All companies engaged in the distribution of pharmaceutical supplements and medicines must have a drug license, commonly known as a pharmaceutical license. The Drugs & Cosmetics Act, 1940 states in Section 3(b) that "drugs" include all devices and medications for internal or external use in both humans and animals, as well as all substances proposed for use in the mitigation, treatment, diagnosis, or prevention of any disorder or disease in humans or animals. Ayurvedic and Unani drugs are now included in the definition, which was changed in 1964. To conduct business in India's pharmaceutical and cosmetic industries, a drug license is required. The Drugs & Cosmetics Act, 1940, which applies to all of India, contains a provision for this.