FORMULAZIONI FARMACEUTICHE A BASEDI ARECOLINA E SIMILI,LORE PREPARAZIONE ED IMPIEGO NEL TRATTAMENTO DI DISTURBI DELLA MEMORIA

A device for the transdermal administration of a drug for the treatment of memory impairment comprising: (a) a drug impermeable backing layer; (b) a drug permeable rate controlling membrane sealed to one side of said backing layer as to define at least one drug reservoir compartment therebetween; (c) an adhesive layer; (d) a drug or composition thereof within said hollow drug reservoir; said drug comprising a memory improving effective amount of a compound having the formula (I) wherein R1 is OH, lower alkoxy, or NR3R4; and each of R2, R3 and R4 is independently H or lower alkyl; said composition comprising said drug and at least one pharmaceutically acceptable adjunct; whereby said drug is delivered in a controlled, continuous manner to a patient to which said device has been applied.