Myasthenia gravis is a muscle disease which results from autoimmune destruction of the nicotinic acetylcholine receptors. Patients with myasthenic has resistance to depolarizing muscle relaxants and usually increased sensitivity to nondepolarizing relaxants. A new agent sugammadex binds to steroid structured rocuronium and vecuronium and vanishes their affects.In this article presented usage of sugammadex for patients who are planned;one adult and one pediatric, timectomy.