CNS OTC Flashcards
what are the types of headaches?
- Migraine
- Tension headache
- Sinusitis
- Cluster headaches
- Temporal arteritis
- Trigeminal neuralgia
- Chronic daily headache
- Medication overuse
what is a migrane?
•Migraine is a complex neurological condition with a wide variety of symptoms.
•It is is characterized by moderate or severe headaches
which are commonly, but not always unilateral.
•The headache is often described as throbbing or
pulsating in nature.
what are the key features that support the diagnosis of a migrane?
nausea and
vomiting, photophobia, phonophobia and disability.
how do you classify a migrane?
–Migraine without aura –Migraine with aura •Typical aura •Hemiplegic migraine •Migraine with brainstem aura •Ocular migraine •Silent migraine –Chronic migraine –Menstrual migraine
what are the symptoms of a migrane without aura>
•Recurrent headache disorder where attacks last 4–72 hours
•Headache is unilateral location, pulsating quality, moderate or severe intensity and aggravated by
physical activity
•Association with nausea, vomiting and/or photophobia
and phonophobia.
•Relief from lying in a darkened room
•No neurological symptoms
–No Aura
what are the symptoms of migrane with aura?
Transient, unilateral neurological symptoms of visual, sensory or other central nervous system symptoms that
usually develop gradually.
•Occurs 5-20 minutes before the headache.
–Visual aura: flashing lights, scotoma or zigzag lines (photopsia)Sensory aura: Unilateral tingling or numbness, in the lips, fingers, face or hands and occasionally have difficulty in speaking (dysphasia)
•Prodromal and post-dromal phases can occur
•Neurological symptoms usually precede the headache
•More common in women
what are the 5 phases of a migrane?
1-premonitory stage 2- aura 3- headache or main attack stage 4- resolution 5-recovert or postdrome stage
what are triggers for a migrane?
•Diet: crash diet, irregular meals, cheese, chocolate,
red wine, tyramine containing foods, dehydration
•Environmental: Smoking, bright lights, screen use,
loud noise, strong smells
•Psychological: Depression, anxiety, stress, anger,
tiredness
•Medicines: HRT and COC
•Other: menstruation, shift patterns and
menopause
what are the treatment options OTC for an acute migrane?
•Simple analgesia
•Anti-emetics
•Migraine specific treatment
–Serotonin (5-HT1) agonists or ‘Triptans’
why would you give anti-emetics in migrane treatment?
•Gastric stasis is slowed in migraine
–Nausea/vomiting and reduced medication absorption
•Migraleve pink
–Combination product - Codeine, paracetamol and
Buclizine (anti-emetic)
•Buccastem M Buccal
–Prochlorperazine 3mg
•Previously diagnosed migraine and adults (>18 years old)
how do triptans work?
- They work by imitating the action of 5-HT.
- 5-HT causes the dilated blood vessels to constrict.
- Include:almotriptan,naratriptan, sumatriptan, zolmitriptan
- Often included 1st line alongside simple analgesia and anti-emetics (if required) in mod-severe migraine.
- Reduce the pain of migraine within two hours
- They can reduce photophobia and photophonia.
what is the availible triptan OTC?
Sumatriptan
•Imigran recovery – OTC
what criteria is required to supply sumatriptan?
•Age 18 years to 65 years.
•Migraine must be diagnosed by a doctor or pharmacist
•Established pattern of migraine with/without aura
–History of five or more migraine attacks occurring over a
period of at least one year.
•Simple analgesics tried and ineffective.
what cauiouns would you have for sumatriptan?
Concomitant use: –SSRI/SNRI –St John’s wort (Hypericum perforatum) –combined oral contraceptives •Heart disease risk factors (contraindicated in patients who have three or more risk factors i.e. diabetes, high cholesterol levels, smoking/use of NRT).
what contraindications are there for OTC treatmemt?
•Aged under 18 years or over 65 years.
•Pregnant or breastfeeding.
•Patients with three or more cardiovascular risk factors.
•Those aged 50 years or over and experiencing migraine
attacks for the first time.
•Patients who had their first ever migraine attack within
the previous 12 months.
•Patients who have had fewer than five migraine attacks
in the past.
•Patients who do not respond to treatment.
•Patients who have a headache (of any type) on 10 or
more days per month.
•Women with COC
Potentially suitable for OTC sumatriptan but referral is
required for evaluation and management.
•Migraine headache lasts for longer than 24 h
•Patients who experience four or more attacks per
month
how should you take sumatriptan?
•Dose - one 50mg tablet; should be taken as soon as possible
–It should be taken at the start of the headache and notat the start of the aura (unless the aura and headache start simultaneously).
•A second dose can be taken at least 2 h after the first if
symptoms come back.
–A second dose should be taken only if the headache
responded to the first dose.
•Don’t take more than two tablets in 24 hours.
•Don’t take more than two tablets for the same attack.
what are the prescribed treatments for migranes?
Triptans of varying formulation
•Preventive/prophylactic treatments
when should you consider preventative treatment?
•Migraine attacks are having a significant impact on quality of life
and daily function,.
•Acute treatments are either contraindicated or ineffective.
•The person is at risk of MOH due to frequent use of acute drugs.
•Includes: amitriptyline, propranolol, topiramate and others off
license.
what counselling advise should you give for migranes?
•Keep a headache diary to identify triggers –Avoid triggers once known •Immediate use of simple analgesia •Dark and quiet environment room •Good sleep hygiene •Diet and fluid intake •COCs •Cold compress –OTC kool and soothe strips