Hi Fred, and thanks for your post/question. I am hopeful others in the community will chime in and share their own personal experiences using this medication (Salbutamol).
In view of your expressed concern, I thought you might gain some additional insight from this information which focuses on Salbutamol: https://www.nhs.uk/medicines/salbutamol-inhaler/.
I do hope you find it to be helpful in a practical way.
All the best,
Leon (site moderator COPD.net)