Effexor XR (venlafaxine hydrochloride) is a medicine intended for the treatment of depression, generalized anxiety disorder, social anxiety disorder and some other conditions of the kind that may affect the quality of your life by causing unpleasant symptoms. Effexor XR represents the extended-release form of the medicine, so it is supposed to be taken once a day. Never combine Effexor XR with any drugs before talking to your health care provider, especially if those are MAO inhibitors. At east 14 days are supposed to pass between a dose of Effexor XR and a MAO inhibitor you have taken or intend to take. You need to take this medicine with some food and make sure you take it regularly even if you do not feel the benefits at start. It may take you several weeks to see the first benefits of the treatment. The following side effects are possible when taking Effexor XR: dizziness, weight loss, nervousness, blurred vision, sleepiness, insomnia, sweating, nausea, vomiting, constipation, weakness, anxiety, and dry mouth. You will need to report these side effects only of they get bothersome or severe and interfere with your everyday life and usual activities. If you have an episode of mania (excitement and high energy for no reason), this may be a serious side effects of taking Effexor XR. If you are feeling depressed - this may be yet another episode related to the treatment. You will need to inform your health care provider of all the episodes of this kind. Although this drug is not expected to form a habit, you may get withdrawal symptoms if you stop taking it suddenly. Make sure you take Effexor XR for as long as prescribed, but never exceed the dose recommended - as this is not a way to get better results. Consult your doctor if you think you need to start any of the following medications and intend to take them simultaneously with Effexor XR: other antidepressants, weight-loss products, narcotic painkillers, sleep aids, antipsychotic medicines, and tranquilizers. Any other prescription or over-the-counter drugs you may want to take also need to be discussed with your health care provider to make sure you are getting the full benefits from your treatment without suffering from any unpleasant side effects caused by interactions. Pregnant women are not supposed to take this medicine, as a baby may suffer withdrawal symptoms at birth and later on if Effexor XR is taken shortly before delivery. Make sure you never take this drug during pregnancy and avoid breastfeeding without talking to your doctor first. An overdose of this medicine can be lethal with the following symptoms displaying: rapid or slow heartbeat, sleepiness, coma, seizures, vertigo, and low blood pressure. Seek emergency medical help if you think you may have overdosed. Store this drug in a tightly closed container in some place where it will be out of the reach of children and other people to whom it was not prescribed. You are responsible for keeping this medicine in a safe place and preventing others from abusing it.