Have you had side effects after taking Risperdal such as male breast growth? - Risperdal lawsuits are mounting in courts around the country on behalf of men and boys who allegedly developed gynecomastia, or male breast growth, after taking the drug Risperdal. Johnson & Johnson has already settled a handful of claims as the litigation surrounding the medication continues to grow. Studies have indicated that use of Risperdal may cause male breast development. If you or a loved one experienced side effects as a result of using Risperdal, you could be entitled to serious financial compensation. Click HERE to find out more.