Tokyo, Feb 19 (ANI): Japanese manufacturing firms are adopting practices that protect the environment. Otsuka Pharmaceuticals, located in Kakegawa of Japan's Shizuoka prefecture, produces Pocari Sweat, an electrolyte beverage. Since its launch in 1980, Pocari Sweat has become popular among people of all ages. The company has expanded its product lineup to include a variety of convenient cans and PET bottles. To keep the environment safe, Otsuka Pharmaceutical focuses on reducing the weight of containers, especially the 500ml PET bottles, which are widely consumed in Japan. Pocari Sweat is now available in a container whose weight has been reduced from 27g to 18g.