Republican lawmakers are trying to amend Arizona’s Medical Marijuana Act to make it more difficult for patients to access medication.

Their proposals include limiting which types of doctors can issue medical marijuana referrals, tightening restrictions on who can receive referrals and requiring patients to get new referrals more often.

But the proposals could conflict with the Arizona Constitution, which prevents the legislature from altering voter-approved initiatives such as the Medical Marijuana Act, which has nearly 88,000 qualified patients.

Rep. Kelly Townsend (R-Mesa), introduced House Bill 2061 to remove pregnant women from the list of patients that can qualify for medical marijuana. But in order for her bill to become law, she’ll most likely need three-fourths of the votes in both houses to amend the voter-backed Medical Marijuana Act.

Another proposal, from Rep. Jay Lawrence (R-Scottsdale), would remove physicians practicing alternative medicine such as naturopathy and homeopathy from the list of...