More than 100 Risperdal lawsuits have been filed alleging that the drug caused gynocomastia, a condition in which breasts develop in males and young children. Risperdal is an antipsychotic medication manufactured by Janssen Pharmaceuticals, which is owned by Johnson & Johnson.
As many as 25% of gynocomastia cases are estimated to be caused by medications such as Risperdal. In some cases, gynocomastia can be accompanied by breast milk production in young children and men. This development is due to overdevelopment of the hormone prolactin, which can last for more than two years after Risperdal use stops.
Risperdal was approved by the U.S. Food and Drug Administration in 1993, but the drug was often prescribed for off-label uses such as ADD in children. Risperdal lawsuits against Janssen Pharmaceuticals are likely to grow as patients come forward with more Risperdal side effects.