Possible side effects of grapefruit seed extract include nausea, vomiting, a swollen or painful tongue, and burning in the mouth, stomach or throat, according to Allina Health. Patients who experience allergy symptoms su... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

As of December 2015, there are no side effects associated with using cherry extract, according to WholeHealthMD.com. When taken in small doses, it is possibly safe to use over a short amount of time, but is likely unsafe... More »

www.reference.com Health Medications & Vitamins Side Effects

Some possible side effects from taking bilberry extract include upset stomach, dry eyes and dry mouth. Those who take this may also experience allergic reactions, states Drugs.com. More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

Some side effects of progesterone suppositories (or progesterone vaginal) include allergic reactions, as evidenced by hives; difficulty breathing and swelling in the face, throat or mouth; headache; numbness, especially ... More »

Common side effects of vitamin B-6 supplementation include nausea, drowsiness, headache, and tingling or mild numbness, according to eMedicineHealth. More serious side effects include tiredness, clumsiness in the hands, ... More »

www.reference.com Health Medications & Vitamins Vitamins & Supplements

Serious side effects of niacin include nausea, vomiting, skin flushing combined with dizziness, light headedness and fainting, according to Everyday Health. Niacin may cause other serious side effects, such as uneven or ... More »

Common side effects of diphenhydramine citrate include drowsiness, dizziness, stomach upset, blurred vision, and dryness in the mouth, nose or throat. More serious side effects include mental changes, such as restlessnes... More »

www.reference.com Health Medications & Vitamins Side Effects