I've suffered from asthma all my life, and I can confirm what you say. Albuterol is an inocuous drug; it works directly in the lungs and has virtually zero systemic effects, which makes it far preferable to epinephrine or norepinephrine, which are both available without prescription and have distinctive and sometimes dangerous cardiovascular effects. I'd estimate that over the course of the past 25 years I've gone through about one thousand albuterol inhalers, and never received anything other than the effect for which the drug was intended. Albuterol, in my opinion, is a wonder drug that has enabled millions of people, especially kids, to lead normal lives. Denying a puff to someone suffering from an asthma attack would be tantamount to refusing CPR to someone whose heart had stopped.