Page 47 - Pharmacology Mnemonics and Short Notes

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 Metabolism  enzyme induction and enzyme inhibition (see
pharmacokinetics)

 Excretion  Probenecid inhibits renal excretion of penicillin.
Antagonism

Antagonism

Physiological Chemical Pharmacological

non-
Competitive
competitvie

 1-Physiological
One drug has the opposite pharmacological action to another drug

while the two drugs act on different receptors

 E.g. adrenaline antagonizes the effect of histamine on blood

pressure.

 2-Chemical/Physical

One drug chemically or physically combines with another drug and
antagonizes its action

 E.g. Pralidoxime (antidote for Organophosphates) combine avidly to

Phosphorous of organophosphate avidly

 3-Pharmacological
Contents

Pharmacology Mnemonics and Short Notes By Muhammad Ramzan Ul Rehman