Antidepressants may increase the risk of suicidal thoughts or actions in children, teenagers, and young adults. However, depression and certain other mental problems may also increase the risk of suicide. Talk with the patient’s doctor to be sure that the benefits of using Effexor XR extended-release capsules outweigh the risks.

Families and caregivers must closely watch patients who take Effexor XR extended-release capsules. It is important to keep in close contact with the patient’s doctor. Tell the doctor right away if the patient has symptoms like worsened depression, suicidal thoughts, or changes in behavior. Discuss any questions with the patient’s doctor.

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  • Effexor
  • Note: This page contains information about the side effects of venlafaxine. Some of the dosage forms included on this document may not apply to the brand name Effexor XR.

    Common side effects of Effexor XR include insomnia, dizziness, headache, weakness, drowsiness, anorgasmia, constipation, nausea, nervousness, delayed ejaculation, decreased appetite, xerostomia, anorexia, and diaphoresis. Other side effects include abdominal pain, vasodilatation, tremor, hypertension, blurred vision, visual disturbance, impotence, weight loss, anxiety, increased serum cholesterol, diarrhea, vomiting, decreased libido, abnormal dreams, increased dream activity, and yawning. See below for a comprehensive list of adverse effects.
  • Effexor XR (venlafaxine hydrochloride) capsule, extended release General dosage information for the active ingredient contained in Effexor XR: Venlafaxine (oral tablet, oral capsule, extended release, oral tablet, extended release) Other Effexor formulations: Effexor (venlafaxine hydrochloride) tablets Please confirm that the medication forms on the dosage document(s) above are relevant for the specific drug you are interested in.