Some homeopaths are qualified registered doctors, but all other registered homeopaths have a basic knowledge of conventional medications and are careful with the management of clients who are taking conventional medications.

Ideally, the homeopath prefers to treat clients who are not taking any other medication. This permits the full range of symptoms to emerge, some of which might have been masked or suppressed by drug therapy. If it is dangerous to withdraw a drug, it can be continued together with the homoeopathic medicine and then gradually withdrawn (in consultation with the prescribing physician) as the condition improves.