We need to classify drugs in different ways because different drugs are effective against the particular micro-organism responsible for the disease. Drugs can be classified in the following ways:
(i) on the basis of pharmacological effect.
(ii) On the basis of action on a particular biochemical process.
(iii) On the basis of chemical structure.
(iv) On the basis of molecular targets.
Amino acid serine, aspartic acid and phenylalanine are present on the active site of an enzyme. Explain which forces may be involved in bonding the drug to the enzyme if the drug inhibits the holding of the substrate on the active site of the enzyme.
With the help of examples, explain how do following type of drugs functions?
(i) Analgesics
(ii) Antacids
(iii) Antifertility drugs
Low level of noradrenaline is the cause of depression. What type of drugs are needed to cure this problem? Name two drugs.