Niacin (Prescription)
Considering Niacin (Prescription) with another medicine? Review your questions before discussing them with a healthcare professional.
Interactions
Supplement interactions on fileNo supplement in this library is recorded as interacting with this medication. Coverage is partial — 171 of 216 medications have interaction data, drawn from the 107 supplements written up so far. Absence here is incomplete coverage, not a safety claim.
- Trade names
- Niacin (Niaspan)
Full write-up
What is it
Niacin (Prescription) is a prescription medicine in the metabolic drug class. Its brand name is Niacin (Niaspan). This page is intended as an educational reference for reviewing questions about Niacin (Prescription) alongside other medicines that may interact with it. It does not replace medical advice; discuss any medical condition or medication concerns with a healthcare professional.
What interacts with it
The most important concern is duplication with Vitamin B3 (Niacin). Using supplemental niacin alongside prescription niacin can unintentionally increase the cumulative amount of the same active ingredient. This may raise the risk of liver toxicity, low blood pressure, high blood sugar, and severe flushing. Anyone considering both forms should discuss the combination with a prescriber or pharmacist.
Finnish Sauna may intensify effects that already occur with niacin. Niacin-related flushing and widening of blood vessels can add to heat-related flushing, low blood pressure, headache, and fainting during sauna use. A clinician or pharmacist can help assess whether this practice is appropriate with prescription niacin.
SAM-e may be opposed by high-dose niacin because niacin metabolism uses methyl groups from SAM-e. This could theoretically reduce the pool available for other methylation reactions and lessen SAM-e effectiveness. The interaction is based on a pharmacology reference and is described as theoretical, so its practical importance is uncertain. Discuss the combination with a healthcare professional, particularly when either product is being used for a medical condition.