Side effects that may occur while taking this medication include: Constipation, Coughing, Diarrhea, Dryness of mouth, Headache, Heartburn, Nausea, Sleepiness or unusual drowsiness, Unusual tiredness or weakness, Weight gain Some other side effects may include: Restlessness, Agitation, Increased saliva, Vomiting, Trouble urinating, Stomach pain, Vision problems, Muscle or joint paint, Increased appetite, Anxiety, Breast enlargement, Late or missed menstrual periods, Decreased sexual ability, Dry or discolored skin If any of these side effects persist or worsen, seek immediate medical help. In case of major side effects, report to your doctor immediately. These can include: Faintness, Unusual body movements, Sweating, Fever, Stiff muscles, Seizures, Hives, Itching, Shuffling walk, Difficulty breathing or swallowing, Long-lasting and painful erection
