Yikes! These things happen, but stopping Effexor/venlafaxine "cold turkey" whether on purpose, or accidentally, is NOT good—a previous poster on this thread had a stroke when she did this; blood pressure changes can be dramatic, motor skills can be severely impaired, or balance issues/vertigo can occur. Your pharmacist may be able to contact your doctor, or even give you some pills to tide you over. Keep calling your doctor, too. You could call a walk-in doc place to see if they will prescribe this medication if you can come in (you'll probably have to pay for an exam, first). If you have ANY pills left, try to "stretch" them out by taking them more hours apart, of if your Effexor/venlafaxine is in tablet form, cut them to take less for now while keeping the cut-off bits to make up at least some dose until you can get your prescription filled.