Formulation methods include vaginal tablets, vaginal cream, vaginal suppository and vaginal ring. One is a topical ointment, the other a rectal suppository. A rectal suppository is administered through the anus, and into the rectum. A suppository is a solid dosage form that fits for rectal administration. A rudimentary form of "dry" enema is the use of a non-medicated glycerin suppository. Estriol is available in oral tablet, vaginal cream, and vaginal suppository forms. Paracetamol is available in a tablet, capsule, liquid suspension, suppository, intravenous, intramuscular and effervescent forms. Zinc -carnosine has been used orally or as an oral rinse, lozenge or suppository. More rarely, a vaginal suppository may be inserted prior to intercourse. A suppository is also used to cleanse the rectum of any remaining fecal matter. The first way, and the most common way, is to administer a rectal suppository. Phenylephrine hydrochloride at 0.25% is used as a vasoconstrictor in some suppository formulations. These are followed by suppository (anal or vaginal insertion), insufflation (snorting), and ingestion (swallowing). The Anusol range includes creams, ointments, and the suppository form of treatment. New technologies include transdermal, transmucosal, inhalation, and suppository supplements.