hismanal

Astemizole

Products Astemizole was commercially available in tablet and suspension form (Hismanal). It has been withdrawn from the market in many countries because of potential adverse effects and is no longer available (see below). It may well be replaced by other, better-tolerated antihistamines, such as cetirizine, loratadine, and fexofenadine. Structure and properties Astemizole (C28H31FN4O, Mr = … Astemizole

Market Withdrawal of Drugs

Why is the distribution of medicines discontinued? Drugs are subject to a product life cycle. They are discovered, patented, developed, approved, marketed and, in some circumstances, withdrawn from the market years to decades later. Often, distribution is discontinued due to commercial considerations. For example, the cost of approval and production exceeds the revenue from sales. … Market Withdrawal of Drugs