Neurology
Medicines for Cluster headache
One of the most severe headache disorders, causing excruciating one-sided pain around the eye in bouts or clusters, with treatment aimed at stopping individual attacks fast and preventing them while a cluster lasts.
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.
Quick answer
What is Cluster headache?
Cluster headache is an uncommon but extremely painful headache disorder. Attacks bring excruciating, strictly one-sided pain centred around or behind one eye or the temple, and on that same side there are usually striking autonomic features: a red and watering eye, a runny or blocked nostril, a drooping or swollen eyelid, and sometimes sweating on the face.
- How it is treated: Management has two separate goals: stopping each attack quickly, and reducing how often attacks happen while a cluster is active.
- Self-care: During an active bout it helps to avoid known triggers — particularly alcohol, which can provoke an attack within the cluster period — to keep regular sleep patterns, and to make sure abortive treatment such as oxygen or an injectable or nasal triptan is to hand so an attack can be tackled the moment it starts.
- When to seek help: Cluster headache should be assessed by a doctor, and referral to a neurologist is usual to confirm the diagnosis and set up treatment, including a supply of high-flow oxygen.
What it is
Cluster headache is an uncommon but extremely painful headache disorder. Attacks bring excruciating, strictly one-sided pain centred around or behind one eye or the temple, and on that same side there are usually striking autonomic features: a red and watering eye, a runny or blocked nostril, a drooping or swollen eyelid, and sometimes sweating on the face. Unlike many people with migraine, who prefer to lie still in the dark, people having a cluster attack are typically restless and agitated and may pace about. Individual attacks come on quickly, are relatively short-lived, and can strike several times a day, often at the same times or waking the person from sleep. They tend to occur in bouts known as clusters that last weeks to months, separated by long pain-free remission periods, though some people have a chronic form with little or no respite. Because the pain is so severe and the pattern distinctive, cluster headache needs to be recognised correctly and distinguished from migraine and from other causes of one-sided facial pain.
How it is treated
Management has two separate goals: stopping each attack quickly, and reducing how often attacks happen while a cluster is active. Because individual attacks build and pass so fast, ordinary painkiller tablets are too slow to help — fast-acting treatments are needed instead. A triptan given by injection or nasal spray, rather than as a tablet, is a mainstay for aborting an attack, and high-flow oxygen breathed through a special mask is an effective non-drug treatment that can settle an attack for many people. To prevent attacks during a bout, a preventer is usually started and continued for as long as the cluster lasts; verapamil, a calcium-channel blocker, is the most commonly used and needs heart monitoring with regular ECGs because it can affect the heart's rhythm. A short, reducing course of a corticosteroid is sometimes used as a bridge to settle a bad bout quickly while a longer-term preventer takes effect. Because the diagnosis and these treatments need careful handling, cluster headache is generally managed with specialist neurology input, and the plan is tailored to whether the pattern is episodic or chronic.
For this condition, these medicines
Medicine classes used for Cluster headache
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.
Symptom checker
Symptoms that can point to Cluster headache
Cluster headache can be one cause of these symptoms. Each guide explains the other possible causes and the red-flag warning signs that mean you should get urgent help:
Beyond medication
Lifestyle and self-care
During an active bout it helps to avoid known triggers — particularly alcohol, which can provoke an attack within the cluster period — to keep regular sleep patterns, and to make sure abortive treatment such as oxygen or an injectable or nasal triptan is to hand so an attack can be tackled the moment it starts.
When to get help
When to see a doctor
Cluster headache should be assessed by a doctor, and referral to a neurologist is usual to confirm the diagnosis and set up treatment, including a supply of high-flow oxygen. Seek urgent medical assessment for a first or sudden severe (thunderclap) headache, any headache with new neurological symptoms such as weakness, confusion, problems with speech or vision, a stiff neck with fever, or a headache after a head injury — these need to be checked promptly to rule out a serious cause rather than assumed to be cluster headache.
Not sure how urgent it is? It is always OK to call NHS 111 for advice, day or night.
Answers
Cluster headache: frequently asked questions
What medicines are used for cluster headache?
Treatment has two parts. To stop an attack quickly, a triptan is given by injection or nasal spray (tablets are too slow), and high-flow oxygen breathed through a mask is an effective non-drug option. To prevent attacks during a bout, verapamil — a calcium-channel blocker — is the usual preventer and needs heart monitoring with ECGs, and a short reducing course of a corticosteroid may be used as a bridge. These are usually arranged with specialist neurology input.
How is cluster headache different from migraine?
Both can be severe, but the patterns differ. Cluster headache pain is strictly on one side, centred around the eye, with a red, watering eye and a blocked or runny nostril on that side, and people are typically restless and pacing. Attacks are short, strike several times a day and come in bouts. Migraine attacks usually last longer, often come with nausea and dislike of light and sound, and people tend to want to lie still in a dark room.
Does oxygen really help, and is it a medicine?
High-flow oxygen breathed through a special mask is one of the most effective ways to settle a cluster attack for many people, and it is a treatment rather than a drug taken by mouth. Because it needs the right equipment and flow, it is arranged through a specialist as part of the treatment plan rather than something to set up at home on your own.
How long do cluster periods last?
In the common episodic form, attacks occur in bouts (clusters) that typically run for some weeks to months, followed by long pain-free remission periods that can last months or years. A smaller number of people have a chronic form, where attacks continue with little or no remission. Knowing which pattern applies helps guide how long preventer treatment is continued.
Keep reading
Related articles
Sources
Where this is drawn from
- NICE CKS: Cluster headache.
- Brain & Spine Foundation / Headache UK: Cluster headache.
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