LYCOS RETRIEVER 
Prograf: Immunosuppressants
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Prograf is the brand name for tacrolimus. You may have ... heard it called FK506. Prograf is an immunosuppressant that is used concomitantly with adrenal corticosteroids to prevent or treat rejection of your transplanted organ.
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Prograf capsules and injection contain the active ingredient tacrolimus, which is a type of medicine called an immunosuppressant. Immunosuppressants are used to dampen down the activity of cells in the immune system.
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Tacrolimus, previously known as FK506, is the active ingredient in Prograf. Tacrolimus is a macrolide immunosuppressant produced by Streptomyces tsukubaensis. Chemically, tacrolimus is designated as [3S-[3R*[E(1S*,3S*,4S*)], 4S*,5R*,8S*,9E,12R*,14R*,15S*,16R*,18S*,19S*,26aR*]] - 5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a - hexadecahydro - 5,19 - dihydroxy - 3 - [2 - (4 - hydroxy - 3 - methoxycyclohexyl) - 1 - methylethenyl] - 14,16 - dimethoxy - 4,10,12,18 - tetramethyl - 8 - (2 - propenyl) - 15,19 - epoxy - 3H - pyrido[2,1 - c][1,4] oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone, monohydrate.
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Immunosuppressants