DES MOINES, Iowa (KCAU) – The Iowa Senate has approved a new medical marijuana bill that will now head to Governor Reynolds’ desk.

The bill would reduce levels of THC to 4.5 grams over a period of 90 days.This is compared to the 25 grams allowed in the previous bill, which Governor Reynolds vetoed last year.

The measure also adds PTSD and autism with self-harm to the list of illnesses covered.

The bill, HF-2589, passed the senate 32-17.

Opponents are arguing that the bill prevents many Iowans from getting the treatment they need and discriminates against minorities.