Silymarin: uses, dosing, side effects & brands
Silymarin 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
- Sold as
- Milk Thistle
- Generic available?
- Not in our catalog
Every silymarin 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: Milk Thistle.
What people report to the FDA about silymarin
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 602 reports naming silymarin, and the FDA flagged 92% 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:
- nausea33 reports
- aspartate aminotransferase increased29 reports
- diarrhoea29 reports
- alanine aminotransferase increased28 reports
- fatigue27 reports
- pruritus26 reports
- pyrexia26 reports
- dyspnoea25 reports
Read these as a signal, not a rate. A report does not mean silymarin 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 silymarin 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 silymarin against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
Is there a generic silymarin?
We do not currently list a generic-labelled silymarin 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). Silymarin: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/silymarin
- MLA
- “Silymarin: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/silymarin.
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 silymarin on DailyMed (NIH) ↗.