Pharmacology mcqs (final control) 3rd course

= Rimantadine

~ Acyclovir
~ Didanozine
215- Tick the drug, inhibiting viral reverse transcriptase:

= Zidovudine

~ Vidarabine
~ Rimantadine
~ Gancyclovir
216- Tick the drug, inhibiting viral proteases:
~ Rimantadine
~ Acyclovir

= Saquinavir

~ Zalcitabine
217- Tick the drug of choice for herpes and cytomegalovirus infection treatment:
~ Saquinavir
~ Interferon alfa
~ Didanozine

= Acyclovir

218- Tick the drug used for influenza A prevention:
~ Acyclovir

= Rimantadine

~ Saquinavir
~ Foscarnet
219- All of the following antiviral drugs are the analogs of nucleosides, EXCEPT:
~ Acyclovir
~ Zidovudine

= Saquinavir

~ Didanozine
220- Tick the drug, a derivative of adamantane:
~ Didanozine

= Rimantadine

~ Gancyclovir
~ Foscarnet
221- Characteristics of phentolamine include all of the following EXCEPT:
~ Reduction in peripheral resistance

= Stimulation of responses to serotonin

~ Tachycardia
~ Stimulation of muscarinic, H₁ and H₂ histamine receptors
222- The principal mechanism of phentolamine-induced tachycardia is:

= Antagonism of presynaptic alfa₂ receptors enhances norepinephrine release, which causes cardiac stimulation via unblocked beta receptors

~ Baroreflex mechanism

~ Direct effect on the heart by stimulation of beta₁ receptors
~ Inhibition of transmitter reuptake at noradrenergic synapses

223- Nonselective alfa-receptor antagonists are most useful in the treatment of:

~ Asthma
~ Cardiac arrhythmias