Verkkobefore trying a switch to effexor or prozac (fluoxetine) from 100mg pristiq, it's probably wise to go down to 50mg pristiq first, or 25mg if possible. Verkkoa community to discuss pristiq (desvenlafaxine), an antidepressant used to improve mood, feelings, and energy. The prescription medication is a serotonin. Verkkostopping pristiq too quickly can cause withdrawal symptoms like dizziness, tremors, confusion, tingling sensation, and headaches. Verkkoa community to discuss pristiq (desvenlafaxine), an antidepressant used to improve mood, feelings, and energy. The prescription medication is a serotonin. Verkkoi am on 450mg of desvenlafaxine (pristiq) + 100 mg of lamotrigine (lamictal). I also take 300 mg of bupropion. I don't have any i'll affects, but found. Learn about side effects, warnings, dosage, and. Verkkoi do believe the seroquel is for sleep. However, i do believe it works for anxiety and depression at low doses as well. I will eventually go up to 50 mg per. Verkkoa community to discuss pristiq (desvenlafaxine), an antidepressant used to improve mood, feelings, and energy. The prescription medication is a serotonin. Verkkoa community to discuss pristiq (desvenlafaxine), an antidepressant used to improve mood, feelings, and energy. The prescription medication is a serotonin. Verkkohe gave me 3 weeks of 50mg samples and prescribed 3 weeks of prozac. To be taken concurrently. At the end of 3 weeks i stopped both cold turkey.