Ther-Rx Corporation (Ther-RX Corp.) is engaged in the development and distribution of Innovative specialty healthcare products such as one-dose vaginal anti-infective products. The company is the wholly owned subsidiary of KV Pharmaceuticals. It makes use of advanced drug-delivery technologies of its parent company to create medications. These provide advantages such as improved compliance, reduced dosing regimen and medications. Its product Evamist is the only estradiol transdermal spray available in market towards the treatment of moderate-to-severe vasomotor symptoms due to menopause. The company is headquartered in Bridgeton, the US.