Doctors are allowed to prescribe controlled substances for medical purposes, like morphine, codeine and Valium.

After a drug is approved for one purpose, doctors often prescribe it for other purposes.

Under the proposed rules, doctors would prescribe drugs for purposes other than those explicitly approved by the Food and Drug Administration.

He'd faint if you suggested he prescribe a dram of brandy on a cold night 'for medicinal purposes'.

Once a drug is approved for any purpose, a doctor can prescribe it for other purposes at his discretion.

Cannabis, prescribed for medical purposes, would also be subject to licensing and other control measures under the international drug control treaties.

Although they are helped to meet expenditure through grants from central government, their monies are prescribed for specific purposes.

He acquired the Quaaludes through a pharmacist connection, as well as the cocaine, which at the time could be prescribed for medical purposes.

She was cleared when she gave testimony that tablets which police found in her purse were prescribed to her for medical purposes.

It should be prescribed for well-defined, limited purposes and require a continuing medical-psychiatric process of review.