Bio-Tech Pharmacal Inc.,P.O. Box 1992,Fayetteville, AR 72702,USA,Phone.: 479 + 443 9148,Fax: 479 + 443 5643 Blansett Pharmacal Co., Inc.,P.O. Box 638,North Little Rock, AR 72115,USA,Phone.: 501 + 758 8635,Fax: 501 + 758 5369