Founded more than 50 years ago, Mission Pharmacal develops, tests and manufactures proprietary drugs. Mission Pharmacal has directed much of its resources to the research and development of therapeutics and diagnostic procedures for the treatment and prevention of kidney stone disease. The company s flagship brand, CITRACAL UltraDense calcium citrate, has been cited in numerous clinical studies and has led to the development and marketing of LITHOSTAT for the treatment of chronic urea-splitting urinary infections, THIOLA for the prevention of cystine stone formation and UROCIT-K for the treatment of recurrent nephrolithiasis and uric acid lithiasis. Mission Pharmacal over-the-counter products include CALCET, for the prevention of leg cramps; FOSFREE, a phosphorous-free iron, calcium, and multivitamin supplement, and THERA-GESIC, a greaseless creme for relief of muscle aches and pains. The company maintains its headquarter operations in San Antonio and a research and development facility in Walsdorf, Texas.