MCAT Question of the Day
    •

    Q:

    		 Naloxone is a drug given to individuals who present in the emergency room suspected of opiate overdose (such as heroin). Naloxone acts on neurons which have opiate receptors to block the binding of the opiates in the body, thus negating their toxic effects. The drug acts quite quickly such that patients will suddenly wake up from unconsciousness upon administration. Naloxone has a halflife of around 30 minues (as compared with 4 hours for many opiates). As such, the patient may revert into the unconscious state when the naloxone effects have worn off and the opiates continue to have their effects. Which of the following types of inhibition is POSSIBLE of the naloxone-opiate receptor system?

    I. Noncompetitive inhibitor
    II. Competitive inhibitor
    III. Suicide Inhibitor
    		 

    A

    		 I only

    B

    		 II only

    C

    		 II and III only

    D

    		 I, II, and III



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