nalidixic acid
Pharmaranks rates Nalidixic Acid 3.6/5 for recall safety — an independent score from its FDA recall history and its manufacturer's record. Nalidixic Acid is a medication used to treat Escherichia Coli Infections, Klebsiella Infections, Proteus Infections, Salmonella Infections.
Generic · by Watson Labs
Generic of Neggram
Based on 1 source · Recall-safety score from FDA recall history — this product's own recalls and its manufacturer's record. Not an efficacy or quality rating. methodology →
Key facts
- Active ingredient
- Nalidixic Acid
- Form
- Tablet
- Strength
- Nalidixic Acid 500MG
- Type
- Prescription (Rx)
- Brand or generic
- Generic
- Manufacturer
- Watson Labs
- FDA application
- ANDA072061
- Availability
- Discontinued (per FDA)
May treat (source: NIH RxClass)
Dosage forms
Tablet
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
Ask for the generic
Same active ingredient, far cheaper. Is there a generic? →
Request a 90-day supply
Bulk fills usually lower the per-dose price vs monthly refills.
Use copay cards
Manufacturer copay cards & patient-assistance programs — especially for brand drugs.
Compare alternatives
A same-class option may cost less. See alternatives →
Frequently asked questions
- What does Nalidixic Acid treat?
- Nalidixic Acid (Nalidixic Acid) may be used to treat escherichia coli infections, klebsiella infections, proteus infections, salmonella infections, urinary tract infections, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
- How is Nalidixic Acid rated?
- pharmaranks gives Nalidixic Acid a composite score of 3.6 out of 5, currently based on 1 weighted source (FDA regulatory recall-safety data weighted highest). See our methodology at /how-we-rate.
- Is there a coupon or discount for Nalidixic Acid?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Nalidixic Acid. To pay less, Nalidixic Acid is already a generic — usually the lowest-cost version — so the main levers are comparing cash prices between pharmacies and using a pharmacy discount-card service. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Nalidixic Acid?
- Nalidixic Acid is marketed by Watson Labs. You can see Watson Labs's full profile, rating, and other products on pharmaranks.
- Is Nalidixic Acid a brand-name or generic drug?
- Nalidixic Acid is a generic medication; its active ingredient is Nalidixic Acid. Generics contain the same active ingredient as the brand-name original and are usually lower cost.
- Is Nalidixic Acid available over the counter?
- No. Nalidixic Acid is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Nalidixic Acid come in?
- Nalidixic Acid is currently marketed as tablet, per the FDA's National Drug Code Directory.
- Is Nalidixic Acid FDA-registered?
- Nalidixic Acid is on record with the U.S. FDA under application number ANDA072061. You can verify this on its official FDA label.
- Has Nalidixic Acid been recalled by the FDA?
- Nalidixic Acid has no FDA recalls recorded under its own application in the openFDA enforcement database. Its recall-safety score reflects its manufacturer's overall recall record. This is general reference, not medical advice — check the FDA recall database for the latest alerts.
- Is Nalidixic Acid safe?
- There's no single safe-or-not verdict. pharmaranks gives Nalidixic Acid a recall-safety score of 72/100, based on its FDA recall history (no recalls under its own FDA application) — not an efficacy or side-effect rating. Review its FDA-label side effects and warnings before use, and always consult a licensed professional.
Information is sourced from public FDA regulatory data. Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
What people report to the FDA about Nalidixic Acid
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 49 reports naming Nalidixic Acid, and the FDA flagged 86% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- pathogen resistance10 reports
- drug hypersensitivity5 reports
- sepsis5 reports
- drug resistance4 reports
- vomiting4 reports
- depressed level of consciousness3 reports
- diarrhoea3 reports
- dyspnoea3 reports
Read these as a signal, not a rate. A report does not mean Nalidixic Acid caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label.
Source: openFDA drug/event (FAERS), retrieved September 25, 2026.
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nalidixic acid
72/100