Curcumin may interact with anticoagulant and antiplatelet medications. If you are pregnant or lactating or have any history of liver, gall bladder or gastrointestinal problems, or if you are taking these medications, consult a health practitioner prior to use.
According to Herbal Remedies
Turmeric also interferes with drugs that reduce stomach acids, since it actually increases its production. As a result, it can cause stomach pain, bloating, nausea, and damage on the esophagus. These drugs include: Famotidine (Pepcid), Cimetidine (Tagamet), Ranitidine (Zantac) and Omeprazole.
Additionally, its anti-thrombotic properties are beneficial, but if you take blood-thinning medications, they can be dangerous and increase the risk of bleeding. Turmeric should therefore not be used if you take medications like aspirin, warfarin (Coumadin), and clopidogrel (Plavix).
Turmeric is possibly dangerous if taken in combination with drugs for diabetes, since it strengthens their effects, and might lead to excessively low blood sugar levels.
The side-effects, in this case, involve blurred vision, anxiety, shakiness, delirium and reduced cognitive function.
In somecases, turmeric may also cause an allergic reaction, and outbreaks like rashes and hives. In case you experience allergic symptoms, make sure you lower the amount of turmeric you are taking, or replace it with some other natural remedy.
