Amphastar Pharmaceuticals, Inc. announced that Primatene® MIST has been launched. Primatene® MIST is an epinephrine inhalation aerosol bronchodilator suspension, which is the only FDA-approved metered dose inhaler (MDI) for asthma in the over-the-counter (OTC) market in the United States. Primatene® MIST is now available nationwide at Walgreens stores and online at Walgreens and CVS. It will also be available nationwide at CVS stores by mid-January. The Company is currently building additional inventory to provide Primatene® MIST to more pharmacy chains and big box retail stores in the coming months.