Topping the charts

We list the world's ten biggest selling medicines in 2019 Humira (Adalimumab) remained the world's biggest selling medicine, in monetary terms, in 2019. The treatment for carious forms of arthritis, Crohn's Disease and other treatments had global sales of US$19.74 billion (Aus$26.088 bn) in 2019, according to figures collated and published by US pharmaceutical industry