Very few people taking beclometasone tablets have serious side effects.

You're more likely to have a serious side effect if you take a higher dose of steroids for a long time (more than a few months).

Serious side effects

Call your doctor or call 111 now if you get:

a high temperature, chills, a very sore throat, ear or sinus pain, a cough, more mucus (phlegm) or a change in colour of your mucus, pain when you pee, mouth sores or a wound that will not heal – these can be signs of an infection
a puffy, rounded face (moon face), and weight gain in your upper back or tummy – these can be signs of Cushing's syndrome
feeling or being sick (nausea or vomiting), very bad dizziness or passing out, muscle weakness, feeling very tired, loss of appetite and weight loss – these can be signs of adrenal gland problems
changes in your eyesight, such as blurred vision or a cloudy lens in your eye – these can be signs of increased pressure in your eyes (glaucoma) or a cataract

You may notice mood and mental health changes while taking beclometasone tablets.

Call your doctor or call 111 now if you have any mood changes, including:

feeling depressed
feeling high, or moods that go up and down
feeling anxious, having problems sleeping, difficulty in thinking, or being confused and losing your memory
feeling, seeing or hearing things that do not exist (hallucinations)
having strange and frightening thoughts, changing how you act, or having feelings of being alone

The higher the dose, the more intense the mood changes can be.

Do not drive to A&E. Ask someone to drive you or call 999 and ask for an ambulance.

Bring all the medicines you take with you.

It happens rarely but it's possible to have a serious allergic reaction (anaphylaxis) to beclometasone.

your lips, mouth, throat or tongue suddenly become swollen
you're breathing very fast or struggling to breathe (you may become very wheezy or feel like you're choking or gasping for air)
your throat feels tight or you're struggling to swallow
your skin, tongue or lips turn blue, grey or pale (if you have black or brown skin, this may be easier to see on the palms of your hands or soles of your feet)
you suddenly become very confused, drowsy or dizzy
someone faints and cannot be woken up
a child is limp, floppy or not responding like they normally do (their head may fall to the side, backwards or forwards, or they may find it difficult to lift their head or focus on your face)

You or the person who's unwell may also have a rash that's swollen, raised, itchy, blistered or peeling.

These can be signs of a serious allergic reaction and may need immediate treatment in hospital.

Do not drive yourself to A&E.

The person you speak to at 999 will give you advice about what to do.

Other side effects

These are not all the side effects of beclometasone. For a full list, check the leaflet inside your medicine packet.

You can report any suspected side effect using the Yellow Card safety scheme.