ive been on amitriptyline 5 days i cant take it how many days do i have to wait to go back on paxil. i went off paxil because i gained weght,but this amitripyline is making blood pressure go up panic attacks leg cramps,i have some paixil do i have to wait a day or two before starting back on it.my doctors office is closed i want to know if there is any danger to forget anitriplyline and go back on my paxil. how many days do you need to be off one before stating the other