"i started venlafaxine 75mg sr 6 months ago. after about 3 weeks i went up to 150mg
after a few of weeks of dilated pupils, headaches, insomnia, dizziness &amp; no appetite, i definitely felt better - no more negative thought patterns &amp; meltdowns if things went wrong or work was stressful.
it did take me about 4 months for things to settle down &amp; i am now very level &amp; happy. my only advice would be to try really hard to persist with this (or any) new medication, the side effects do subside &amp; eventually should go away as long as you take the medicine exactly as prescribed &amp; don&#039;t forget it or run out. obviously some people have more tolerance for side effects but my gp was very supportive &amp; caring &amp; i am now a much happier &amp; contented person."