Catalogue of side effects for the medication Effexor - generic name Venlafaxine - an antidepressant sometimes prescribed for use in the treatment of bipolar disorder and other mental illnesses.
Common Side Effects:
Check with your doctor if any of the following side effects continue or are bothersome:
Abnormal dreams; anxiety or nervousness; chills; constipation; diarrhea; dizziness; drowsiness; dryness of mouth; heartburn; increased sweating; loss of appetite; nausea; stuffy or runny nose; stomach pain or gas; tingling, burning, or prickly sensations; trembling or shaking; trouble in sleeping; unusual tiredness or weakness; vomiting; weight loss
Less Common Side Effects:
Check with your doctor if any of the following side effects continue or are bothersome:
Change in sense of taste; muscle tension; yawning
Always Notify Doctor:
More Common: Changes in vision, such as blurred vision; decrease in sexual desire or ability; headache
Less Common: Chest pain; feeling of fast or irregular heartbeat; mood or mental changes; ringing or buzzing in ears
Rare: Convulsions (seizures); itching or skin rash; lightheadedness or fainting, especially when getting up suddenly from a sitting or lying position; lockjaw; menstrual changes; problems in urinating or in holding urine; swelling; talking, feeling, and acting with excitement and activity you cannot control; trouble in breathing
This medicine may also cause the following side effect that your doctor will watch for:
More Common: High blood pressure
Withdrawal Side Effects - Notify Doctor:
Changes in dreaming; dizziness; dryness of mouth; headache; increased sweating; nausea; nervousness; trouble in sleeping; unusual tiredness or weakness
Overdose Effects - Notify Doctor:
Agitation; convulsions (seizures); drowsiness; extreme tiredness or weakness; fast heartbeat; tingling, burning, or prickling sensations; trembling or shaking
Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.
Further Reading
