Asthmanefrin is an over-the-counter medication for the temporary relief of bronchial asthma, including shortness of breath, tightness of chest and wheezing. Asthmanefrin can be administered for patients ages four (4) and older. Asthmanefrin is an inhaled solution delivered to the patient via a handheld device known as an atomizer. This product is not a CFC inhaler, and presents no risk to the environment. Asthmanefrin has been used to treat asthma in children and adults for over a hundred years. When removed from the pouch, an unopened vial is in good condition for a maximum of seven (7) days. If the product is kept in the pouch, even if the pouch has been opened, it will last until the expiration date. Plastic vials are recyclable!