Unlicensed weight loss drugs marketed on social media as 'prizes' Weight loss drugs The Guardian Australians who use tanning products containing 'melanotan' are at risk of serious health problems. These products include nasal sprays and other injectable and ingestible tanning products, and are being illegally promoted and Say No to Nasal Tanning Sprays Dermatology Times What is Melanotan II, the drug that consumers are urged to avoid?