The weight loss drug Melanotan 2, also known as the Barbie drug, has taken social media by storm. Melanotan 2 is widely promoted online, despite it being illegal and dangerous in the UK. Amber Haque Melanotan: Dangerous 'Barbie drug' nasal spray TikTok trend prompts new TGA warning Exclusive Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Melanotan II is the product that's been dubbed the "Barbie drug" on social media, and promises to give users a tan without the sun but it can have serious side effects including, in rare cases, Doctors have warned people not to use so called 'Barbie Doll' tanning injections bought over the internet Irish Mirror Therapeutic Goods Administration cracks down on banned 'Barbie drug' Melanotan II Herald Sun