Several “widely used” medications, including antipsychotics and osteoporosis drugs commonly prescribed to the elderly, are the focus of new lawsuits. The litigation stems from allegations of covering up associated side effects, according to a New York Times report.

Specifically, the lawsuits are targeting the antipsychotic Seroquel; the hormone replacement therapy Prempro; and the osteoporosis treatment Fosamax. Seroquel has links with weight gain and increased risk for diabetes; Fosamax has been linked with severe jaw decay; and Prempro has a link with increased risk for breast cancer, according to clinical trial data submitted to the Food and Drug Administration.

According to plaintiffs’ lawyers, drug makers “hid early indications of the side effects and improperly marketed their medicines,” the Times reports.