The following medications are being used successfully by some headache and Migraine patients as preventive medications. They're listed first by their generic names, followed by some of their brand names.

ANTIHYPERTENSIVES (blood pressure meds)
Alpha-2 agonists:

• Clonidine, aka Catapres
• Guanfacine, aka Tenex

ACE Inhibitors:

• Benazepril, aka Lotensin
• Captopril, aka Capoten
• Enalapril, aka Vasotec
• Fosinopril, aka Monopril
• Lisinopril, aka Zestril, Prinivil
• Moexipril, aka Univasc
• Perindopril, aka Aceon
• Quinapril, aka Accupril
• Ramipril, aka Altace
• Trandolapril, aka Mavik
   

Alzheimer's/Dementia Medicaton:

• Memantine, aka Namenda
          

Angiotensin II Inhibitors:

• Candesartan, aka Atacand
• Eprosartan, aka Teveten
• Irbesartan, aka Avapro
• Losartan, aka Cozaar
• Olmesartan, aka Benicar
• Telmisartan, aka Midcardis
• Valsartan, aka Diovan
         

Beta Blockers:

• Acebutolol, aka Secral
• Atenolol, aka Tenormin
• Betaxolol, aka Kerlone
• Bisoprolol, aka Zebeta, Emconcor
• Cartelol, aka Cartrol
• Labetalol, aka Normodyne, Trandate
• Metoprolol, aka Lopressor
• Nadolol, aka Corgard
• Penbutololm aka Levatol
• Pindolol, aka Visken, Syn-Pindolol
• Propranolol, aka Inderal
• Timolol, aka Blocadren
             

Calcium Channel Blockers:

• Amlodipine, aka Norvasc
• Bepridil, aka Vascor
• Diltiazem, aka Cardizem, Tiazac
• Felodipine, aka Plendil
• Flunarizine, aka Sibelium (Canada)
• Isradipine, aka DynaCirc
• Nicardipine, aka Cardene
• Nifedipine, aka Adalat, Procardia
• Nimodipine, aka Nimotop
• Nisoldipine, aka Sular
• Verapamil, aka Calan, Verelan, Isoptin

ANTIHISTAMINES:

• Cyproheptadine, aka Periactin
• Pizotifen, aka Sandomigran (UK)

ANTIDEPRESSANTS
Tricyclic antidepressants (TCAs):

• Amitriptyline, aka Elavil (discontinued), Endep
• Amoxapine, aka Asendin
• Clomipramine, aka, Anafranil
• Desipramine, aka Norpramin
• Doxepin, aka Sinequan
• Imipramine, aka Norfranil, Tofranil
• Nortriptyline, aka Pamelor, Aventyl
• Protriptyline, aka Vivactil
• Trimipramine, aka Surmontil

MAOI Antidepressants:

• Isocarboxazid, aka Marplan
• Phenelzine, aka Nardil
• Tranylcypromine, aka Parnate

Selective serotonin reuptake inhibitors (SSRIs):

• Citalopram, aka Celexa
• Escitalopram oxalate, aka Lexapro
• Fluoxetine, aka Prozac
• Fluvoxamine, aka Luvox
• Paroxetine, aka Paxil
• Sertraline, aka Zoloft

Selective serotonin and norepinephrine reuptake inhibitors (SSNRIs):

• Duloxetine hydrochloride, aka Cymbalta
• Venlafaxine, aka Effexor, Effexor XR

Other Antidepressants:

• Bupropion, aka Wellbutrin, Zyban
• Mirtazepine, aka Remeron
• Trazodone, aka Desyrel

Attention Deficit Hyperactivity Disorder Meds:

• Dextroamphetamine, aka Adderall
• Atomoxetine HCl, aka Strattera
• Methylphenidate HCl, aka Concerta, Ritalin
• Pemoline, aka Cylert

ARTHRITIS MEDS
Cox-2 Enzyme Inhibitors:

• Celecoxib, aka Celebrex

MUSCLE RELAXANTS:

• Carisoprodol, aka Soma
• Cyclobenzaprine, aka Flexeril
• Lioresal, aka Baclofen
• Metaxalone, aka Skelaxin
• Tizanidine, aka Zanaflex

NEURONAL STABILIZING AGENTS (antiseizure meds)
Many people call this class of medications "antiseizure medications." Actually, these meds are neuronal stabilizing agents. They work to stabilize the neuronal activity in the brain. Considering that Migraineurs have overactive neurons in the brain that, when a trigger is encountered, start firing in a wave and start a chain reaction that produces the symptoms of a Migraine attack, it makes sense to use them for Migraine prevention. These meds are only antiseizure meds when they're being used to prevent seizure activity.

• Carbamazepine, aka Tegretol
• Clonazepam, Klonopin
• Clorazepate, aka Tranxene
• Divalproex, aka Depakote
• Gabapentin, aka Neurontin
• Levetiracetam, Keppra
• Lamotrigine, aka Lamictal
• Oxcarbazepine, Trileptal
• Tiagabine, aka Gabitril
• Topiramate, aka Topamax
• Valproate Sodium, aka Depacon
• Zonisamide, aka Zonegran
• Pregabalin, aka Lyrica

ERGOT ALKALOID:

• Methylergonovine, aka Methergine (the only ergot used as a preventive)

LEUKOTRIENE BLOCKERS:

• Montelukast, aka Singulair
• Zafirlukast, aka Accolate
• Zyleuton, aka Zyflo

OTHER:

• Baclofen, aka Lioresal
• Botulinum Toxin Type A, aka Botox
• Memantine, aka Namenda

DIETARY SUPPLEMENTS:

• Coenzyme Q10
• Feverfew
• Butterbur, aka Petadolex
• Magnesium
• Vitamin B2
• 5-HTP (Check carefully with doctor because of interactions with meds including triptans and SSRIs)
• Lecithin
• Melatonin

DEVICES:

• The NTI Tension Suppression System, invented by Dr. Jim Boyd, has proven quite effective for some people who have problems with clenching or grinding their teeth in their sleep.

This list will be updated as more medications are successfully used for headache and Migraine prevention. If you're having problems finding an effective preventive regimen, sharing this list with your doctor may be helpful to you.

References:

Ramadan, Nahib M., MD; Silberstein, Stephen D., Md, FACP; Frietag, Frederick G., DO; Gilbert, Thomas T., MD, MPH; Frishberg, Benjamin M., MD. "Evidence-Based Guidelines for Migraine Headache in the Primary Care Setting: Pharmacological Management for Prevention of Migraine." American Academy of Neurology Practice Guidelines. September, 2000.