KROK 1 2016 – Question 145 · KROK (Medicine) · Pharmacology
Local anesthetics (novocaine, lidocaine and others) decreases pain sensitivity of tissues by blocking Na+ and K+ ions from permeating membranes of nerve fibers and endings. Such mechanism of drug action is called:
- A. Receptor
- B. Direct chemical
- C. Enzyme
- D. Membrane ionic
- E. Antienzyme
Hint
Consider what the anesthetic actually binds to in the nerve fibre and how that kind of target is used to classify mechanisms of drug action.
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