Pre-pregnancy, it is important to optimise control of your asthma. During pregnancy you should be closely monitored so that appropriate changes to treatment can be quickly implemented in response to any changed symptoms. In general, asthma inhalers are believed to be safe in pregnancy and the risk of harm to the foetus is much greater from having undertreated and poorly controlled asthma. Roughly one third of women find that their asthma improves during pregnancy, one third find that it stays the same, and the final third find that it worsens.
It’s common to worry about side effects from the medicines we take. But recent research has shown that the chance of side effects from taking a low dose of inhaled preventer medicine is very small. It's worth remembering that the preventer dose will be kept as low as possible to protect you or your child against the inflammation that causes asthma symptoms. Using it every day, as prescribed, means you’re less likely to need your reliever inhaler or a prescription of oral steroid tablets which will mean higher doses of steroids.