When you can't authorize a transaction over the Internet (perhaps because you can't access the Internet, or you need an approval for a high dollar amount), you must call the cardholder's bank to get a voice authorization code. To submit a voice authorization code for a credit card transaction:
Tacrolimus (also FK-506 or fujimycin, trade names Prograf, Advagraf, Protopic) is an immunosuppressive drug used mainly after allogeneic organ transplant to lower the risk of organ rejection.
Uses. This form of tacrolimus is used on the skin to treat a skin condition called eczema (atopic dermatitis) in patients who have not responded well to (or should not use) other eczema medications. Eczema is an allergic-type condition that causes red, irritated, and itchy skin.