In APAC, the Erythromycin Price Index rose quarter-over-quarter in Q1 2026, driven by surging feedstock costs. Erythromycin is a macrolide antibiotic widely used to treat bacterial infections, including respiratory tract, skin, soft tissue and eye infections. It is manufactured as an active pharmaceutical ingredient (API) and incorporated into tablets, capsules, topical formulations and injectable medicines. The global Erythromycin market is influenced by pharmaceutical deman