Fosamax, manufactured by Merck, is undergoing more scrutiny after another lawsuit was filed against Merck. This time, however, the lawsuit involved a non-jawbone injury. According to the lawsuit, the plaintiff has suffered stress fractures due to Fosamax toxicity. Fosamax belongs to the bisphosphonates family of drugs which stays in the body for 10 years. The FDA has issued a statement about the possible dangers of Fosamax and other bisphosphonates, noting that there is “the possibility of severe and sometimes incapacitating bone, joint, and/or muscle [musculoskeletal] pain in patients taking bisphosphonates.” Fosamax has been linked to osteoporosis and necrosis of the jaw which is characterized by low bone mass and structural deterioration of bone tissue, leading to bone fragility and an increased susceptibility to fractures Fosamax is another of the drugs that have caused headaches for the giant pharmaceutical company Merck. Other problematic Merck drugs include: Vioxx, Gardasil and Vytorin.