Respiratory

Medicines for Obstructive sleep apnoea (OSA)

A condition where the throat repeatedly narrows or closes during sleep, interrupting breathing and causing loud snoring and daytime sleepiness — effectively treated, often with a breathing device (CPAP).

Education and reference only. This explains which medicines are used and why, in plain language — it deliberately contains no doses and is not a substitute for advice from your doctor or pharmacist. Always discuss your own treatment with a qualified clinician, and check the BNF and the product labelling for prescribing detail.

Written by Meds Global Health Clinical Team · Clinically reviewed by Dr Muhammad Suffyan, MB BS, Founder & Clinical Director · Last reviewed · How we review

Quick answer

What is Obstructive sleep apnoea (OSA)?

Obstructive sleep apnoea is a common condition in which the muscles and soft tissues of the throat relax and repeatedly narrow or block the airway during sleep, briefly interrupting breathing many times a night. Each pause causes the brain to rouse the person just enough to reopen the airway, disrupting sleep without them fully waking.

  • How it is treated: Treatment is effective and improves both symptoms and long-term health.
  • Self-care: Losing excess weight, limiting alcohol (especially in the evening), sleeping on your side, stopping smoking, and treating a blocked nose all help.
  • When to seek help: See a GP about loud snoring with pauses in breathing, gasping in sleep, or excessive daytime sleepiness, for referral to a sleep service.

What it is

Obstructive sleep apnoea is a common condition in which the muscles and soft tissues of the throat relax and repeatedly narrow or block the airway during sleep, briefly interrupting breathing many times a night. Each pause causes the brain to rouse the person just enough to reopen the airway, disrupting sleep without them fully waking. Typical features include loud snoring, gasping or choking noises in sleep, pauses in breathing witnessed by a partner, and — importantly — excessive daytime sleepiness, poor concentration and low mood. It is more common with being overweight, in men, and with a larger neck. Untreated, it is linked to high blood pressure, heart problems and accidents from sleepiness, so it is worth diagnosing.

How it is treated

Treatment is effective and improves both symptoms and long-term health. Weight loss (where relevant), reducing alcohol especially in the evening, sleeping on the side, and stopping smoking all help. The main treatment for moderate to severe OSA is a CPAP machine — a device that gently blows air through a mask to keep the airway open during sleep, which is very effective at relieving symptoms. Some people benefit from a custom mouthpiece (mandibular device) that holds the jaw forward, and occasionally surgery is considered. Because daytime sleepiness affects driving, this is discussed and, where relevant, reported. Diagnosis usually involves a sleep study.

For this condition, these medicines

Medicine classes used for Obstructive sleep apnoea (OSA)

Each links to a full, dose-free guide — what it is, how it works, who can and cannot use it, side effects, interactions and FAQs.

Beyond medication

Lifestyle and self-care

Losing excess weight, limiting alcohol (especially in the evening), sleeping on your side, stopping smoking, and treating a blocked nose all help. Using treatment such as CPAP consistently is key to the benefits.

When to get help

When to see a doctor

See a GP about loud snoring with pauses in breathing, gasping in sleep, or excessive daytime sleepiness, for referral to a sleep service. Sleepiness affecting driving should prompt prompt assessment and following DVLA guidance.

999Emergency — call 999 or go to A&E
111Urgent advice — call NHS 111 or use 111 online
GPNon-urgent — see your GP or pharmacist

Not sure how urgent it is? It is always OK to call NHS 111 for advice, day or night.

Answers

Obstructive sleep apnoea (OSA): frequently asked questions

What is the main treatment for sleep apnoea?

For moderate to severe obstructive sleep apnoea, a CPAP machine — which gently blows air through a mask to keep the airway open during sleep — is very effective. Weight loss and lifestyle changes also help, and a mouthpiece suits some people.

Why does sleep apnoea matter beyond snoring?

Untreated, it causes daytime sleepiness (a driving and accident risk) and is linked to high blood pressure and heart problems, so diagnosis and treatment improve both symptoms and long-term health.

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Sources

Where this is drawn from

  • NICE NG202 — Obstructive sleep apnoea/hypopnoea syndrome
  • NHS — Obstructive sleep apnoea

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