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.
Effexor is the brand name for venlafaxine, a prescription antidepressant that is also used in treatment of conditions such as generalized anxiety disorder. Though each patient responds differently to Effexor, there are some established average dosage guidelines that doctors typically follow.he average general Effexor dosage ranges from 125 to 150 mg per day, according to the U.S. Food and Drug Administration. Generic instant and extended-release tablets and capsules are available.