Tweet. There are no known adverse reactions between Plavix (Clopidogrel) and eating grapefruit, or drinking grapefruit juice. Furthermore, there is no sufficient evidence that illustrates grapefruit juice, or the fruit itself would interfere with the effectiveness of Plavix.
Other, more minor side effects include constipation, headache, dry mouth and insomnia (because the chemicals in these drugs also influence sleep patterns). Herbal diet pills, even though they're all natural, can have potentially dangerous side effects depending upon their ingredients.
Depending on the type, prescription sleeping pills may include side effects such as: 1  Dizziness or lightheadedness. 2  Headache. 3  Gastrointestinal problems, such as diarrhea and nausea. 4  Prolonged drowsiness, more so with drugs that help you stay asleep.5  Severe allergic reaction.epending on the type, prescription sleeping pills may include side effects such as: 1  Dizziness or lightheadedness. 2  Headache. 3  Gastrointestinal problems, such as diarrhea and nausea. 4  Prolonged drowsiness, more so with drugs that help you stay asleep.