“…Caffeine is mainly used as first‐line treatment in Europe and the USA, while in Japan, theophylline is approved, caffeine is not approved, and doxapram is contraindicated. The effectiveness of caffeine, theophylline, and doxapram seems to be comparable in the short‐term treatment of AOP . There is currently a need, however, for differentiation of AOP therapeutic agents, taking into account not only the alleviation of apnea but also adverse reactions, secondary benefits to infant patients, and so forth.…”