The Imaginary Invalid is a three-act comedie-ballet by the French playwright Moliere with dance sequences and musical interludes by Marc-Antoine Charpentier. It premiered on 10 February 1673 at the Theatre du Palais-Royal in Paris and was originally choreographed by Pierre Beauchamp. The play criticizes the doctors and pharmacists practices in the time of Moliere where they used to diagnose, mostly, rich people with diseases they are not infected with in order to make fortune.