When doctors decide which drugs to prescribe, the most important criterion is often not how well they work, their side effects or their prices.

Doctors, who ultimately decide what drugs to prescribe, also do not have to worry about paying for the treatments they choose.

If you smoke or if you use drugs not prescribed by your doctor, quit.

The type of tension headache you have may help your doctor decide which drug to prescribe.

A result, she said, is that the anti-psychotic drugs prescribed for them get lost and there is no continuity of therapy or special education.

This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors.

Doctors decide which drugs to prescribe, based on information from many sources.

A drug prescribed for conditions other than those approved by the FDA.

For example, in 2007 researchers studied every published trial on statins, drugs prescribed to reduce cholesterol levels.

They contend that it would be a "dangerous precedent" for Congress to start telling them which drugs to prescribe.