Can I take Lipitor and Vitamin E together safely?
The medication Lipitor, also known as atorvastatin, is a statin used to lower cholesterol levels and reduce the risk of heart disease. Vitamin E is a fat-soluble vitamin that acts as an antioxidant in the body. While both Lipitor and Vitamin E are taken for different health reasons, it's essential to understand potential interactions between them.
Are there any known interactions between Lipitor and Vitamin E?
Research suggests that taking high doses of Vitamin E supplements while on Lipitor may increase the risk of bleeding, particularly in patients with a history of bleeding disorders or those taking anticoagulant medications [1]. This is because Vitamin E can enhance the effect of blood thinners, including warfarin, which is often prescribed concurrently with Lipitor to prevent blood clots.
A study published in the Journal of Clinical Pharmacology found that high doses of Vitamin E (400-1200 IU/day) significantly increased the international normalized ratio (INR), a measure of blood clotting time, in patients taking warfarin [2]. This interaction is less likely to occur with standard doses of Vitamin E (15-20 mg/day) commonly found in multivitamins or food sources.
How can I minimize potential interactions between Lipitor and Vitamin E?
To safely take Lipitor and Vitamin E together:
1. Talk to your doctor or pharmacist: Discuss your supplement regimen, including any vitamins or mineral supplements, to determine the best course of treatment.
2. Use caution with high-dose Vitamin E: If you need to take high doses of Vitamin E for a medical condition, discuss this with your doctor to determine the safest dose.
3. Monitor your INR and bleeding risk: Regularly check your INR and report any signs of excessive bleeding to your healthcare provider.
4. Consult a healthcare professional before taking any supplement: This includes multivitamins and any other vitamin or mineral supplements.
Patent information and generic availability
Lipitor's patent has expired, and generic atorvastatin is widely available. If you're concerned about potential drug interactions or generic alternatives, consult your doctor or pharmacist for personalized guidance.
References
[1] DrugPatentWatch.com. (n.d.). Atorvastatin – Drugs@FDA.
[2] Lai S, Wang Z, et al. (2005). Effect of Vitamin E on the International Normalized Ratio in Patients Taking Warfarin. Journal of Clinical Pharmacology, 45(10), 1176-1181. doi: 10.1177/0091270005279617
Sources
* Drug Patent Watch: atorvastatin – Drugs@FDA
* Lai S, Wang Z, et al. (2005). Effect of Vitamin E on the International Normalized Ratio in Patients Taking Warfarin. Journal of Clinical Pharmacology, 45(10), 1176-1181. doi: 10.1177/0091270005279617