Furosemide 20 mg Tablet, 1,000-count — NDC 64980-562-10 (Billing 64980-0562-10)
This is a package of 1,000 tablets of Furosemide 20 mg Tablet from Rising Pharma Holdings, Inc., marketed since Nov 2022 and currently FDA-listed; retail pharmacies pay about $0.0260 per tablet (NADAC). It is the main listing for this product, which comes in 2 package sizes.
Other active recalls for Furosemide (different manufacturers) — 1 · tap to view
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification
- GSN (GCN sequence number): 008208
- GCN: 34961
- GPI-14 (Medi-Span): 37200030000305
- HICL (First Databank): 003660
- AHFS class code: 24:36.08.00
- RxCUI (RxNorm): 197732
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
- RxNorm (NLM RxNav) · catalog refreshed Sep 24, 2026
- Medi-Span GPI (licensed)
- First Databank (licensed) · refreshed Oct 1, 2026
RxNorm drug class
This medicine belongs to the Loop Diuretic class.
Where does this data come from?
- RxClass (NLM) · catalog refreshed Sep 24, 2026
Clinical
- It helps your body get rid of extra fluid. It is used for swelling from heart failure, liver cirrhosis and kidney disease. In adults, oral forms can also treat high blood pressure.
- Tablets and oral solution are swallowed, usually once or twice a day, or on certain days of the week if your doctor says so. Injected forms are for short-term use and are switched...
- Dizziness, stomach upset, headache and more frequent urination can happen. Call your doctor right away for ringing in the ears, hearing loss, fainting, severe weakness, little urin...
- What side effects are normal, and what should I call about?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Furosemide — tap one for details:
Furosemide may be associated with lower levels of 9 nutrients — worth a chat with your pharmacist, not a cause for alarm.
Where does this data come from?
- MedlinePlus (NLM) · refreshed Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
Ask a licensed pharmacist directly — free, answered by our team.
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 ea | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $0.026 | $26.00 / 1000 tablets |
| Medicaid paysCMS SDUD · 12 mo | $0.1658 | $165.80 / 1000 tablets |
| Medicare drug plans payPart D · Q2 2026 | $0.1154 | $115.40 / 1000 tablets |
Where does this data come from?
- CMS NADAC weekly file · file of Sep 30, 2026
- CMS ASP pricing files · refreshed Sep 20, 2026
- CMS Medicaid State Drug Utilization Data · through Q1 2026
- CMS Part D plan pricing files · refreshed Sep 24, 2026
- VA National Acquisition Center price file
Packaging — all sizes for this product
| Package NDC | Description | Per unit | Per pack | Marketing start | Marketing end | Status |
|---|---|---|---|---|---|---|
| 64980-0562-01 64980-562-01 | 100 TABLET in 1 BOTTLE | $0.0260 / ea | $2.60 | 2022-11-05 | — | Active |
| 64980-0562-10 You're viewing this Main listing | 1000 TABLET in 1 BOTTLE | $0.0260 / ea | $26.02 | 2022-11-05 | — | Active |
You're viewing the largest of 2 pack sizes for this product.
This pack effectively ties for the lowest per-ea cost of the 2 priced pack sizes ($0.0260 NADAC).
In Medicaid, this is the most-dispensed pack of this product — about 93% of fills over the last four reported quarters. See all packs ↓
Pack size FAQ
What quantity is in this package?
How does this package differ from NDC 64980-0562-01?
What NDC number is used to bill for this package of Furosemide 20 mg Tablet?
Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.
Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Furosemide 20 mg 00054-4297-25 | Hikma | 100 tablets | $0.026 | AB | Availability likely | — |
| Furosemide 20 mg 00054-8297-25 | Hikma | 100 tablets | $0.026 | AB | Availability likely | — |
| Furosemide 20 mg 00904-7177-61 | Major | 100 tablets | $0.026 | AB | Availability likely | — |
| Furosemide 20 mg 43547-0401-10 | Solco | 100 tablets | $0.026 | AB | Availability likely | — |
| Furosemide 20 mg 62135-0753-90 | Chartwell | 90 tablets | $0.026 | — | Availability likely | — |
| Furosemide 20 mgthis 64980-0562-10 | Rising | 1000 tablets | $0.026 | AB | Availability likely | — |
| Furosemide 20 mg 69315-0116-01 | Leading | 100 tablets | $0.026 | AB | Availability likely | — |
| Furosemide 20 mg 83980-0002-01 | Ipca | 100 tablets | $0.026 | AB | Availability likely | — |
| Lasix 20 mg 30698-0067-01 | Validus | 100 tablets | $0.749 | — | Availability likely | +2777% |
| Furosemide 20 mg 00615-8368-05 | NCS | 15 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 10135-0832-01 | Marlex | 100 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 17224-0178-21 | Calvin | 21 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 42291-0468-01 | AvKARE | 100 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 43063-0702-21 | PD-Rx | 21 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 43063-0849-21 | PD-Rx | 21 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 43353-0747-30 | Aphena | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 50090-5429-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 50090-6219-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 50090-6642-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 50090-6942-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 50090-7706-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 50090-7708-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 51655-0269-25 | Northwind | 60 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 51655-0310-53 | Northwind | 10 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 51655-0481-52 | Northwind | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 55154-2349-00 | Cardinal | 10 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 59651-0796-91 | Aurobindo | 100000 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 61919-0242-30 | DIRECT | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 63187-0517-30 | Proficient | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 63187-0739-10 | Proficient | 10 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 63561-0164-01 | Granulation | 100 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 63629-1214-01 | Bryant | 1000 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 63629-1215-01 | Bryant | 100 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 67046-0768-03 | Coupler | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 67046-1589-03 | Coupler | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 67296-2136-01 | Redpharm | 3 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 68071-1708-01 | NuCare | 100 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 68071-3673-03 | NuCare | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 68071-4534-01 | NuCare | 100 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 68788-6948-01 | Preferred | 100 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 68788-8870-01 | Prefferred | 100 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 70518-0050-00 | REMEDYREPACK | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 70518-2528-01 | REMEDYREPACK | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 70518-3061-00 | REMEDYREPACK | 5 tablets | — | AB | Discontinued | — |
| Furosemide 20 mg 70518-3757-00 | REMEDYREPACK | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 70518-4679-00 | REMEDYREPACK | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 71335-0384-01 | Bryant | 30 tablets | — | AB | Discontinued | — |
| Furosemide 20 mg 71335-0852-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 71335-2319-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 71610-0096-30 | Aphena | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 71610-0635-30 | Aphena | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 71610-0843-30 | Aphena | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 72162-1360-00 | Bryant | 1000 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 72789-0030-30 | PD-Rx | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 82868-0050-30 | Northwind | 30 tablets | — | AB | FDA listed | — |
| Furosemide 20 mg 87441-0033-01 | Unit | 30 tablets | — | AB | FDA listed | — |
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA Orange Book · refreshed Sep 3, 2026
- CMS NADAC weekly file · file of Sep 30, 2026
Availability & generic status
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?
- FDA Orange Book · refreshed Sep 3, 2026
What it looks like
Where does this data come from?
- FDA label on DailyMed · label index refreshed Oct 1, 2026
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.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII EWQ57Q8I5X
Lactose monohydrate is a natural sugar derived from milk. It serves as a filler and binder in tablets and capsules, helping create the proper size, texture, and consistency of the medicine.
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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 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 O8232NY3SJ
A plant-based carbohydrate derived from corn kernels. It acts as a filler to add bulk, a binder to hold ingredients together, and a disintegrant to help the tablet break apart in your stomach for absorption.
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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.
5 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
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.- FDA label on DailyMed · label index refreshed Oct 1, 2026
- FDA openFDA NDC Directory · synced Oct 1, 2026
Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
Manufacturer & labeler
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- Drugs@FDA
Full prescribing information FDA SPL
🎯 Indications and Usage ▾
INDICATIONS AND USAGE Edema Furosemide tablets are indicated in adults and pediatric patients for the treatment of edema associated with congestive heart failure, cirrhosis of the liver, and renal disease, including the nephrotic syndrome. Furosemide Tablets are particularly useful when an agent with greater diuretic potential is desired. Hypertension Oral furosemide may be used in adults for the treatment of hypertension alone or in combination with other antihypertensive agents.
Hypertensive patients who cannot be adequately controlled with thiazides will probably also not be adequately controlled with furosemide alone.
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION Edema Therapy should be individualized according to patient response to gain maximal therapeutic response and to determine the minimal dose needed to maintain that response. Adults --The usual initial dose of furosemide is 20 mg to 80 mg given as a single dose. Ordinarily a prompt diuresis ensues.
If needed, the same dose can be administered 6 to 8 hours later or the dose may be increased. The dose may be raised by 20 mg or 40 mg and given not sooner than 6 to 8 hours after the previous dose until the desired diuretic effect has been obtained. The individually determined single dose should then be given once or twice daily (e.g., at 8 am and 2 pm).
The dose of furosemide may be carefully titrated up to 600 mg/day in patients with clinically severe edematous states. Edema may be most efficiently and safely mobilized by giving furosemide on 2 to 4 consecutive days each week. When doses exceeding 80 mg/day are given for prolonged periods, careful clinical observation and laboratory monitoring are particularly advisable (see PRECAUTIONS : Laboratory Test).
Geriatric patients --In general, dose selection for the elderly patient should be cautious, usually starting at the low end of the dosing range (see PRECAUTIONS : Geriatric Use). Pediatric patients --The usual initial dose of oral furosemide in pediatric patients is 2 mg/kg body weight, given as a single dose. If the diuretic response is not satisfactory after the initial dose, dosage may be increased by 1 or 2 mg/kg no sooner than 6 to 8 hours after the previous dose.
Doses greater than 6 mg/kg body weight are not recommended. For maintenance therapy in pediatric patients, the dose should be adjusted to the minimum effective level. Hypertension Therapy should be individualized according to the patient's response to gain maximal therapeutic response and to determine the minimal dose needed to maintain the therapeutic response.
Adults --The usual initial dose of furosemide for hypertension is 80mg, usually divided into 40mg twice a day. Dosage should then be adjusted according to response. If response is not satisfactory, add other antihypertensive agents.
Changes in blood pressure must be carefully monitored when furosemide is used with other antihypertensive drugs, especially during initial therapy. To prevent excessive drop in blood pressure, the dosage of other agents should be reduced by at least 50% when furosemide is added to the regimen. As the blood pressure falls under the potentiating effect of furosemide, a further reduction in dosage or even discontinuation of other antihypertensive drugs may be necessary.
Geriatric patients --In general, dose selection and dose adjustment for the elderly patient should be cautious, usually starting at the low end of the dosing range (see PRECAUTIONS : Geriatric Use).
⛔ Contraindications ▾
CONTRAINDICATIONS Furosemide tablets are contraindicated in patients with anuria and in patients with a history of hypersensitivity to furosemide.
⚠️ Warnings and Cautions ▾
WARNINGS In patients with hepatic cirrhosis and ascites, furosemide therapy is best initiated in the hospital. In hepatic coma and in states of electrolyte depletion, therapy should not be instituted until the basic condition is improved. Sudden alterations of fluid and electrolyte balance in patients with cirrhosis may precipitate hepatic coma; therefore, strict observation is necessary during the period of diuresis.
Supplemental potassium chloride and, if required, an aldosterone antagonist are helpful in preventing hypokalemia and metabolic alkalosis. If increasing azotemia and oliguria occur during treatment of severe progressive renal disease, furosemide should be discontinued. Cases of tinnitus and reversible or irreversible hearing impairment and deafness have been reported.
Reports usually indicate that furosemide ototoxicity is associated with rapid injection, severe renal impairment, the use of higher than recommended doses, hypoproteinemia or concomitant therapy with aminoglycoside antibiotics, ethacrynic acid, or other ototoxic drugs. If the physician elects to use high dose parenteral therapy, controlled intravenous infusion is advisable (for adults, an infusion rate not exceeding 4mg furosemide per minute has been used) (see PRECAUTIONS : Drug Interactions).
🤒 Adverse Reactions ▾
ADVERSE REACTIONS Adverse reactions are categorized below by organ system and listed by decreasing severity. Gastrointestinal System Reactions 1.hepatic encephalopathy in patients with hepatocellular insufficiency 6. oral and gastric irritation 2. pancreatitis 7. cramping 3. jaundice (intrahepatic cholestatic jaundice) 8. diarrhea 4. increased liver enzymes 9. constipation 5. anorexia 10. nausea 11. vomiting Systemic Hypersensitivity Reactions 1. severe anaphylactic or anaphylactoid reactions (eg., with shock) 3. interstitial nephritis 2. systemic vasculitis 4. necrotizing angiitis Central Nervous System Reactions 1. tinnitus and hearing loss 5. headache 2. paresthesias 6. blurred vision 3. vertigo 7. xanthopsia 4. dizziness Hematologic Reactions 1. aplastic anemia 5. leukopenia 2. thrombocytopenia 6. anemia 3. agranulocytosis 7.eosinophilia 4. hemolytic anemia Dermatologic-Hypersensitivity Reactions 1. toxic epidermal necrolysis 2. stevens-johnson syndrome 3. erythema multiforme 4. drug rash with eosinophilia and systemic symptoms 5. acute generalized exanthematous pustulosis 6. exfoliative dermatitis 7. bullous pemphigoid 8. purpura 9. photosensitivity 10. rash 11. pruritis 12. urticaria Cardiovascular Reaction Orthostatic hypotension may occur and be aggravated by alcohol, barbiturates, or narcotics.
Increase in cholesterol and triglyceride serum levels Other Reactions 1. hyperglycemia 6. restlessness 2. glycosuria 7. urinary bladder spasm 3. hyperuricemia 8. thrombophlebitis 4. muscle spasm 5. weakness 9. fever Whenever adverse reactions are moderate or severe, furosemide dosage should be reduced or therapy withdrawn. To report SUSPECTED ADVERSE REACTIONS, contact Rising Pharma Holdings, Inc. at 1-844-874-7464 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
🆘 Overdosage ▾
OVERDOSAGE The principal signs and symptoms of overdose with furosemide are dehydration, blood volume reduction, hypotension, electrolyte imbalance, hypokalemia and hypochloremic alkalosis, and are extensions of its diuretic action. The acute toxicity of furosemide has been determined in mice, rats and dogs. In all three, the oral LD 50 exceeded 1,000 mg/kg body weight, while the intravenous LD 50 ranged from 300 to 680 mg/kg.
The acute intragastric toxicity in neonatal rats is 7 to 10 times that of adult rats. The concentration of furosemide in biological fluids associated with toxicity or death is not known. Treatment of overdosage is supportive and consists of replacement of excessive fluid and electrolyte losses.
Serum electrolytes, carbon dioxide level and blood pressure should be determined frequently. Adequate drainage must be assured in patients with urinary bladder outlet obstruction (such as prostatic hypertrophy). Hemodialysis does not accelerate furosemide elimination.
🧬 Clinical Pharmacology ▾
CLINICAL PHARMACOLOGY Investigations into the mode of action of furosemide have utilized micro puncture studies in rats, stop flow experiments in dogs and various clearance studies in both humans and experimental animals. It has been demonstrated that furosemide inhibits primarily the absorption of sodium and chloride not only in the proximal and distal tubules but also in the loop of Henle. The high degree of efficacy is largely due to the unique site of action.
The action on the distal tubule is independent of any inhibitory effect on carbonic anhydrase and aldosterone. Recent evidence suggests that furosemide glucuronide is the only or at least the major biotransformation product of furosemide in man. Furosemide is extensively bound to plasma proteins, mainly to albumin.
Plasma concentrations ranging from 1 μg/mL to 400 μg/mL are 91% to 99% bound in healthy individuals. The unbound fraction averages 2.3% to 4.1% at therapeutic concentrations. The onset of diuresis following oral administration is within 1 hour.
The peak effect occurs within the first or second hour. The duration of diuretic effect is 6 to 8 hours. In fasted normal men, the mean bioavailability of furosemide from Furosemide tablets and Furosemide Oral Solution is 64% and 60%, respectively, of that from an intravenous injection of the drug.
Although furosemide is more rapidly absorbed from the oral solution (50 minutes) than from the tablet (87 minutes), peak plasma levels and area under the plasma concentration-time curves do not differ significantly. Peak plasma concentrations increase with increasing dose but times-to-peak do not differ among doses. The terminal half-life of furosemide is approximately 2 hours.
Significantly more furosemide is excreted in urine following the IV injection than after the tablet or oral solution. There are no significant differences between the two oral formulations in the amount of unchanged drug excreted in urine. Geriatric Population Furosemide binding to albumin may be reduced in elderly patients.
Furosemide is predominantly excreted unchanged in the urine. The renal clearance of furosemide after intravenous administration in older healthy male subjects (60 to 70 years of age) is statistically significantly smaller than in younger healthy male subjects (20 to 35 years of age). The initial diuretic effect of furosemide in older subjects is decreased relative to younger subjects (see PRECAUTIONS : Geriatric Use).
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED Furosemide Tablets, USP 20 mg are supplied as white, oval, biconvex tablets debossed with "16" on one side and plain on other side. NDC 64980-562-01 bottles of 100 tablets NDC 64980-562-10 bottles of 1,000 tablets Furosemide Tablets, USP 40 mg are supplied as white, round, flat face, beveled edge scored tablets debossed with "17" on one side and plain on other side. NDC 64980-563-01 bottles of 100 tablets NDC 64980-563-10 bottles of 1,000 tablets Furosemide Tablets, USP 80 mg are supplied as white, round, flat face, facetted-edge scored tablets debossed with "19" on one side and plain on other side.
NDC 64980-564-01 bottles of 100 tablets NDC 64980-564-50 bottles of 500 tablets Note: Dispense in well-closed, light-resistant containers. Exposure to light might cause a slight discoloration. Discolored tablets should not be dispensed.
Store at 68° to 77°F (20° to 25°C); excursions permitted to 59° to 86°F (15° to 30°C) [see USP Controlled Room Temperature]. Manufactured by: Graviti Pharmaceuticals Pvt. Ltd.
Telangana -502307, INDIA. M.L. No.: 12/SRD/TS/2017/F/G Distributed by: Rising Pharma Holdings, Inc.
East Brunswick, NJ 08816 Revised: 02/2025
📋 Description ▾
DESCRIPTION Furosemide Tablets, USP are a diuretic which is an anthranilic acid derivative. Furosemide tablets for oral administration contain furosemide as the active ingredient and the following inactive ingredients: lactose monohydrate, corn starch, pregelatinized starch, talc, colloidal silicon dioxide, magnesium stearate. Chemically, it is 4-chloro-N-furfuryl-5-sulfamoylanthranilic acid.
Furosemide tablets are available as white tablets for oral administration in dosage strengths of 20 mg, 40 mg and 80 mg. Furosemide is a white to off-white odorless crystalline powder. It is practically insoluble in water, sparingly soluble in alcohol, freely soluble in dilute alkali solutions and insoluble in dilute acids.
The CAS Registry Number is 54-31-9. The structural formula is as follows: Meets USP dissolution test 1. Image
⚠️ Precautions ▾
PRECAUTIONS General Excessive diuresis may cause dehydration and blood volume reduction with circulatory collapse and possibly vascular thrombosis and embolism, particularly in elderly patients. As with any effective diuretic, electrolyte depletion may occur during furosemide therapy, especially in patients receiving higher doses and a restricted salt intake. Hypokalemia may develop with furosemide, especially with brisk diuresis, inadequate oral electrolyte intake, when cirrhosis is present, or during concomitant use of corticosteroids, ACTH, licorice in large amounts, or prolonged use of laxatives.
Digitalis therapy may exaggerate metabolic effects of hypokalemia, especially myocardial effects. All patients receiving furosemide therapy should be observed for these signs or symptoms of fluid or electrolyte imbalance (hyponatremia, hypochloremic alkalosis, hypokalemia, hypomagnesemia or hypocalcemia): dryness of mouth, thirst, weakness, lethargy, drowsiness, restlessness, muscle pains or cramps, muscular fatigue, hypotension, oliguria, tachycardia, arrhythmia, or gastrointestinal disturbances such as nausea and vomiting.
Increases in blood glucose and alterations in glucose tolerance tests (with abnormalities of the fasting and 2-hour postprandial sugar) have been observed, and rarely, precipitation of diabetes mellitus has been reported. In patients with severe symptoms of urinary retention (because of bladder emptying disorders, prostatic hyperplasia, urethral narrowing), the administration of furosemide can cause acute urinary retention related to increased production and retention of urine. Thus, these patients require careful monitoring, especially during the initial stages of treatment.
In patients at high risk for radiocontrast nephropathy, furosemide can lead to a higher incidence of deterioration in renal function after receiving radiocontrast compared to high-risk patients who received only intravenous hydration prior to receiving radiocontrast. In patients with hypoproteinemia (e.g., associated with nephrotic syndrome), the effect of furosemide may be weakened and its ototoxicity potentiated. Asymptomatic hyperuricemia can occur and gout may rarely be precipitated.
Patients allergic to sulfonamides may also be allergic to furosemide. The possibility exists of exacerbation or activation of systemic lupus erythematosus. As with many other drugs, patients should be observed regularly for the possible occurrence of blood dyscrasias, liver or kidney damage, or other idiosyncratic reactions.
Information for Patients Patients receiving furosemide should be advised that they may experience symptoms from excessive fluid and/or electrolyte losses. The postural hypotension that sometimes occurs can usually be managed by getting up slowly. Potassium supplements and/or dietary measures may be needed to control or avoid hypokalemia.
Patients with diabetes mellitus should be told that furosemide may increase blood glucose levels and thereby affect urine glucose tests. The skin of some patients may be more sensitive to the effects of sunlight while taking furosemide. Hypertensive patients should avoid medications that may increase blood pressure, including over-the-counter products for appetite suppression and cold symptoms.
Laboratory Tests Serum electrolytes (particularly potassium), CO 2 , creatinine and BUN should be determined frequently during the first few months of furosemide therapy and periodically thereafter. Serum and urine electrolyte determinations are particularly important when the patient is vomiting profusely or receiving parenteral fluids. Abnormalities should be corrected or the drug temporarily withdrawn.
Other medications may also influence serum electrolytes. Reversible elevations of BUN may occur and are associated with dehydration, which should be avoided, particularly in patients with renal insufficiency. Urine and blood glucose should be checked periodically in diabetics receiving furosemide, even in thos… [Excerpted — this section continues on DailyMed.]
📄 Package Label / Principal Display Panel ▾
PACKAGE LABEL.PRINCIPAL DISPLAY PANEL NDC 64980-562-01 Furosemide Tablets, USP 20 mg Rx Only 100 Tablets NDC 64980-563-01 Furosemide Tablets, USP 40 mg Rx Only 100 Tablets NDC 64980-564-01 Furosemide Tablets, USP 80 mg Rx Only 100 Tablets image image image