KemPharm, Inc. today announced that the U.S. Food and Drug Administration (FDA) has granted the Orphan Drug Designation to serdexmethylphenidate (SDX), KemPharm’s proprietary prodrug of d-methylphenidate (d-MPH), for the treatment of idiopathic hypersomnia (IH), a rare neurological sleep disorder.
November 18, 2022
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