Beta-2 agonists
Beta-2 agonists can affect other muscles as well as the lungs, which can lead to possible side effects.
The most common side effects of beta-2 agonists are nervousness, restlessness and trembling. Some people also find they get a dry, irritated throat after using the medication.
Less common side effects include:
- muscle cramps
- a rapid or irregular heartbeat
- headaches
- coughing
- skin rash
- sleep problems
All side effects should resolve quickly and disappear completely once you have been using the medicine for a few days or weeks. Contact your GP if they do not go away, as your dosage may need to be changed.
Anticholinergics
Compared with beta-2 agonists, anticholinergics are better tolerated by most people, and serious side effects are rare.
A dry mouth is the most commonly reported side effect.
Less common side effects include:
- nausea
- coughing
- headaches
- constipation
- palpitations (sensation of a pounding or racing heart)
- not being able to urinate
- skin rash
- blurred vision
Theophylline
Theophylline can cause serious side effects if too much of it builds up in your body. You will need regular blood tests to ensure that the levels of theophylline in your body are safe.
Older people are more at risk of developing side effects from theophylline because their liver may not be able to remove the medicine from their body.
Possible side effects of theophylline include:
- a rapid heart beat
- trembling and palpitations
- restlessness and nervousness
- nausea
- headaches
- dizziness
- sleep problems
- seizures (fits)
If you have any of these side effects, contact your GP as your dose will need to be reviewed.
