Do doctors of osteopathy usually pracrice allopathic medicine

Yes doctors do practice allopathic medicine.

Definition of Osteopathy

os·te·op·a·thy ˌästēˈäpəTHē / nouna branch of medical practice that emphasizes the treatment of medical disorders through the manipulation and massage of the bones, joints, and muscles.

explanation of Allopathic Medicine

Allopathic medicine is an expression commonly used by homeopaths and proponents of other forms of alternative medicine to refer to mainstream medical use of pharmacologically active agents or physical interventions to treat or suppress symptoms or pathophysiologic processes of diseases or conditions.