Also known as (4-Amino-1-Hydroxybutylidene)Bisphosphonic Acid and Alendronic Acid
Alendronic acid (INN) or alendronate sodium (USAN) — sold as Fosamax by Merck — is a bisphosphonate drug used for osteoporosis and several other bone diseases. It is marketed alone as well as in combination with vitamin D (2,800 IU and 5600 IU, under the name Fosamax+D). Merck's U.S. patent on alendronate expired in 2008 and Merck lost a series of appeals to block a generic version of the drug from being certified by the U.S. Food and Drug Administration (FDA).Source: Wikipedia
Patients are most commonly prescribed alendronate to treat osteoporosis, bone disorder, rheumatoid arthritis, and polymyalgia rheumatica.
Patients taking alendronate most commonly experience side effects like abdominal pain, pain, and flatulence.