Side effects of the generic Fluvoxamine drug include, drowsiness, dizziness, diarrhea, trouble sleeping, constipation, upset stomach, dry mouth, vomiting, loss of appetite, unusual or severe mental/mood changes, increased sweating/flushing, unusual fatigue, uncontrolled movements, decreased interest in sex, black stools, blurred vision, "coffee ground" vomit, easy bruising/bleeding, unusually fast heartbeat, changes in sexual ability, painful and/or prolonged erection, change in amount of urine, tingling or numbness of the hands/feet, muscle pain, trouble swallowing, unusual swelling, seizures. Symptoms of an allergic reaction related to Fluvoxamine online include, but are not limited to, rash, itching, swelling, severe dizziness, trouble breathing.