If you are currently being treated with any of the following medications, you should not use turmeric or curcumin in medicinal forms without first talking to your healthcare provider.

Blood-Thinning Medications
Although no scientific reports have documented a bleed or other adverse interaction, turmeric, taken in medicinal doses may theoretically increase the blood thinning effects and, therefore the risk of bleeding from, drugs such as warfarin and aspirin.

Non-Steroidal Anti-inflammatory Drugs (NSAIDs)
Turmeric has shown protection in animals from the development of ulcers due to this class of medications. NSAIDs include indomethacin, ibuprofen, and many other drugs that are often prescribed for pain and inflammation, such as that of arthritis.

Reserpine
Turmeric protected animals from increased gastric secretions (secretions in the stomach that can lead to damage along the walls of this organ) from reserpine used for high blood pressure.