Despite serious safety concerns, people use periwinkle for memory and thinking, diarrhea, vaginal discharge, sore throat, and toothache, but there is no good scientific evidence to support these uses.
Uses & Effectiveness
Insufficient Evidence for
Special Precautions and Warnings
Pregnancy and breast-feeding: Periwinkle is UNSAFE. Don't use it.
Constipation: Periwinkle has a drying effect on tissues. This means it can make constipation worse. Don't use it.
Low blood pressure: Periwinkle can lower blood pressure. If you already have low blood pressure, using periwinkle can make it drop too low. Don't use it.
Surgery: Periwinkle can lower blood pressure. There is a concern that it might interfere with blood pressure control during and after surgery. Stop using periwinkle at least 2 weeks before a scheduled surgery.
Medications for high blood pressure (Antihypertensive drugs) interacts with PERIWINKLE
Periwinkle seems to decrease blood pressure. Taking periwinkle along with medications for high blood pressure might cause your blood pressure to go too low.
Some medications for high blood pressure include captopril (Capoten), enalapril (Vasotec), losartan (Cozaar), valsartan (Diovan), diltiazem (Cardizem), Amlodipine (Norvasc), hydrochlorothiazide (HydroDiuril), furosemide (Lasix), and many others.
Be cautious with this combination
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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.
This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2020.