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Doxycycline counselling — GPhC CRA MCQ

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EasyInfectionsDoxycycline counsellingGPhC CRA

A 21-year-old man is prescribed doxycycline 100 mg daily for chlamydia. He asks how to take it because he sometimes gets indigestion. What is the most appropriate alternative?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: B — Take with plenty of water while upright and avoid taking just before bed

Doxycycline can cause oesophageal irritation, so it should be taken with water while upright and not immediately before lying down. Antacids and some minerals reduce absorption. The full course should be completed as prescribed.

Reference: BNF