Check with your doctor if any of the following side effects continue or are bothersome:
Decreased sexual ability; dizziness or lightheadedness; drowsiness (slight); trouble in sleeping; unusual tiredness or weakness
Less Common or Rare Side Effects:
Check with your doctor if any of the following side effects continue or are bothersome:
Anxiety and/or nervousness; constipation; diarrhea; dry, sore eyes; itching of skin; nausea or vomiting; nightmares and vivid dreams; numbness and/or tingling of fingers and/or toes; stomach discomfort; stuffy nose
Always Notify Doctor:
Less Common: Breathing difficulty and/or wheezing; cold hands and feet; mental depression; shortness of breath; slow heartbeat (especially less than 50 beats per minute); swelling of ankles, feet, and/or lower legs
Rare: Back pain or joint pain; chest pain; confusion (especially in elderly patients); dizziness or lightheadedness when getting up from a lying or sitting position; fever and sore throat; hallucinations (seeing, hearing, or feeling things that are not there); irregular heartbeat; red, scaling, or crusted skin; skin rash
Withdrawal Side Effects - Notify Doctor:
Chest pain; fast or irregular heartbeat; general feeling of discomfort or illness or weakness; headache; shortness of breath (sudden); sweating; trembling
Overdose Effects - Notify Doctor:
Slow heartbeat; dizziness (severe) or fainting; fast or irregular heartbeat; difficulty in breathing; bluish-colored fingernails or palms of hands; convulsions (seizures)
Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.
Further Reading

