Novo Nordisk and GoodRx announced a partnership this week to sell products Ozempic and Wegovy at half their normal cost to patients who pay for the medications with cash. Starting this week, customers will be able to buy a month’s supply of Novo Nordisk’s semaglutide pen products for $499 through GoodRx.

GoodRx will offer the GLP-1s for $499 a month, the lowest-ever out-of-pocket cost for the weight-loss medications.

GoodRx offers coupons for reduced prescription drug prices at retail pharmacies. The company says patients will be able to use GoodRx to self-pay for both Ozempic and Wegovy at the $499-per-month price at 70,000 U.S. retail pharmacies.