1 The vast majority of people will never have an anaphylactic reaction. 2  The most common causes of anaphylaxis include drugs, such as penicillin, insect stings, foods (peanuts, shellfish), X-ray dye, and latex. 3  The symptoms of anaphylaxis may vary and can include hives, tongue swelling, vomiting, and even shock.
The recommended starting dose for prolonged-release venlafaxine is 75 mg given once daily. Patients not responding to the initial 75 mg/day dose may benefit from dose increases up to a maximum dose of 375 mg/day. Dosage increases can be made at intervals of 2 weeks or more.
venlafaxine induced serotonin syndrome has also been reported when venlafaxine has been taken in isolation in overdose an abortive serotonin syndrome state in which some but not all of the symptoms of the full serotonin syndrome are present has been reported with venlafaxine at mid range dosages 150 mg per day