CBD oil
Since February 2021, pharmacies have been allowed to sell CBD oil, also known as cannabidiol, over the counter in Australia. It's a schedule 3 drug, which means you'll need to speak to the pharmacist themselves in order to purchase it. The most common brand of CBD oil is Epidyolex, and it's typically used as a secondary treatment for seizures. There are some other touted benefits to CBD oil, but this is the main one you'll hear about. Cannabidiol is one of only two types of medicinal cannabis registered by the Australian Register of Therapeutic Goods (ARTG).
Important: CBD oil won't get you high, as it has no THC (tetrahydrocannabinol).