The two low-dose forms of the drug Premarin (containing 0.3 or 0.45 mg of conjugated estrogens) manufactured by Wyeth for hormone replacement therapy are approved by the Food and Drug Control Administration (FDA) for the prevention of postmenopausal osteoporosis. Tablets quantity of 10 pieces in plates put in cardboard packs. Possess biconvex and oblong shape without risks. They are treated with a white shell on one side of which is the inscription VALTREX. The drug Valtrex is an antiviral agent. Producing countries - Spain, Poland. The active substance, valacyclovir, penetrates the affected cell, interacts with enzymes, and is inserted into the pathogen's DNA.