Belviq Side Effects: Headache, Low Blood Sugar, Fatigue, and More. What are the side effects of Belviq (lorcaserin hydrochloride), a drug manufactured by Arena Pharmaceuticals of Switzerland for obese and overweight adults?
According to the U.S. Food and Drug Administration which recently approved the drug, the most common Belviq side effects are as follows: headache, dizziness, fatigue, nausea, dry mouth, and constipation, and in diabetic patients are low blood sugar (hypoglycemia), headache, back pain, cough, and fatigue.
A less common but a serious side effect of the drug is serotonin syndrome and, according to the FDA, it may also cause “disturbances in attention or memory”.
The probability that a patient will exhibit serotonin syndrome increases if he/she also takes medicines, such as those used to treat depression or migraine, that increase serotonin levels or activates his/her serotonin receptors.
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