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DCPA Migraine Pharm
Question | Answer |
---|---|
HA pathology | Vasoconstriction then massive Vasodilation |
Migraine age | Begins between 10-30 y.o. (After this = something else) |
Migraine FH | 50% |
Migraine S&S | (+/-)Aura (anorexia, visual field changes, sensitiivty (sound, light, smell), N/V, worse with physical exertion, unilateral or generalized throbbing pain. |
Red flags of HA | Syncope, Mental change, vision loss, recent trauma, stiff neck, fever, thunder-horrific pain |
HA triggers | Caffeine, period, red wine, cheese, processed meats, hypoglycemia, change in sleep patterns, decrease in exercise, smoking & strong odors |
Limit caffeine intake | Less than 240mg/day or 2 cups |
Acute Migraine Tx | Analgesics, Ergot derivatives, Triptans, Antiemetic drugs, Opiods & Barbituates |
Chronic Migraine Tx | Beta blockers, Calcium channel blockers, anticonvulsants, Herbs |
Analgesics SE | Rebound HA: 3 doses in 1 week |
Midrin | Sympathomimetic (vasoconstriction) + sedative + analgesic |
Midrin - type of HA | Tension & migraine |
Midrin CI | CAD, MI, HTN, GI bleed, liver or renal dz. |
Midrin SE | Sedation or dizziness |
Ergot Derivatives Brands | Cafatine, Cafergot, Ercaf |
Ergot Derivatives "level of use" | NOT 1st line - have good malpractice insurance |
Ergot Derivatives Form | oral or suppository |
Ergot Derivatives MOA | Suppresses neurogenic inflammation (vasoconstriction) |
Ergot Derivatives CI | Sensitivity to ergotamine & caffeine, peripheral vascular dz., renal/liver dz., MI/CAD, Pregnancy |
Ergot Derivatives Pregnancy Category | X |
Ergot Derivatives SE | Tachycardia, arterial spasm, claudification, numbness in fingers/toes, drowsiness, dizziness, N/V, diarrhea |
Ergotism - Over dose | Sever vomitting/cramps. Numbness. Twitching-seizures. Renal failure (no urine). |
Ergot Derivatives DI | Nicotine, caffeine & grape fruit |
Ergot Derivatives Increases toxicity of... | Propanolol, Erythromycin, Macrolide Ab. |
Triptans | Specific Serotonin 5-HT1 agonist |
Triptan Drugs | Sumatriptan (Imitrex), Zolmitriptan (Zomig), Naratriptan (Amerge), Rizatriptan (Maxalt), Almotriptan (Axert), Electriptan (Relpax), Frovatriptan (Frova) |
Sumatriptan | Imitrex |
Zolmitriptan | Zomig |
Naratriptan | Amerge |
Rizatriptan | Maxalt |
Almotriptan | Axert |
Eletriptan | Relpax |
Triptans MOA | 5HT1-Vasoconstriction. Affects trigeminal nerve. |
Sumatriptan (Imitrex) Use | Stops migrain pain, allodynia, & improves migrain-induce cognitive impairment. |
Triptans SE | Rebound HA (2 doses/week), dizziness, Hot flashes, Parestesias, diaphoresis, throat/chest tightness |
Triptans CI | Ischemic Dz, HTN, Pregnancy |
Triptans Pregnancy Category | C |
Triptans DI | MAOIs, ergotamines, SSRIs |
Sumatriptan (Imitrex) forms | Oral, Melt, Injection (best with N/V) |
Rizatriptan (Maxalt) Forms | Orals or melts |
Rizatriptan (Maxalt) DI | Propanolol (Doubles level of Maxalt) |
Rizatriptan (Maxalt) Effectiveness | Very effective with Nausea |
Naratriptan (Amerge) Duration | Longer duration - 6 hours |
Naratriptan (Amerge) Recurrence Rate | Low |
Naratriptan (Amerge) Onset | Slower - better for patients with long lasting HA |
Naratriptan (Amerge) Effectiveness | Best with migrains associated with PMS |
Frovatriptan | Frova |
Frovatriptan (Frova) Half Life | 26-30 hours |
Eletriptan (Relpax) SE | Low SE profile |
Treximet | Combination of Sumatriptan (Imtrex) & Naproxen Sodium (Aleve) |
Antiemetic Drugs | Metoclopramide (Reglan) |
Metoclopramide | Reglan |
Metoclopramie (Reglan) other uses | GERD |
Metoclopramie (Reglan) MOA | Blocks dopamine receptors |
Metoclopramie (Reglan) Forms | Injectiong, tablet, syrup, solution |
Metoclopramie (Reglan) CI | GI obstruction, perforation, hemorrhage |
Metoclopramie (Reglan) SE | Restlessness, drowsiness, diarrhea, weakness, dystonic reactions (muscle spasms/rigidity), agitation |
Metoclopramie (Reglan) Increases toxicity of... | Opioids |
Metoclopramie (Reglan) Decreased effectiness by... | Anticholinergic drugs |
Opiod Drugs | Narcotic - Demerol (brief duration - 4 hours) |
Barbituates | Butabital |
Barbituates (Butabital) drugs | Esgic, Fiorcet, Fiorinal, Phrenalin |
Barbituates (Butabital) MOA | Depresses CNS |
Barbituates (Butabital) Form | Tablets & Capsules |
Barbituates (Butabital) CI | Porphyria (HBG metabolism - light sensitivity, etc.) |
Barbituates (Butabital) SE | Dizziness, Drowsiness, Nausea, Heartburn, Confusion, Mental Depression, Insomnia, Nightmares |
Barbituates (Butabital) Pregnancy Category | C |
Barbituates (Butabital) Increased toxicity with... | Benzodiazepines (Zantax), Valproic acid & CNS depressants |
Barbituates (Butabital) decreases the effect of... | Warfarin, OCPs, TCAs, Doxycycline, Beta blockers |
Migraine Prophylaxis | Adults: 1HA/Wk. Kids: 2HA/Month |
Prophylatic Agents | Beta blockers, Calcium channel blockers, antidepressants, anticonvulsants |
High Efficacy First line - Prophylatic Agents | Beta Blockers, Divalproex, Topiramte (Topamax), TCAs (not FDA approved) |
Low Efficacy First line - Prophylatic Agents | Verapamil (Calcium Channel Blocker, NSAIDs, SSRIs |
Beta Blockers MOA | Act on 5HT2 receptors |
Beta Blockers Use | Coexisisting Hypotension, Tremor or Palpitations |
Beta Blockers SE | Hypotension, worsen asthma & CHF & Depression |
Beta Blockers Drugs | Propanolol & Atenolol |
Antidepressants drugs | Amitriptyline or Nortriptyline |
Antidepressants drugs MOA | Increases serotonin |
Antidepressants drugs Use | Coexisting depression |
Antidepressants drugs SE | Worsens Palpitations, Sedative, weight gain |
Calcium Channel Blockers MOA | Vasodilation |
Calcium Channel Blockers Use | Co-existing HTN, Raynauds & esophogeal spasm |
Anticonvulsants Drugs | Topamax (Topiramate) & Valproic Acid |
Topamax | Topiramate |
Topamax (Topiramate) SE | Paresthesias & Weight Loss |
Valproic Acid SE | Nausea, Fatigue, Tremor, Hair loss, weight gain, PCO, lipid changes |
Herbs | Feverfew, Magnesium, Riboflavin, Botulinum Toxicity |