A patient is prescribed venlafaxine 37.5 mg daily for 7 days, increasing by 37.5 mg every week until a maximum daily dose of 225 mg is reached. A total of 8 weeks treatment must be dispensed. You...

A patient is prescribed venlafaxine 37.5 mg daily for 7 days, increasing by 37.5 mg every week until a maximum daily dose of 225 mg is reached. A total of 8 weeks treatment must be dispensed. You supply your total stock of 84 venlafaxine 37.5 mg tablets.
How many tablets are still owed to the patient?