Products H2 receptor antagonists were commercially available in many countries in tablet, effervescent tablet, and solution for injection forms, among others. Currently, no more drugs are available. Due to proton pump inhibitors (PPI), H2 antagonists have become less important. The first active ingredient, cimetidine (Tagamet), was developed in the 1960s and 70s under the leadership … H2 Receptor Antagonists
Products Metronidazole is commercially available in various dosage forms for systemic and topical therapy. This article refers to the film-coated tablets (Flagyl and generic). The drug has been approved in many countries since 1960. Structure and properties Metronidazole (C6H9N3O3, Mr = 171.2 g/mol) is a derivative of imidazole substituted with a nitro group, a methyl … Metronidazole
Products Tetryzoline is commercially available in the form of eye drops (Visine Classic, combination products). It has been approved in many countries since 1959. The active ingredient is also known as tetrahydrozoline. Nasal sprays or [nasal drops containing tetryzoline are currently no longer available in many countries. Structure and properties Tetryzoline (C13H16N2, Mr = 200.3 … Tetryzoline: Drug Effects, Side Effects, Dosage and Uses
Definition The best-known representative of the aromatics is benzene (benzenes), which consists of six carbon atoms arranged in a ring with angles of 120°. Benzene is usually drawn like a cylcoalkene, each with three alternating single and double bonds. However, benzene and the other aromatics do not belong to the alkenes and behave chemically differently. … Aromatics