Summary Primatene Mist inhalers provide temporary relief from mild, intermittent asthma symptoms. They are the only OTC ...

Primatene MIST faces future challenges as its key patent ... fall soon to the same fate and would come as no surprise. As for new and future products, Amphastar pointed to REXTOVY (nasal naloxone ...

Amphastar Pharmaceuticals Inc (AMPH) reports a 6% revenue increase, driven by record Primatene Mist sales, despite facing competitive and logistical hurdles.