Which of the following histamine blockers has no effect on muscarinic receptors______________?

Related Mcqs:

Adrenaline can be given in all of the following situations except_______________?

A. Asthma B. Myocardial infarction C. Shock D. Anaphylaxis...

Which of the following exerts its major systemic pharmacological action when administered orally_____________?

A. Insulin B. Chloral hydrate C. Procaine D. Streptomycin...

Which drug is not acetylated ?

A. Metaclopramide B. INH C. Dapsone D. Hydralazine...

Toxic optic neuropathy can be caused by all of the following EXCEPT_______________?

A. Ethambutol B. Ethylene glycol C. Ciprofloxacin D. Tetracycline...

H antagonists are effective in the therapy of all the following except______________?

A. Common cold B. Systemic anaphylaxis C. Motion sickness D. Parkinsonism...