Side Effects

Serious Side Effects from Effexor XR:

• Rash
• Hives
• Itching
• Difficulty breathing or swallowing
• Irregular or pounding heartbeat
• Seizures
• Unusual bruising or bleeding
• Eye pain or redness
• Hallucinations

Less Serious Side Effects from Effexor XR:

• Drowsiness
• Fatigue
• Headache
• Nightmares
• Nausea or vomiting
• Heartburn
• Dry mouth
• Loss of appetite
• Yawning
• Changes in sexual desire or ability

Precautions

• You should tell your doctor if you are pregnant, breastfeeding, or plan to become pregnant.
• Talk with your doctor about your medical history. Discuss your current medications, as well as any ongoing medical issues. Your doctor will want to know if you have high blood pressure, high blood cholesterol, glaucoma, seizures, or heart disease. Tell your doctor if you have a family history of heart, kidney, liver, or thyroid disease.
• Tell your doctor if you have ever abused illegal drugs or prescription medications.
• Effexor XR is not usually prescribed for people under the age of eighteen.

Important Information During Use:

• Effexor XR can cause drowsiness, especially when you first start taking the drug. You should learn more about how the drug affects you before driving or operating heavy machinery.
• In a small number of people, some antidepressants make depression worse or increase thoughts of suicide. Tell your doctor if you notice any of these symptoms.
• The risk of serious, even fatal, effects from an Effexor XR overdose is greater than with most antidepressants. Don’t mix Effexor XR with excessive alcohol or recreational drugs.
• If you forget a dose, do not double your next dose to make up for the difference. Never take more than one dose of Effexor XR in a day.