Taisho Pharmaceutical Holdings Co., Ltd., through its subsidiaries, researches, develops, manufactures, markets, distributes, and sells over-the-counter (OTC) drugs and prescription pharmaceutical products in Japan and internationally. It operates through Self-Medication Operation Group and Prescription Pharmaceutical Operation Group segments. The Self-Medication Operation Group segment offers OTC drugs, quasi-drugs, food products, and general medical and hygiene supplies, such as Lipovitan series of energy drinks; the Pabron series of cold remedies and sinus treatments; the RiUP series of hair re-growth treatment products; the Taisho Kampo series of gastrointestinal treatment products; the Colac series of laxative products; the Naron series and other products for antipyretic analgesics; the Preser series of hemorrhoid treatment products; Hapacol, Efferalgan, Dafalgan, and Tempra for antipyretic analgesics; Counterpain topical anti-inflammatory analgesics; Vitacilina, a dermatological treatment product; and VICKS, a cough suppressant throat lozenges and medicated drops.