Your doctor will tell you how often you
need to use your inhaler. The effect of this medicine may be noticeable
after a few days but will only reach its maximum after a few weeks. This
medicine must be used regularly to be effective, so go on taking it
even if you don't have any symptoms. That means it’s doing its job. If
you stop taking it your asthma and chronic obstructive pulmonary
disorder (COPD) may get worse. It should not be used to relieve sudden
asthma attacks. If an asthma attack occurs, use your quick-relief
inhaler (reliever). To get the benefit from this medicine you need to
make sure you get your inhaler technique right, otherwise, it does not
work as well.
The most common side effects are nausea, vomiting,
respiratory tract infection, fungal infections in the mouth, headache,
hoarseness of voice, sore throat, cough, musculoskeletal (bone, muscle,
or joint) pain, and increased heart rate. If you get there, do not stop
taking it but do talk to your doctor. You can help prevent some of these
symptoms by rinsing your mouth and throat with water or brushing your
teeth after using your inhaler. There are other, rarer side effects that
can be serious. Talk to your doctor if you're worried about them. In
general, you should be trying to avoid situations that make your asthma
worse (your triggers) and try not to smoke.
Ask your doctor
whether it’s safe to take this medicine if you're pregnant or
breastfeeding. Before taking it, you should tell your doctor if you have
any kidney or liver diseases so that your doctor can prescribe a
suitable dose for you.