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Dapivirine was mixed with the film excipient mixture (composed of propylene glycol PVA, HPMC, and PEG8000) and stored at 30°C/65% relative humidity (RH), 40°C/75% RH or 50°C. Dapivirine drug content was determined using a UPLC method. No loss of dapivirine was observed after 14 days storage in the three storage conditions.
