Drug Symptomatic Therapeutics L-Glutamine Oral Powder L-Glutamine Powder Few but definitions not freely available Glutamine Oral Powder A powder form of the optically active form of glutamine having L-configuration; to be administered orally. Suggest update to description in the Drug Ontology (DRON) for "Glutamine Oral Powder" (currently no description provided). Oral administration of L-glutamine oral powder is approved by the FDA to reduce the acute complications of sickle cell disease and sickle beta zero-thalassemia in adult and pediatric patients. Glutamine Oral Powder Product Oral Glutamine SCDO (Jade Hotchkiss) Glutamine Powder