Abstract
The clinical manifestations of the adverse effects of drugs in the oral cavity are diverse. New therapeutic agents have revolutionized the treatment of various studies focusing on the basic clinical manifestations of oral drug reactions, such as ulcers, infections, xerostomia, lichenoid reactions, pigmentation, white lesions, hyperplasia, paresthesia, osteonecrosis, angioedema, and malignancy. Dentists who provide oral health care should be familiar with these assays because they will encounter them in their practice.