Statins (HMG-CoA Reductase Inhibitors)

Statins (HMG-CoA Reductase Inhibitors) are a metabolic medication class. The family includes Atorvastatin (Lipitor), Simvastatin (Zocor), Rosuvastatin (Crestor), Pravastatin, Lovastatin, and Fluvastatin.

This page is an educational reference for checking whether another product may interact with these medicines or named products. It is not medical advice; consult a clinician regarding any medical condition or medication combination.

The most important concerns involve changes in statin exposure or increased muscle toxicity. St. John's Wort induces CYP3A4, which can lower levels of some statins, especially atorvastatin and simvastatin, potentially reducing cardioprotective efficacy and increasing cardiovascular event risk. Pharmacologic-dose Vitamin B3 (Niacin) can increase skeletal-muscle toxicity when combined with a statin, including myopathy or rhabdomyolysis; this combination generally requires clinician supervision.

CBD (Cannabidiol) may inhibit CYP3A4 and increase levels of some statins, particularly simvastatin and atorvastatin, with a possible increase in myopathy or rhabdomyolysis risk. Berberine may alter statin exposure, and an article has raised concern about possible CYP3A4 and hERG channel effects. Black Seed Oil, Curcumin, Milk Thistle (Silymarin), Oregano Oil, Resveratrol, and Tongkat Ali (Eurycoma) involve mainly theoretical or unconfirmed effects on CYP3A4 or statin exposure. Clinically meaningful interactions have not been established for several of these products, so concerns may vary by statin, product, and dose. Black Elderberry has no demonstrated clinically meaningful interaction with statins; its concern is theoretical.

Some products are described as potentially complementary rather than as established treatments for the same purpose. Omega-3 has shown cardiovascular benefit on top of statin therapy in JELIS and REDUCE-IT, while findings from prescription icosapent ethyl should not be assumed to apply to Cod Liver Oil or Krill Oil. Dietary Fiber (Prebiotics) and Psyllium Husk may provide additional LDL reduction through effects on intestinal cholesterol and bile-acid reabsorption. Other proposed combinations, including Astaxanthin, Flaxseed Oil, Garlic, Green Tea Extract (EGCG), Lycopene, Quercetin, and Spirulina, have varying or theoretical evidence for added benefit.

Coenzyme Q10 is context-dependent: statins suppress endogenous CoQ10 synthesis, while supplementation may help exercise capacity or statin-related muscle symptoms. Discuss combinations with a prescriber or pharmacist, particularly when a product may alter statin exposure or muscle-toxicity risk.