Storage: Store at 20 - 25??C (68 - 77??F); excursions permitted to 15-30??C (59-86??F) [see USP Controlled Room Temperature] in a dry place and protect from light. 17 PATIENT COUNSELING INFORMATION See FDA-approved patient labeling (Medication Guide). 17.1 Rash Prior to initiation of treatment with Lamotrigine, the patient should be instructed that a rash or other signs or symptoms of hypersensit