elevation of glucose by corticosteroids is counteracted by insulin is an example

1. CHEMICAL antagonism
2. competitive antagonism
3. non competitive antagonism
4. physiological antagonism

answer        physiological antagonism

REF: KAT 14E/P 25

physiological antagonism:

• it is an antagonism between endogenous regulatory pathways mediated by different receptors
• glucocorticoids and insulin act on quite distinct receptor effector systems and regulate glucose
• histamine and adrenaline act at different recptor and cause bronchoconstriction and bronchodilatation respectively

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