KROK 1 2021 – Question 99 · KROK (Medicine) · Pharmacology
A patient used an indirect-acting adrenergic agonist to treat rhinitis. After the patient has been putting in the nose drops for several days, the vasoconstrictive effect of the drug gradually diminished. Name this phenomenon:
- A. Teratogenicity
- B. Tachyphylaxis
- C. Allergy
- D. Idiosyncrasy
- E. Cumulation
Hint
Repeated use of an indirect sympathomimetic leads to a fast fall in response, because the transmitter stores in the nerve endings run out.
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