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.