Tolazamide: uses, dosing, side effects & brands
Tolazamide is a medicine sold in the U.S. under 2 brand and generic names. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Tablet
- Sold as
- 2 products — Tolazamide and Tolinase
- Prescription?
- Prescription only
- Generic available?
- Yes
Every tolazamide product we track (2)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
| # | Drug | Rating | Type | Form | Generic? | Pharmacy pays | |
|---|---|---|---|---|---|---|---|
| 1 | Not yet rated | Prescription | Tablet | No data | — | View → | |
| 2 | Not yet rated | Prescription | Tablet | No data | — | View → |
Tolazamide and breastfeeding
From LactMed, the US National Library of Medicine’s Drugs and Lactation Database — quoted, not rewritten.
Full LactMed record for tolazamide: levels in milk, effects in breastfed infants, and the drugs it would consider insteadTolazamide is no longer marketed in the United Staes. Because no information is available on the use of tolazamide during breastfeeding, an alternate drug may be preferred, especially while nursing a newborn or preterm infant. Monitor breastfed infants for signs of hypoglycemia such as jitteriness, excessive sleepiness, poor feeding, seizures cyanosis, apnea, or hypothermia. If there is concern, monitoring of the breastfed infant's blood glucose is advisable during maternal therapy with hypoglycemic agents.
National Institute of Child Health and Human Development, record revised May 15, 2026. LactMed states its information is not a substitute for professional judgement.
What people report to the FDA about tolazamide
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 74 reports naming tolazamide, and the FDA flagged 72% 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:
- blood glucose increased9 reports
- dyspnoea7 reports
- myocardial infarction6 reports
- fatigue5 reports
- renal failure5 reports
- syncope5 reports
- vomiting5 reports
- chest pain4 reports
Read these as a signal, not a rate. A report does not mean tolazamide 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 section above.
Source: openFDA drug/event (FAERS), retrieved July 26, 2026.
Related calculators
Frequently asked questions
Can you take tolazamide with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run tolazamide against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What brand names is tolazamide sold under?
We track 2 tolazamide-containing products in the U.S.: Tolazamide and Tolinase. They are the same active ingredient; they differ in form, manufacturer, price and FDA recall record.
What forms does tolazamide come in?
Across the brands we track, tolazamide is currently marketed as tablet, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic tolazamide?
Yes. Our catalog lists 1 generic tolazamide product alongside the brand versions. A generic has the same active ingredient and must meet the FDA's bioequivalence standard; it usually costs less. Ask your pharmacist which one your plan covers.
Cite this page
- APA
- pharmaranks. (2026, July 24). Tolazamide: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/tolazamide
- MLA
- “Tolazamide: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/tolazamide.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for tolazamide on DailyMed (NIH) ↗.