Rifamycin: uses, dosing, side effects & brands
Rifamycin is a medicine sold in the U.S. under one brand. 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, delayed release
- Sold as
- Aemcolo
- Prescription?
- Prescription only
- Generic available?
- Not in our catalog
Every rifamycin product we track (1)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
Only one: Aemcolo.
Rifamycin and breastfeeding
From LactMed, the US National Library of Medicine’s Drugs and Lactation Database — quoted, not rewritten.
Full LactMed record for rifamycin: levels in milk, effects in breastfed infants, and the drugs it would consider insteadRifamycin is negligibly absorbed orally and used only for gastrointestinal infections. It is not likely to reach the breastmilk or bloodstream of the infant or cause any adverse effects in breastfed infants after maternal use. If a mother requires rifamycin, it is not a reason to discontinue breastfeeding.
National Institute of Child Health and Human Development, record revised February 15, 2025. LactMed states its information is not a substitute for professional judgement.
What people report to the FDA about rifamycin
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 27 reports naming rifamycin, and the FDA flagged 85% 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:
- hepatic cytolysis4 reports
- abdominal pain2 reports
- abortion induced1 reports
- adverse event1 reports
- confusional state1 reports
- conjunctivitis1 reports
- contraindicated product administered1 reports
- dacryocystitis1 reports
Read these as a signal, not a rate. A report does not mean rifamycin 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 rifamycin 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 rifamycin against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What forms does rifamycin come in?
Across the brands we track, rifamycin is currently marketed as tablet, delayed release, 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 rifamycin?
We do not currently list a generic-labelled rifamycin product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.
Cite this page
- APA
- pharmaranks. (2026, July 24). Rifamycin: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/rifamycin
- MLA
- “Rifamycin: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/rifamycin.
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 rifamycin on DailyMed (NIH) ↗.