Becareful, this medication has a LONG half life, and thus a cumulative effect...it also potentiates other drugs ...particularly benzo's and narcotics....I was taking elavil 150mg/day (prescribed for pain management) the max dose, and had my first surgery....and ended up comatose for 2 days, because the large dose of elavil potentiated the IV narcotics, & anesthetics used in surgery....so build up slowly & don't play with the dose without medical supervision...it also has the potential for cardiac toxicity...i.e. can KILL your heart muscle....so if you take it at high doses, you need specific tests to be run intermittently to monitor function....