been studied in patients with a history of pancreatitis.
( 1 ) Sitagliptin and metformin hydrochloride tablets is indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. Limitations of Use Sitagliptin and metformin hydrochloride tablets is not recommended in patients with type 1 diabetes mellitus. Sitagliptin and metformin hydrochloride tablets has not been studied in patients with a history of pancreatitis.
It is unknown whether patients with a history of pancreatitis are at increased risk for the development of pancreatitis while using sitagliptin and metformin hydrochloride tablets. [see Warnings and Precautions ( 5.2 )].
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Take sitagliptin and metformin hydrochloride tablets orally twice daily with meals. ( 2.1 ) Individualize the dosage of sitagliptin and metformin hydrochloride tablets on the basis of the patient's current regimen, effectiveness, and tolerability. ( 2.1 ) The maximum recommended daily dose is 100 mg of sitagliptin and 2,000 mg of metformin HCl.
( 2.1 ) The recommended starting dose in patients not currently treated with metformin is 50 mg sitagliptin and 500 mg metformin HCl twice daily, with gradual dose escalation recommended to reduce gastrointestinal side effects associated with metformin. ( 2.1 ) The starting dose in patients already treated with metformin should provide sitagliptin dosed as 50 mg twice daily (100 mg total daily dose) and the dose of metformin already being taken. For patients taking metformin HCl 850 mg twice daily, the recommended starting dose of sitagliptin and metformin hydrochloride tablets is 50 mg sitagliptin and 1,000 mg metformin HCl twice daily.
( 2.1 ) Prior to initiation, assess renal function with estimated glomerular filtration rate (eGFR) ( 2.2 ) ○ Do not use in patients with eGFR below 30 mL/min/1.73 m 2 ○ Sitagliptin and metformin hydrochloride tablets is not recommended in patients with eGFR between 30 and less than 45 mL/min/1.73 m 2 . Sitagliptin and metformin hydrochloride tablets may need to be discontinued at time of, or prior to, iodinated contrast imaging procedures. ( 2.3 )
2.1Recommended Dosage Take sitagliptin and metformin hydrochloride tablets orally twice daily with meals. Individualize the dosage of sitagliptin and metformin hydrochloride tablets on the basis of the patient's current regimen, effectiveness, and tolerability. The maximum recommended daily dose is 100 mg of sitagliptin and 2,000 mg of metformin hydrochloride (HCl).
Do not split or divide sitagliptin and metformin hydrochloride tablets. The recommended starting dose in patients not currently treated with metformin is 50 mg sitagliptin and 500 mg metformin HCl twice daily, with gradual dose escalation recommended to reduce gastrointestinal side effects associated with metformin. The starting dose in patients already treated with metformin should provide sitagliptin dosed as 50 mg twice daily (100 mg total daily dose) and the dose of metformin already being taken.
For patients taking metformin HCl 850 mg twice daily, the recommended starting dose of sitagliptin and metformin hydrochloride tablets is 50 mg sitagliptin and 1,000 mg metformin HCl twice daily.
2.2Recommendations for Use in Renal Impairment Assess renal function prior to initiation of sitagliptin and metformin hydrochloride tablets and periodically thereafter. Sitagliptin and metformin hydrochloride tablets is contraindicated in patients with an estimated glomerular filtration rate (eGFR) below 30 mL/min/1.73 m 2 [see Contraindications ( 4 ) and Warnings and Precautions ( 5.1 )]. Sitagliptin and metformin hydrochloride tablets is not recommended in patients with an eGFR between 30 and less than 45 mL/min/1.73 m 2 because these patients require a lower dosage of sitagliptin than what is available in the fixed combination sitagliptin and metformin hydrochloride tablets product.
2.3Discontinuation for Iodinated Contrast Imaging Procedures Discontinue sitagliptin and metformin hydrochloride tablets at the time of, or prior to, an iodinated contrast imaging procedure in patients with an eGFR between 30 and 60 mL/min/1.73 m 2 ; in patients with a history of liver disease, alcoholism, or heart failure; or in patients who will be administered intra-arterial iodinated contrast. Re-evaluate eGFR 48 hours after the imaging procedure; restart sitagliptin and metformin hydrochloride tablets if renal function is stable [see Warnings and Precautions ( 5.1 )].
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Sitagliptin and metformin hydrochloride Tablets: • sitagliptin 50 mg and metformin HCl 500 mg tablets • sitagliptin 50 mg and metformin HCl 1,000 mg tablets ( 3 ) Tablets: sitagliptin 50 mg and metformin HCl 500 mg tablets are white to off-white, oval shaped, biconvex, film coated tablets debossed with "1786" on one side and plain on the other side. sitagliptin 50 mg and metformin HCl 1,000 mg tablets are reddish brown, oval shaped, biconvex, film coated tablets debossed with "1787" on one side and plain on the other side.
⛔ Contraindications ▾
4 CONTRAINDICATIONS Severe renal impairment: (eGFR below 30 mL/min/1.73 m 2 ) ( 4) Metabolic acidosis, including diabetic ketoacidosis. ( 4 ) History of a serious hypersensitivity reaction to sitagliptin and metformin hydrochloride tablets, sitagliptin, or metformin, such as anaphylaxis or angioedema. (4) Sitagliptin and metformin hydrochloride tablets is contraindicated in patients with: Severe renal impairment (eGFR below 30 mL/min/1.73 m 2 ) [see Warnings and Precautions ( 5.1 )].
Acute or chronic metabolic acidosis, including diabetic ketoacidosis. History of a serious hypersensitivity reaction to sitagliptin, metformin, or any of the excipients in sitagliptin and metformin hydrochloride tablets. Serious hypersensitivity reactions including anaphylaxis or angioedema have been reported. [see Warnings and Precautions ( 5.7 ) and Adverse Reactions ( 6.2 )].
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Lactic Acidosis: See boxed warning . ( 5.1 ) Pancreatitis: There have been postmarketing reports of acute pancreatitis, including fatal and non-fatal hemorrhagic or necrotizing pancreatitis. If pancreatitis is suspected, promptly discontinue sitagliptin and metformin hydrochloride tablets.
( 5.2 ) Heart Failure : Has been observed with two other members of the DPP-4 inhibitor class. Consider risks and benefits of sitagliptin and metformin hydrochloride tablets in patients who have known risk factors for heart failure. Monitor patients for signs and symptoms.
( 5.3 ) Acute Renal Failure: Has been reported postmarketing, sometimes requiring dialysis. Before initiating sitagliptin and metformin hydrochloride tablets and at least annually thereafter, assess renal function. ( 5.4 ) Vitamin B 12 Deficiency: Metformin may lower vitamin B 12 levels.
Measure hematologic parameters annually and vitamin B 12 at 2 to 3 year intervals and manage any abnormalities. ( 5.5 ) Hypoglycemia with Concomitant Use with Insulin or Insulin Secretagogues: Increased risk of hypoglycemia when used in combination with insulin and/or an insulin secretagogue. A lower dose of insulin or insulin secretagogue may be required.
( 5.6 ) Hypersensitivity Reactions: There have been postmarketing reports of serious allergic and hypersensitivity reactions in patients treated with sitagliptin such as anaphylaxis, angioedema, and exfoliative skin conditions including Stevens-Johnson syndrome. Promptly stop sitagliptin and metformin hydrochloride tablets, assess for other potential causes, institute appropriate monitoring and treatment. ( 5.7 ) Severe and Disabling Arthralgia: Has been reported in patients taking DPP-4 inhibitors.
Consider as a possible cause for severe joint pain and discontinue drug if appropriate. ( 5.8 ) Bullous Pemphigoid: There have been postmarketing reports requiring hospitalization in patients taking DPP-4 inhibitors. Tell patients to report development of blisters or erosions.
If bullous pemphigoid is suspected, discontinue sitagliptin and metformin hydrochloride tablets. ( 5.9 )
5.1Lactic Acidosis There have been postmarketing cases of metformin-associated lactic acidosis, including fatal cases. These cases had a subtle onset and were accompanied by nonspecific symptoms such as malaise, myalgias, abdominal pain, respiratory distress, or increased somnolence; however, hypothermia, hypotension and resistant bradyarrhythmias have occurred with severe acidosis. Metformin-associated lactic acidosis was characterized by elevated blood lactate concentrations (>5 mmol/Liter), anion gap acidosis (without evidence of ketonuria or ketonemia), and an increased lactate/pyruvate ratio; metformin plasma levels were generally >5 mcg/mL.
Metformin decreases liver uptake of lactate increasing lactate blood levels which may increase the risk of lactic acidosis, especially in patients at risk. If metformin-associated lactic acidosis is suspected, general supportive measures should be instituted promptly in a hospital setting, along with immediate discontinuation of sitagliptin and metformin hydrochloride tablets. In sitagliptin and metformin hydrochloride tablets treated patients with a diagnosis or strong suspicion of lactic acidosis, prompt hemodialysis is recommended to correct the acidosis and remove accumulated metformin (metformin HCl is dialyzable, with a clearance of up to 170 mL/min under good hemodynamic conditions).
Hemodialysis has often resulted in reversal of symptoms and recovery. Educate patients and their families about the symptoms of lactic acidosis and if these symptoms occur instruct them to discontinue sitagliptin and metformin hydrochloride tablets and report these symptoms to their health care provider. For each of the known and possible risk factors for metformin-associated lactic acidosis, recommendations to reduce the risk of and manage metformin-associated lactic acidosis are provided below: Renal Impairme…
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The following adverse reactions are also discussed elsewhere in the prescribing information: Lactic Acidosis [see Warnings and Precautions ( 5.1 )] Pancreatitis [see Warnings and Precautions ( 5.2 )] Heart Failure [see Warnings and Precautions ( 5.3 )] Acute Renal Failure [see Warnings and Precautions ( 5.4 )] Vitamin B12 Deficiency [see Warnings and Precautions ( 5.5 )] Hypoglycemia with Concomitant Use with Insulin or Insulin Secretagogues [see Warnings and Precautions ( 5.6 )] Hypersensitivity Reactions [see Warnings and Precautions ( 5.7 )] Severe and Disabling Arthralgia [see Warnings and Precautions ( 5.8 )] Bullous Pemphigoid [see Warnings and Precautions ( 5.9 )] Most common adverse reactions (incidence ≥5% of patients simultaneously started on sitagliptin and metformin and more commonly than in patients treated with placebo were diarrhea, upper respiratory tract infection, and headache.
( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Zydus Pharmaceuticals (USA) Inc. at 1-877-993-8779 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Common Adverse Reactions Sitagliptin and Metformin Coadministration in Patients with Type 2 Diabetes Mellitus Inadequately Controlled on Diet and Exercise Table 1 summarizes the most common (≥5% of patients) adverse reactions reported in a 24-week placebo-controlled factorial trial in which sitagliptin and metformin were coadministered to patients with type 2 diabetes mellitus inadequately controlled on diet and exercise.
Table 1: Sitagliptin and Metformin Coadministered to Patients with Type 2 Diabetes Mellitus Inadequately Controlled on Diet and Exercise: Adverse Reactions Reported in ≥5% of Patients Receiving Combination Therapy (and Greater than in Patients Receiving Placebo) Intent-to-treat population. Number of Patients (%) Placebo Sitagliptin 100 mg once daily Metformin HCl 500 mg/ Metformin HCl 1,000 mg twice daily Data pooled for the patients given the lower and higher doses of metformin. Sitagliptin 50 mg twice daily + Metformin HCl 500 mg/ Metformin HCl 1,000 mg twice daily N = 176 N = 179 N = 364 N = 372 Diarrhea 7 (4) 5 (2.8) 28 (7.7) 28 (7.5) Upper Respiratory Tract Infection 9 (5.1) 8 (4.5) 19 (5.2) 23 (6.2) Headache 5 (2.8) 2 (1.1) 14 (3.8) 22 (5.9) Sitagliptin Add-on Therapy in Patients with Type 2 Diabetes Mellitus Inadequately Controlled on Metformin Alone In a 24-week placebo-controlled trial of sitagliptin 100 mg administered once daily added to a twice daily metformin regimen, there were no adverse reactions in ≥5% of patients and more commonly than in patients given placebo.
Discontinuation of therapy due to clinical adverse reactions was similar to the placebo treatment group (sitagliptin and metformin, 1.9%; placebo and metformin, 2.5%). Gastrointestinal Adverse Reactions The incidences of pre-selected gastrointestinal adverse experiences in patients treated with sitagliptin and metformin were similar to those reported for patients treated with metformin alone. See Table 2.
Table 2: Pre-selected Gastrointestinal Adverse Reactions Reported in Patients with Type 2 Diabetes Mellitus Receiving Sitagliptin and Metformin Number of Patients (%) Trial of Sitagliptin and Metformin in Patients Inadequately Controlled on Diet and Exercise Trial of Sitagliptin Add-on in Patients Inadequately Controlled on Metformin Alone Placebo Sitagliptin 100 mg once daily Metformin HCl 500 mg/ Metformin HCl 1,000 mg twice daily Data pooled for the patients given the lower and higher doses of metformin. Sitagliptin 50 mg twice daily + Metformin HCl 500 mg/ Metformin HCl 1,000 mg twice daily Placebo and Metformin HCl ≥1,500 mg daily Sitagliptin 100 mg once daily and Metformin…
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Table 4 presents clinically significant drug interactions with sitagliptin and metformin hydrochloride tablets: Table 4: Clinically Significant Drug Interactions with sitagliptin and metformin hydrochloride tablets Carbonic Anhydrase Inhibitors Clinical Impact: Carbonic anhydrase inhibitors frequently cause a decrease in serum bicarbonate and induce non-anion gap, hyperchloremic metabolic acidosis. Concomitant use of these drugs with sitagliptin and metformin hydrochloride tablets may increase the risk for lactic acidosis.
Intervention: Consider more frequent monitoring of these patients. Examples: Topiramate, zonisamide, acetazolamide or dichlorphenamide. Drugs that Reduce Metformin Clearance Clinical Impact: Concomitant use of drugs that interfere with common renal tubular transport systems involved in the renal elimination of metformin (e.g., organic cationic transporter-2 [OCT 2 ] / multidrug and toxin extrusion [MATE] inhibitors) could increase systemic exposure to metformin and may increase the risk for lactic acidosis [see Clinical Pharmacology ( 12.3 )].
Intervention: Consider the benefits and risks of concomitant use with sitagliptin and metformin hydrochloride tablets. Examples: Ranolazine, vandetanib, dolutegravir, and cimetidine. Alcohol Clinical Impact: Alcohol is known to potentiate the effect of metformin on lactate metabolism.
Intervention: Warn patients against alcohol intake while receiving sitagliptin and metformin hydrochloride tablets. Insulin Secretagogues or Insulin Clinical Impact: Coadministration of sitagliptin and metformin hydrochloride tablets with an insulin secretagogue (e.g., sulfonylurea) or insulin may increase the risk of hypoglycemia. Intervention: Patients receiving an insulin secretagogue or insulin may require lower doses of the insulin secretagogue or insulin.
Drugs Affecting Glycemic Control Clinical Impact: Certain drugs tend to produce hyperglycemia and may lead to loss of glycemic control. Intervention: When such drugs are administered to a patient receiving sitagliptin and metformin hydrochloride tablets, observe the patient closely for loss of blood glucose control. When such drugs are withdrawn from a patient receiving sitagliptin and metformin hydrochloride tablets, observe the patient closely for hypoglycemia.
Examples: Thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blockers, and isoniazid. Carbonic anhydrase inhibitors may increase risk of lactic acidosis. Consider more frequent monitoring.
( 7 ) Drugs that reduce metformin clearance (such as ranolazine, vandetanib, dolutegravir, and cimetidine) may increase the accumulation of metformin. Consider the benefits and risks of concomitant use. ( 7 ) Alcohol can potentiate the effect of metformin on lactate metabolism.
Warn patients against excessive alcohol intake. ( 7 )
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Females and Males of Reproductive Potential: Advise premenopausal females of the potential for an unintended pregnancy. ( 8.3 ) Geriatric Use: Assess renal function more frequently. ( 8.5 ) Hepatic Impairment: Avoid use in patients with hepatic impairment. ( 8.7 )
8.1Pregnancy Risk Summary Available data with sitagliptin and metformin hydrochloride tablets and sitagliptin use in pregnant women are not sufficient to inform a sitagliptin and metformin hydrochloride tablets-associated or sitagliptin-associated risk for major birth defects and miscarriage. Published studies with metformin use during pregnancy have not reported a clear association with metformin and major birth defect or miscarriage risk [see Data]. There are risks to the mother and fetus associated with poorly controlled diabetes in pregnancy [see Clinical Considerations].
No adverse developmental effects were observed when sitagliptin was administered to pregnant rats and rabbits during organogenesis at oral doses up to 30-times and 20-times, respectively, the 100 mg clinical dose, based on AUC. No adverse developmental effects were observed when metformin was administered to pregnant Sprague Dawley rats and rabbits during organogenesis at doses up to 2- and 6-times, respectively, a 2,000 mg clinical dose, based on body surface area [see Data]. The estimated background risk of major birth defects is 6 to 10% in women with pre-gestational diabetes with a hemoglobin A1c (A1C) >7% and has been reported to be as high as 20% to 25% in women with a A1C >10%.
In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20% respectively. Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk Poorly controlled diabetes in pregnancy increases the maternal risk for diabetic ketoacidosis, preeclampsia, spontaneous abortions, preterm delivery, and delivery complications. Poorly controlled diabetes increases the fetal risk for major birth defects, still birth, and macrosomia related morbidity.
Data Human Data Published data from post-marketing studies do not report a clear association with metformin and major birth defects, miscarriage, or adverse maternal or fetal outcomes when metformin is used during pregnancy. However, these studies cannot definitely establish the absence of any risk because of methodological limitations, including small sample size and inconsistent comparator groups. Animal Data Sitagliptin and Metformin No animal reproduction studies were conducted with the coadministration of sitagliptin and metformin.
Sitagliptin In embryo-fetal development studies, sitagliptin administered to pregnant rats and rabbits during organogenesis (gestation day 6 to 20) did not adversely affect developmental outcomes at oral doses up to 250 mg/kg (30-times the 100 mg clinical dose) and 125 mg/kg (20-times the 100 mg clinical dose), respectively, based on AUC. Higher doses in rats associated with maternal toxicity increased the incidence of rib malformations in offspring at 1,000 mg/kg, or approximately 100-times the clinical dose, based on AUC.
Placental transfer of sitagliptin was observed in pregnant rats and rabbits. Sitagliptin administered to female rats from gestation day 6 to lactation day 21 caused no functional or behavioral toxicity in offspring of rats at doses up to 1,000 mg/kg. Metformin Metformin did not cause adverse developmental effects when administered to pregnant Sprague Dawley rats and rabbits up to 600 mg/kg/day during the period of organogenesis.
This represents an exposure of about 2- and 6-times a 2,000 mg clinical dose based on body surface area (mg/m 2 ) for rats and rabbits, respectively.
8.2Lactation Risk Summary There is no information regarding the presence of sitagliptin and metformin hydrochloride tablets in human milk, the effects on the breastfed infant, or the effects on milk production. L…
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary Available data with sitagliptin and metformin hydrochloride tablets and sitagliptin use in pregnant women are not sufficient to inform a sitagliptin and metformin hydrochloride tablets-associated or sitagliptin-associated risk for major birth defects and miscarriage. Published studies with metformin use during pregnancy have not reported a clear association with metformin and major birth defect or miscarriage risk [see Data]. There are risks to the mother and fetus associated with poorly controlled diabetes in pregnancy [see Clinical Considerations].
No adverse developmental effects were observed when sitagliptin was administered to pregnant rats and rabbits during organogenesis at oral doses up to 30-times and 20-times, respectively, the 100 mg clinical dose, based on AUC. No adverse developmental effects were observed when metformin was administered to pregnant Sprague Dawley rats and rabbits during organogenesis at doses up to 2- and 6-times, respectively, a 2,000 mg clinical dose, based on body surface area [see Data]. The estimated background risk of major birth defects is 6 to 10% in women with pre-gestational diabetes with a hemoglobin A1c (A1C) >7% and has been reported to be as high as 20% to 25% in women with a A1C >10%.
In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20% respectively. Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk Poorly controlled diabetes in pregnancy increases the maternal risk for diabetic ketoacidosis, preeclampsia, spontaneous abortions, preterm delivery, and delivery complications. Poorly controlled diabetes increases the fetal risk for major birth defects, still birth, and macrosomia related morbidity.
Data Human Data Published data from post-marketing studies do not report a clear association with metformin and major birth defects, miscarriage, or adverse maternal or fetal outcomes when metformin is used during pregnancy. However, these studies cannot definitely establish the absence of any risk because of methodological limitations, including small sample size and inconsistent comparator groups. Animal Data Sitagliptin and Metformin No animal reproduction studies were conducted with the coadministration of sitagliptin and metformin.
Sitagliptin In embryo-fetal development studies, sitagliptin administered to pregnant rats and rabbits during organogenesis (gestation day 6 to 20) did not adversely affect developmental outcomes at oral doses up to 250 mg/kg (30-times the 100 mg clinical dose) and 125 mg/kg (20-times the 100 mg clinical dose), respectively, based on AUC. Higher doses in rats associated with maternal toxicity increased the incidence of rib malformations in offspring at 1,000 mg/kg, or approximately 100-times the clinical dose, based on AUC.
Placental transfer of sitagliptin was observed in pregnant rats and rabbits. Sitagliptin administered to female rats from gestation day 6 to lactation day 21 caused no functional or behavioral toxicity in offspring of rats at doses up to 1,000 mg/kg. Metformin Metformin did not cause adverse developmental effects when administered to pregnant Sprague Dawley rats and rabbits up to 600 mg/kg/day during the period of organogenesis.
This represents an exposure of about 2- and 6-times a 2,000 mg clinical dose based on body surface area (mg/m 2 ) for rats and rabbits, respectively.
🧒 Pediatric Use ▾
8.4Pediatric Use The safety and effectiveness of sitagliptin and metformin hydrochloride tablets have not been established in pediatric patients. Pediatric information describing clinical studies in which efficacy was not demonstrated is approved for Merck Sharp and Dohme's JANUMET (sitagliptin and metformin hydrochloride) tablets. However, due to Merck Sharp and Dohme's marketing exclusivity rights, this drug product is not labeled with that information.
🧓 Geriatric Use ▾
8.5Geriatric Use Sitagliptin and metformin hydrochloride tablets In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy and the higher risk of lactic acidosis. Renal function should be assessed more frequently in elderly patients. [See Contraindications ( 4 ); Warnings and Precautions ( 5.1 , 5.4 ) and Clinical Pharmacology ( 12.3 ).] Sitagliptin Of the total number of subjects (N=3,884) in clinical studies of sitagliptin, 725 patients were 65 years and over, while 61 patients were 75 years and over.
No overall differences in safety or effectiveness of sitagliptin have been observed between subjects 65 years and over and younger patients. Metformin Controlled clinical studies of metformin 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 young patients.
🆘 Overdosage ▾
10 OVERDOSAGE In the event of overdose with sitagliptin and metformin hydrochloride tablets, consider contacting the Poison Help Line (1-800-222-1222) or a medical toxicologist for additional overdosage management recommendations. Employ the usual supportive measures dictated by the patient's clinical status. Per clinical judgement, consider removal of unabsorbed material from the gastrointestinal tract, and clinical monitoring (including obtaining an ECG).
Sitagliptin is modestly dialyzable. In clinical studies, approximately 13.5% of the dose was removed over a 3- to 4-hour hemodialysis session. Prolonged hemodialysis may be considered if clinically appropriate.
It is not known if sitagliptin is dialyzable by peritoneal dialysis. Overdose of metformin has occurred, including ingestion of amounts greater than 50 grams. Hypoglycemia was reported in approximately 10% of cases, but no causal association with metformin has been established.
Lactic acidosis has been reported in approximately 32% of metformin overdose cases [see Warnings and Precautions ( 5.1 )]. 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 ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Sitagliptin and metformin hydrochloride tablets Sitagliptin and metformin hydrochloride tablets combines two antihyperglycemic agents with complementary mechanisms of action to improve glycemic control in patients with type 2 diabetes mellitus: sitagliptin, a DPP- 4 inhibitor, and metformin HCl, a member of the biguanide class. Sitagliptin Sitagliptin is a DPP-4 inhibitor, which is believed to exert its actions in patients with type 2 diabetes mellitus by slowing the inactivation of incretin hormones.
Concentrations of the active intact hormones are increased by sitagliptin, thereby increasing and prolonging the action of these hormones. Incretin hormones, including glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), are released by the intestine throughout the day, and levels are increased in response to a meal. These hormones are rapidly inactivated by the enzyme DPP-4.
The incretins are part of an endogenous system involved in the physiologic regulation of glucose homeostasis. When blood glucose concentrations are normal or elevated, GLP-1 and GIP increase insulin synthesis and release from pancreatic beta cells by intracellular signaling pathways involving cyclic AMP. GLP-1 also lowers glucagon secretion from pancreatic alpha cells, leading to reduced hepatic glucose production.
By increasing and prolonging active incretin levels, sitagliptin increases insulin release and decreases glucagon levels in the circulation in a glucose-dependent manner. Sitagliptin demonstrates selectivity for DPP-4 and does not inhibit DPP-8 or DPP-9 activity in vitro at concentrations approximating those from therapeutic doses. Metformin Metformin is an antihyperglycemic agent which improves glucose tolerance in patients with type 2 diabetes mellitus, lowering both basal and postprandial plasma glucose.
Metformin decreases hepatic glucose production, decreases intestinal absorption of glucose, and improves insulin sensitivity by increasing peripheral glucose uptake and utilization. With metformin therapy, insulin secretion remains unchanged while fasting insulin levels and day-long plasma insulin response may decrease.
12.2Pharmacodynamics Sitagliptin In patients with type 2 diabetes mellitus, administration of sitagliptin led to inhibition of DPP-4 enzyme activity for a 24-hour period. After an oral glucose load or a meal, this DPP-4 inhibition resulted in a 2- to 3-fold increase in circulating levels of active GLP-1 and GIP, decreased glucagon concentrations, and increased responsiveness of insulin release to glucose, resulting in higher C-peptide and insulin concentrations. The rise in insulin with the decrease in glucagon was associated with lower fasting glucose concentrations and reduced glucose excursion following an oral glucose load or a meal.
In studies with healthy subjects, sitagliptin did not lower blood glucose or cause hypoglycemia. Sitagliptin and Metformin Coadministration In a two-day study in healthy subjects, sitagliptin alone increased active GLP-1 concentrations, whereas metformin alone increased active and total GLP-1 concentrations to similar extents. Coadministration of sitagliptin and metformin had an additive effect on active GLP-1 concentrations.
Sitagliptin, but not metformin, increased active GIP concentrations. It is unclear what these findings mean for changes in glycemic control in patients with type 2 diabetes mellitus. Cardiac Electrophysiology In a randomized, placebo-controlled crossover study, 79 healthy subjects were administered a single oral dose of sitagliptin 100 mg, sitagliptin 800 mg (8 times the recommended dose), and placebo.
At the recommended dose of 100 mg, there was no effect on the QTc interval obtained at the peak plasma concentration, or at any other time during the study. Following the 800-mg dose, the maximum increase in the placebo-corrected mean change in QTc from baseline at 3 hours postdose was 8.0 m…
🧬 Mechanism of Action ▾
12.1Mechanism of Action Sitagliptin and metformin hydrochloride tablets Sitagliptin and metformin hydrochloride tablets combines two antihyperglycemic agents with complementary mechanisms of action to improve glycemic control in patients with type 2 diabetes mellitus: sitagliptin, a DPP- 4 inhibitor, and metformin HCl, a member of the biguanide class. Sitagliptin Sitagliptin is a DPP-4 inhibitor, which is believed to exert its actions in patients with type 2 diabetes mellitus by slowing the inactivation of incretin hormones.
Concentrations of the active intact hormones are increased by sitagliptin, thereby increasing and prolonging the action of these hormones. Incretin hormones, including glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), are released by the intestine throughout the day, and levels are increased in response to a meal. These hormones are rapidly inactivated by the enzyme DPP-4.
The incretins are part of an endogenous system involved in the physiologic regulation of glucose homeostasis. When blood glucose concentrations are normal or elevated, GLP-1 and GIP increase insulin synthesis and release from pancreatic beta cells by intracellular signaling pathways involving cyclic AMP. GLP-1 also lowers glucagon secretion from pancreatic alpha cells, leading to reduced hepatic glucose production.
By increasing and prolonging active incretin levels, sitagliptin increases insulin release and decreases glucagon levels in the circulation in a glucose-dependent manner. Sitagliptin demonstrates selectivity for DPP-4 and does not inhibit DPP-8 or DPP-9 activity in vitro at concentrations approximating those from therapeutic doses. Metformin Metformin is an antihyperglycemic agent which improves glucose tolerance in patients with type 2 diabetes mellitus, lowering both basal and postprandial plasma glucose.
Metformin decreases hepatic glucose production, decreases intestinal absorption of glucose, and improves insulin sensitivity by increasing peripheral glucose uptake and utilization. With metformin therapy, insulin secretion remains unchanged while fasting insulin levels and day-long plasma insulin response may decrease.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Tablets supplied as follows: Contents Description How Supplied NDC 50 mg sitagliptin and 500 mg metformin HCl White to off-white, oval shaped, biconvex, film coated tablets debossed with "1786" on one side and plain on the other side. Bottles of 60 tablets with child-resistant closure. NDC 70710-1986-6 Bottles of 180 tablets with child-resistant closure.
NDC 70710-1986-8 50 mg sitagliptin and 1,000 mg metformin HCl Reddish brown, oval shaped, biconvex, film coated tablets debossed with "1787" on one side and plain on the other side Bottles of 60 tablets with child-resistant closure. NDC 70710-1987-6 Bottles of 180 tablets with child-resistant closure. NDC 70710-1987-8 Store at 20°C to 25°C (68°F to 77°F), excursions permitted between 15°C and 30°C (59°F and 86°F), [see USP Controlled Room Temperature].
Protect from moisture.
📋 Description ▾
11 DESCRIPTION Sitagliptin and metformin hydrochloride tablets (sitagliptin and metformin HCl) tablets for oral use contain sitagliptin and metformin HCl. Sitagliptin Sitagliptin is an orally-active inhibitor of DPP-4 enzyme. Sitagliptin is present in sitagliptin and metformin hydrochloride tablets tablets in the form of sitagliptin free base.
Sitagliptin free base is described chemically as 7-[(3R)-3-amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl]-5,6,7,8-tetrahydro-3 (trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazine with an empirical formula of C 16 H 15 F 6 N 5 O and a molecular weight of 407.31. The structural formula is: Sitagliptin free base is a white to off-white, non-hygroscopic powder. It is soluble in methanol and slightly soluble in water.
Metformin HCl USP Metformin HCl, USP ( N,N -dimethylimidodicarbonimidic diamide hydrochloride) is not chemically or pharmacologically related to any other classes of oral antihyperglycemic agents. Metformin HCl, USP is a white crystalline powder with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.62. Metformin HCl is freely soluble in water, slightly soluble in ethanol (95%), practically insoluble in acetone and in methylene chloride.
The pKa of metformin HCl is 12.4. The pH of a 1% aqueous solution of metformin HCl is 6.68. The structural formula is as shown: Sitagliptin and metformin hydrochloride tablets is available as film-coated tablets containing: 50 mg of sitagliptin and 389.93 mg of metformin equivalent to 500 mg metformin HCl (sitagliptin and metformin hydrochloride tablets 50/500).
50 mg of sitagliptin and 779.86 mg of metformin equivalent to 1,000 mg metformin HCl (sitagliptin and metformin hydrochloride tablets 50/1,000). Each film-coated tablet of sitagliptin and metformin hydrochloride tablets contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, low substituted hydroxypropylcellulose, magnesium stearate, malic acid, microcrystalline cellulose, povidone, and sodium stearyl fumarate. In addition, the film coating contains the following inactive ingredients: polyethylene glycol, polyvinyl alcohol, talc, and titanium dioxide.
The film coating of 50 mg/1,000 mg also contains: FD&C yellow #6 aluminum lake, iron oxide red, and iron oxide yellow. Structure Structure
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Medication Guide). Lactic Acidosis Explain the risks of lactic acidosis, its symptoms, and conditions that predispose to its development. Advise patients to discontinue sitagliptin and metformin hydrochloride tablets immediately and to promptly notify their healthcare provider if unexplained hyperventilation, myalgias, malaise, unusual somnolence or other nonspecific symptoms occur.
Counsel patients against excessive alcohol intake and inform patients about the importance of regular testing of renal function while receiving sitagliptin and metformin hydrochloride tablets. Instruct patients to inform their doctor that they are taking sitagliptin and metformin hydrochloride tablets prior to any surgical or radiological procedure, as temporary discontinuation may be required [see Warnings and Precautions ( 5.1 )]. Pancreatitis Inform patients that acute pancreatitis has been reported during postmarketing use of sitagliptin.
Inform patients that persistent severe abdominal pain, sometimes radiating to the back, which may or may not be accompanied by vomiting, is the hallmark symptom of acute pancreatitis. Instruct patients to promptly discontinue sitagliptin and metformin hydrochloride tablets and contact their physician if persistent severe abdominal pain occurs [see Warnings and Precautions ( 5.2 )]. Heart Failure Inform patients of the signs and symptoms of heart failure.
Before initiating sitagliptin and metformin hydrochloride tablets, ask patients about a history of heart failure or other risk factors for heart failure including moderate to severe renal impairment. Instruct patients to contact their health care provider as soon as possible if they experience symptoms of heart failure, including increasing shortness of breath, rapid increase in weight or swelling of the feet [see Warnings and Precautions ( 5.3 )]. Vitamin B 12 Deficiency Inform patients about the importance of regular monitoring of hematological parameters while receiving sitagliptin and metformin hydrochloride tablets [see Warnings and Precautions ( 5.5 )].
Hypoglycemia Inform patients that the incidence of hypoglycemia is increased when sitagliptin and metformin hydrochloride tablets is added to an insulin secretagogue (e.g., sulfonylurea) or insulin therapy. Explain to patients receiving sitagliptin and metformin hydrochloride tablets in combination with these medications the risks of hypoglycemia, its symptoms and treatment, and conditions that predispose to its development [see Warnings and Precautions ( 5.6 )]. Hypersensitivity Reactions Inform patients that allergic reactions have been reported during postmarketing use of sitagliptin, one of the components of sitagliptin and metformin hydrochloride tablets.
If symptoms of allergic reactions (including rash, hives, and swelling of the face, lips, tongue, and throat that may cause difficulty in breathing or swallowing) occur, patients must stop taking sitagliptin and metformin hydrochloride tablets and seek medical advice promptly. Severe and Disabling Arthralgia Inform patients that severe and disabling joint pain may occur with this class of drugs. The time to onset of symptoms can range from one day to years.
Instruct patients to seek medical advice if severe joint pain occurs [see Warnings and Precautions ( 5.8 )]. Bullous Pemphigoid Inform patients that bullous pemphigoid may occur with this class of drugs. Instruct patients to seek medical advice if blisters or erosions occur [see Warnings and Precautions ( 5.9 )].
Females of Reproductive Age: Inform females that treatment with sitagliptin and metformin hydrochloride tablets may result in ovulation in some premenopausal anovulatory women which may lead to unintended pregnancy [see Use in Specific Populations ( 8.3 )]. Administration Instructions Inform patients that the tablets must never be split or divided before swallowing. The trademarks depicted her…
💬 Medication Guide ▾
Medication Guide Sitagliptin and metformin hydrochloride tablets (SYE-ta-GLIP-tin and met-FOR-min HYE-droe-KLOR-ide) tablets, for oral use Read this Medication Guide carefully before you start taking sitagliptin and metformin hydrochloride tablets and each time you get a refill. There may be new information. This information does not take the place of talking with your healthcare provider about your medical condition or your treatment.
If you have any questions about sitagliptin and metformin hydrochloride tablets, ask your healthcare provider or pharmacist What is the most important information I should know about sitagliptin and metformin hydrochloride tablets? sitagliptin and metformin hydrochloride tablets can cause serious side effects , including: 1. Lactic Acidosis. Metformin, one of the medicines in sitagliptin and metformin hydrochloride tablets, can cause a rare but serious condition called lactic acidosis (a buildup of an acid in the blood) that can cause death.
Lactic acidosis is a medical emergency and must be treated in the hospital. Stop taking sitagliptin and metformin hydrochloride tablets and call your healthcare provider right away if you have any of the following symptoms, which could be signs of lactic acidosis: you feel cold in your hands or feet you feel dizzy or lightheaded you have a slow or irregular heartbeat you feel very weak or tired you have unusual (not normal) muscle pain you have trouble breathing you feel sleepy or drowsy you have stomach pains, nausea or vomiting Most people who have had lactic acidosis with metformin have other things that, combined with the metformin, led to the lactic acidosis.
Tell your healthcare provider if you have any of the following, because you have a higher chance for getting lactic acidosis with sitagliptin and metformin hydrochloride tablets if you: have severe kidney problems or your kidneys are affected by certain x-ray tests that use injectable dye have liver problems drink alcohol very often, or drink a lot of alcohol in short-term "binge" drinking get dehydrated (lose a large amount of body fluids). This can happen if you are sick with a fever, vomiting, or diarrhea. Dehydration can also happen when you sweat a lot with activity or exercise and do not drink enough fluids. have surgery have a heart attack, severe infection, or stroke are 65 years of age or older have a genetically inherited disease affecting mitochondria (the energy-producing parts within cells) such as mitochondrial encephalomyopathy with lactic acidosis, and stroke-like episodes (MELAS) syndrome and maternally inherited diabetes and deafness (MIDD).
The best way to keep from having a problem with lactic acidosis from metformin is to tell your healthcare provider if you have any of the problems in the list above. Your healthcare provider may decide to stop your sitagliptin and metformin hydrochloride tablets for a while if you have any of these things. Sitagliptin and metformin hydrochloride tablets can have other serious side effects.
See "What are the possible side effects of sitagliptin and metformin hydrochloride tablets?" 2. Inflammation of the pancreas (pancreatitis) which may be severe and lead to death. Certain medical problems make you more likely to get pancreatitis.
Before you start taking sitagliptin and metformin hydrochloride tablets, tell your healthcare provider if you have ever had: pancreatitis stones in your gallbladder (gallstones) high blood triglyceride levels a history of alcoholism kidney problems Stop taking sitagliptin and metformin hydrochloride tablets and call your healthcare provider right away if you have pain in your stomach area (abdomen) that is severe and will not go away. The pain may be felt going from your abdomen through to your back. The pain may happen with or without vomiting.
These may be symptoms of pancreatitis. 3. Heart failure.
Heart failure means that your heart does not pump blood well enough. Before you start taking sitagliptin and metformi…