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.
Duloxetine, as well as other prescribed psychotropic medications, are given out with an information pamphlet that indicates risks and usages. Some side effects, while taking Cymbalta and the generic Duloxetine, include dizzy spells, upset stomach, dry mouth, sleepiness, lack of appetite, fatigue and sweating.