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Alzheimer's disease treated with large doses of vinpocetine (60 mg per day) for one year.
Vinpocetine can cause some side effects including stomach pain, nausea, sleep disturbances, headache, dizziness, nervousness, and flushing of the face.
Special Precautions & Warnings:Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking vipocetine if you are pregnant or breast feeding. Stay on the safe side and avoid use.
Bleeding disorders: Don't use vinpocetine if you have a problem with blood clotting because it might increase the risk of bleeding.
Weakened immune system: Vinpocetine might weaken the immune system in some people. This might reduce the body's ability to fight infections. If you already have a weakened immune system due to other conditions such as HIV/AIDS or cancer treatment, check with your healthcare provider before using vinpocetine.
Surgery: Vinpocetine might slow blood clotting. There is a concern that it might increase the risk of bleeding during and after surgery. Stop using vinpocetine at least 2 weeks before you are scheduled for surgery.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.