Can You Take Monacolin K and Vitamin B3 Together?

Use extra care with this pair

The short answer

Both Monacolin K (lovastatin) and high-dose Niacin carry hepatotoxicity risk. This combination mirrors the statin-niacin drug interaction known to elevate liver enzyme abnormalities.

How to arrange timing

If combining for cholesterol management, use lowest effective doses and monitor liver function tests. Choose immediate-release niacin to reduce hepatotoxicity risk.

Reference

Reference noted for this combination: Guyton JR, Am J Cardiol 1998; Björnsson ES, Clin Liver Dis 2017

Important context

Whether supplements suit you together also depends on dose, product formulation, health conditions, and medication use. Ask a doctor or pharmacist first if you take medication, are pregnant or breastfeeding, or have a chronic condition.