Nitrofurantoin: here's the fair price
This is what US pharmacies pay, on average, for nitrofurantoin. Use it to spot a fair cash price, and feel good about asking for one.
Nitrofurantoin Mcr 50 Mg Cap
A fair cash price is usually this cost plus a dispensing fee. If your quote is many times higher, ask about a generic, another pharmacy, or a cash discount.
Ask for generic Nitrofurantoin Mcr 50 Mg Cap. Pharmacies pay about $5.29 for 30. Ask your pharmacy for its cash price and compare it with your copay. A fair cash price is close to this cost plus a dispensing fee.
Source: CMS NADAC as of 2026-11-04. Ask your prescriber or pharmacist whether a generic is right for you.
Source: CMS NADAC weekly file as of 2026-11-04. Median across NDCs with the same description. Public domain.
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Every strength and form
| Product | Pharmacy cost | 30 count | Effective |
|---|---|---|---|
| NITROFURANTOIN MCR 50 MG CAPGeneric | $0.18 per tablet or capsule | $5.29 | 10/21/2026 |
| NITROFURANTOIN MCR 100 MG CAPGeneric | $0.26 per tablet or capsule | $7.68 | 10/21/2026 |
| NITROFURANTOIN MONO-MCR 100 MGGeneric | $0.27 per tablet or capsule | $8.16 | 10/21/2026 |
| NITROFURANTOIN MCR 25 MG CAPGeneric | $1.38 per tablet or capsule | $41.54 | 10/21/2026 |
| NITROFURANTOIN 25 MG/5 ML SUSPGeneric | $1.70 per mL | n/a | 10/21/2026 |
Source: CMS NADAC, as of 2026-11-04. National average acquisition cost, not a retail quote.
Label basics
What it is used for (FDA label)
1 INDICATIONS & USAGE Nitrofurantoin is indicated in adults and pediatric patients 1 month of age and older for the treatment of urinary tract infections due to susceptible strains of Escherichia coli , Enterococcus species, Staphylococcus aureus , Klebsiella species and Enterobacter species. Limitations of Use Nitrofurantoin is not indicated for the treatment of pyelonephritis or perinephric abscesses [see Warnings and Precautions (5.7)]. Usage To reduce the development of drug-resistant bacteria and maintain the effectiveness of nitrofurantoin and other antibacterial drugs, nitrofurantoin should be used only to treat or prevent infections that are proven or strongly suspected to be caused...
Common side effects (FDA label)
6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed in more detail in other sections of the labeling: Hypersensitivity Reactions [see Warnings and Precautions (5.1)] Pulmonary Reactions [see Warnings and Precautions (5.2)] Hepatotoxicity [see Warnings and Precautions (5.3)] Neuropathy [see Warnings and Precautions (5.4)] Hemolytic anemia [see Warnings and Precautions (5.5)] Clostridioides difficile -associated Diarrhea [see Warnings and Precautions (5.6)] Persistence or Reappearance of Bacteriuria [see Warnings and Precautions (5.7)] The following adverse...
Drug interactions (from the label)
7 DRUG INTERACTIONS Antacids : Decreased absorption of nitrofurantoin. (7.1) Uricosuric drugs: Inhibit renal tubular secretion of nitrofurantoin. (7.2) 7.1 Antacids Antacids containing magnesium trisilicate, when administered concomitantly with nitrofurantoin, reduce both the rate and extent of absorption. The mechanism for this interaction probably is adsorption of nitrofurantoin onto the surface of magnesium trisilicate. If coadministration of nitrofurantoin with antacids containing magnesium trisilicate cannot be avoided, monitor for lack of efficacy [see Clinical Pharmacology (12.3)] . 7.2 Uricosuric Drugs Uricosuric drugs, such as probenecid and sulfinpyrazone, can inhibit renal...
Warnings (from the label)
5 WARNINGS AND PRECAUTIONS Hypersensitivity Reactions: Serious and occasionally fatal hypersensitivity (anaphylactic) reactions have been reported in patients receiving nitrofurantoin. If signs and symptoms of a hypersensitivity reaction occurs, immediately discontinue nitrofurantoin. (5.1) Pulmonary Reactions: Discontinue if sign and symptoms of pulmonary reactions occur and take appropriate measures. (5.2) Hepatotoxicity: Discontinue if signs/symptoms of hepatitis occur. Monitor liver function tests. (5.3) Neuropathy: Peripheral neuropathy has occurred. (5.4) Hemolytic Anemia: Discontinue if sign and symptoms of hemolysis occur. (5.5) Clostridioides difficile -associated diarrhea:...
Source: FDA drug label via openFDA, label effective 2024-03-29. Full label on DailyMed. Excerpts are verbatim and truncated. Read the full label and ask your pharmacist.