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Drug that binds to a receptor and inteferes with other drugs or substances from producing a drug effect.
Nonprescriptions, over-the-counter (OTC) drug
Drug that can be purchased without the services of a physician
Drug for which dispensing requires, a written or phone order that can only be issued by or under the direction of a licensed physician
Drug effect other than the therapeutic effect that is usually undesirable but not harmful.
Site of Action
Location within the body where a drug exerts its therapeutic effect, often a specific drug receptor.
Undesirable drug effect that implies drug poisoning; can be very harmful or life-threatning.
Patented propietary name of a drug sold by a specific drug manufacturer; also referred to as the brand name.
Drugs with high abuse potential and no accepted medical use (Heroin, hallucinogens, marijuana; these drugs are not to be prescribed)
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