The NHS website

Tiotropium inhalers: a medicine to treat asthma and COPD

NHS medicines information on tiotropium inhalers – what they're used for, side effects, dosage and who can use them.

NHS medicines information on salbutamol inhalers – what they're used for, side effects, dosage and who can use them.

NHS medicines information on montelukast – what it's used for, side effects, dosage and who can take it.

NHS medicines information on mometasone inhalers – what they're used for, side effects, dosage and who can use them.

NHS medicines information on fluticasone inhalers – what they're used for, side effects, dosage and who can use them.

NHS medicines information on budesonide inhalers – what they’re used for, who can use them, side effects and dosage.

NHS medicines information on beclometasone inhalers – what they're used for, side effects, dosage and who can use them.

Find out about asthma, a common condition that affects breathing, including the symptoms, treatment and how it affects your life.

Read about bronchodilators, a medication used to treat asthma and COPD by relaxing the muscles in the lungs and widening the airways (bronchi).

Peak flow is a simple measurement of how quickly you can blow air out of your lungs. Read about why and how it's measured.