We report a patient with myasthenia gravis (MG) who had marked clinical ben
efit in response to treatment with mycophenolate mofetil as documented by s
erial quantitative measures of strength and muscle fatigue. Our patient had
experienced either adverse side effects or a suboptimal response to the us
ual immunosuppressive agents used in MG. Mycophenolate mofetil was used in
combination with cyclosporine and prednisone and allowed for significant re
ductions in dosage of these immunosuppressants. We conclude that mycophenol
ate mofetil deserves further study as a therapeutic agent in MG. In particu
lar, its role as a steroid-sparing agent and as a drug to be used in combin
ation immunotherapy in more severe or refractory cases of MG should be inve
stigated. (C) 2000 John Wiley & Sons, Inc.