Yes I to am on effexor 150mg my doctor prescribed this over two years ago after meeting with me maybe twice and to me i always thought it was weird to start me off with such a high dose. But i figured because he is the doctor what did i know. I\'ve tryed to stop taking the pills but the longest i can go without without major affects is three days then im dizzy and nauseous its horrible and ive gained a good 100lbs since ive been on the medication. I know now that i really need help..