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.
The 1998 paper entitled âEffects of Venlafaxine on Blood Pressure: A meta-analysis of original data from 3744 depressed patientsâ (2) shows that as long as you donât go above 300 mg per day, the rate of sustained diastolic hypertension was no higher than the rate seem with placebo (2.9% on Effexor vs. 2.3% on placebo).