More common side effects may include:
Dry mouth, fatigue, headache, sleepiness
Less common or rare side effects may include:
Abdominal discomfort or pain, abnormal dreams, agitation, anxiety, back pain, blurred vision, breast enlargement, breast pain, bronchitis, change in salivation, change in taste, chest pain, confusion, conjunctivitis (pinkeye), constipation, coughing, coughing up blood, decreased sensitivity to stimulation, decreased sex drive, depression, diarrhea, difficult or labored breathing, difficulty concentrating, difficulty speaking, discoloration of urine, dizziness, dry hair, dry skin, earache, eye pain, fainting, fatigue, fever, flushing, gas, general feeling of illness, hair loss, hepatitis, hiccups, high blood pressure, hives, hyperactivity, impotence, increased appetite, increased or decreased eye tearing, increased sweating, indigestion, inflammation of the mouth, insomnia, irritability, itching, joint pain, laryngitis, leg cramps, loss of appetite, loose stools, low blood pressure, memory loss, menstrual changes, migraine, muscle pain, nasal congestion or dryness, nausea, nervousness, nosebleeds, palpitations, rapid heartbeat, rash, ringing in ears, seizures, sensitivity to light, sinus inflammation, skin inflammation, sneezing, sore throat, stiffness, stomach inflammation, swelling, thirst, tingling, toothache, tremor, twitching of the eye, upper respiratory infection, urinary changes, vaginal inflammation, vertigo, viral infection, vomiting, weakness, weight gain, wheezing, yellow eyes and skin