preparation H

Indications

• used in treatment of hemorrhoids

Mechanism of action

several formulations

• water-based gel vs petroleum jelly-based
• suppositories use a base of cocoa butter
• active ingredients variable
  • simple moisturizers with witch-hazel astringent
  • preparations containing phenylephrine, pramoxine, &/or hydrocortisone

More general terms

• topical agent