Immediately call your doctor if the following side effects appear. Cough, hoarseness, Sleepiness, drowsiness, Trouble sleeping, Ringing in ears, Runny nose, Shakiness of limbs, Sore throat, Sweating, Tingling or trembling of hands and feet, Unusual bleeding or bruising, Crying, Delusions, Dementia, Depersonalization, Diarrhea, Difficult or labored breathing, Dysphoria, Euphoria, Fever, chills, Discomfort, illness, Headache, Joint pain, Loss of appetite, Lower back or side ache, Muscle aches and pains, Nervousness, Nausea, vomiting, Painful or difficult urination, Paranoia, Pinpoint red spots on the skin, Black tarry stools, Bleeding gums, Bloating or swelling of the face or limbs, Confusion, Rapid weight gain, Changing moods, Shivering