10 Common Digestive Disorders. Epigastric pain is not a serious symptom on its own. However, if it occurs with other life-threatening symptoms, it may be a sign of a condition that should receive immediate medical treatment, such as a heart attack.
SIDE EFFECTS. The most common adverse reactions of fenfluramine are drowsiness, diarrhea, and dry mouth. Less frequent adverse reactions reported in association with fenfluramine are:
The appetite suppression effects of phentermine are greatest during the initial two weeks of therapy, according to the NIH website. The exact reason for this, or even for how phentermine suppresses appetite, is unclear. Phentermine does cause altered taste sensations, constipation and dry mouth. These symptoms, along with anxiety and an increased metabolic consumption rate, may lead to loss of appetite and thus, weight loss.