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Mixing supplements and medications

Is there any harm in taking dietary supplements if you use medications?

Dietary supplements and medications (prescription or over-the-counter) can be a risky combination. That’s because many dietary supplement ingredients, especially herbs and botanicals, can interact with drugs (such as ones to treat blood pressure, diabetes, depression, and anxiety) or even other dietary supplements. Interactions between drugs and supplements can result in either an increase or decrease in the effectiveness of your medications. In other words, you could be getting too much or too little of the medications that you need, which can be dangerous to your health. If you’re taking or plan to take a dietary supplement, inform your healthcare provider to make sure it’s safe to use with your medications.

Learn more about how supplements can change the effectiveness of your medications and know when drug-supplement interactions are especially important by using this interactive web resource from the National Center for Complementary and Integrative Health (NCCIH). And for information about many known interactions between dietary supplement ingredients and medications, as well as other dietary supplement ingredients, visit the Natural Medicines Comprehensive Database (NMCD).

Can I take weight-loss prescription medications?

What are the service-specific policies on weight-loss prescription medications? Read more to find out.

Weight-loss (diet) prescription medications are generally not permitted, but it’s important to check your service’s policy for specific conditions that may exist. Read this OPSS FAQ to find out more details, including links to specific policies. Also, be sure to check the OPSS site often, as we add answers to other questions about ingredients in performance-enhancing and bodybuilding supplements and how to choose supplements safely.

If you have a question about a particular dietary supplement ingredient or product, please use our “Ask the Expert” button located on the OPSS home page.

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