What Effexor XR Side Effects Should I Watch For?
Effexor Side Effects (venlafaxine side effects):
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor as soon as possible if any of the following effexor side effects occur:
More common
Changes in vision, such as blurred vision; decrease in sexual desire or ability; headache
Less common
Chest pain; 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
Symptoms of overdose
Agitation; convulsions (seizures); drowsiness; extreme tiredness or weakness ; fast heartbeat; tingling, burning, or prickling sensations; trembling or shaking
Effexor xr side effects may also include high blood pressure.
What are the most common venlafaxin side effects and the percentage of people reporting them during clinical trials?
Effexor Side effects - Patients
Nausea 37%
Headache 25%
Sleepiness 23%
Dry mouth 22%
Dizziness 19%
Insomnia 18%
Constipation 15%
Nervousness 13%
Raised blood pressure 13%
Fatigue 12%
Sweating 12%
Decreased appetite 11%
Male sexual dysfunction 12%
Female sexual dysfunction 2%
Other effexor side effects may occur that usually do not need medical attention. These side effects of Effexor may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following effexor xr side effects continue or are bothersome:
More common
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
Change in sense of taste; muscle tension ; yawning
After you stop using Effexor XR, your body may need time to adjust. The length of time this takes depends on the amount of medicine you were using and how long you used it. During this period of time check with your doctor if you notice any of the following effexor side effects:
Changes in dreaming; dizziness; dryness of mouth; headache; increased sweating; nausea; nervousness; trouble in sleeping; unusual tiredness or weakness.
Other side effects of Effexor not listed above may also occur in some patients. If you notice any other Effexor XR side effects, please check with your doctor !
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