While there are some common side effects associated with venlafaxine, it is important to remember that your doctor prescribed this medication because they believe that its ability to balance your mental health outweighs any adverse effects it may cause.
There are, however, some common side effects you may experience while taking venlafaxine. These may include:
Muscle tightness, weakness, and/or lack of energy
Burning, numbness, and/or pain in part of the body
Insomnia, yawning, drowsiness, and/or nightmares
Burping, nausea, and/or vomiting
Stomach pain, gas, constipation, frequent urination, difficulty urinating, and/or diarrhea
Loss of appetite, and/or weight loss
Tremors, and/or twitching
Sweating, hot flashes, and/or flushing
Ringing in the ears
Changes in sexual ability and desire
Some side effects may be serious. Call your doctor immediately if you experience any of the following: loss of consciousness, hallucinations, difficulty with coordination, fever, sweating, confusion, severe muscle stiffness, fast or irregular heartbeat, chest pain, pain or redness of the eyes, unusual bruising, bleeding, or small purple spots on the skin, seizures, itching, hives, rash or difficulty breathing or swallowing.
This is not a complete list of side effects. For more information on adverse effects you may experience while taking venlafaxine, please visit the National Institutes of Health’s DailyMed webpage.