Nevada’s governor on Tuesday banned the use of anti-malaria drugs chloroquine and hydroxychloroquine to treat coronavirus patients.

Democratic Gov. Steve Sisolak’s executive order came after President Trump touted the medication as holding promise for combating the illness.

Sisolak said there was no consensus among experts or Nevada doctors that the drugs can treat people with COVID-19.

His order also limits a prescription of the medicines — which are also used to treat illnesses like lupus and arthritis — to a 30-day supply to ensure it’s available for “legitimate medical purposes” and so people don’t stockpile the drug.