My asthma has been poorly controlled for about 11 years now. I've been referred 3 times to consultants, who have put me on all sort of combinations of drugs. Still poorly controlled.
I trained as a molecular biologist, so did some academic reading. Tiotropium is an inhaled drug designed for COPD, but has been noted to help some asthmatics. So armed with the papers, I met my GP who was happy to prescribe it.
It took a week or so to see a difference after starting, and about 2-3 weeks to be completley effective. But...Wow! I no longer wake in the night coughing myself silly. I no longer cough for hours, so to say it has changed my life is not hyperbole.
I did a bit more reading and it seems it is only effective for asthmatics with a certain genotype, which is Arg/Arg which is a type of polymorphism on the leptin receptor gene Gln223Arg . Asthmatics with this genotype have asthma which is poorly responsive to the normal drugs. Me.
I thought I'd share this, if there is anyone else who has tried everything the British National Formulary can offer, it might be worth trying Tiotropium for a month. One side effect was a dry mouth, but I've found if I wash my mouth out literally the second after I've inhaled it is better.