receptor for longer . periods of time , thus counteracting the effect of depression . Iproniazid and phenelzine are two such drugs .
Barbituric acid and its derivatives viz . veronal , amytal , nembutal , luminal , seconal are known as barbiturates . Barbiturates are hypnotic , i . e ., sleep producing agents .
Equanil is used to control depression and hypertension .
Non-hypnotic chlorodiazepoxide and meprobamate are relatively mild tranquilizers suitable for relieving tension .
Analgesics
Medicines used for getting relief from pain are called analgesics . These are of two types :
1 . Narcotics
Drugs which produce sleep and unconsciousness are called narcotics . Mhese are habit forming drugs . For example , morphine and codeine . Morphine diacetate is commonly known as heroin .
2 . Non-narcotics
These are non-habit forming chemicals which reduce mild to moderate llatn such as headache , toothache , muscle and joint pain , etc . These are also termed as non-addicti , ve . These drugs do not produce sleep unconsciousness . Aspirin ( 2-acetoxybenzoic acid ) is most commonly used analgesic with antipyretic properties . Now these days because its antiblood clotting action , aspirin is widely used to heart-attacks .