Solution:Antidoteantiseptic (N.): a substance
that stops or slows down the growth of microorganisms: रोगाणुरोधक
Serum (N.): a clear liquid that can be separated from clotted blood : रस; रक्तोद
Antidote (N.): a thing which destroys the effect of poison: विषहर औषध
• Quinine is a natural antidote for malaria.