Other breath-activated inhalers are also called dry powder inhalers. These inhalers do hamiş contain the pressurised inactive gas to propel the medicine. You don't have to push the canister to release a dose. Steroids sevimli be classified based on their chemical composition.[52] One example of how MeSH performs this classification https://jsfiddle.net/snowsquash9/gxa70tqo/