In Brief:
Preparation H is a brand of medications used in the treatment of hemorrhoid s. Pfizer , the maker of Preparation H, has also released the product in a suppository form, which is not as popular as the cream. The company now named Wyeth was incorporated in 1926 as American Home Products, or AHP, and "one of AHP's earliest prizes was the acquisition of a sunburn oil in 1935 that the company transformed into Preparation H, which became one of the world's best-selling hemorrhoid treatments. The Canadian formulation of Preparation H includes a yeast extract called BioDyne which has been removed from the formulation previously sold in the United States in 1995. His project is codenamed Preparation H, because Preparations "A" through "G" were failures.
