There is no single best migraine preventive, and any clinician who names one without knowing your history is guessing. Several classes have solid evidence and roughly comparable average benefit. What separates them for an individual is which of your other conditions the drug helps or aggravates, whether pregnancy is possible, what side effects you will tolerate, and what your insurance covers.
There is no single best migraine preventive, and any clinician who names one without knowing your history is guessing. Several classes have solid evidence and roughly comparable average benefit. What separates them for an individual is which of your other conditions the drug helps or aggravates, whether pregnancy is possible, what side effects you will tolerate, and what your insurance covers.
Beta blockers such as propranolol and metoprolol are long-established first choices. Topiramate and valproate have strong evidence, with valproate ruled out for anyone who could become pregnant because it causes birth defects. Amitriptyline helps when insomnia or coexisting tension-type headache is part of the picture. Candesartan has reasonable support. The CGRP monoclonal antibodies, including erenumab, fremanezumab and galcanezumab, are given monthly or quarterly by injection, and the oral gepants atogepant and rimegepant are newer options. OnabotulinumtoxinA injections are approved specifically for chronic migraine, not for episodic migraine.
The same drug is the right choice for one person and the wrong one for the next. High blood pressure alongside migraine makes a beta blocker or candesartan efficient. Asthma rules out beta blockers. Being underweight or wanting to avoid word-finding difficulty argues against topiramate. Wanting to conceive reshapes the entire list. This is why the useful question is not which preventive is best but which one fits you, and it is answered in a visit, not in an article.
Preventives need an adequate trial at an adequate dose, typically eight to twelve weeks, before the verdict is in. Most people abandon them earlier than that and conclude nothing works. Success is not zero headaches; it is a meaningful drop in how many days a month you lose. A simple diary of headache days, severity and what you took is what makes that judgement possible, and without one the assessment is guesswork on both sides.
Frequent use of acute medication, including over-the-counter combination painkillers, triptans and anything containing caffeine or butalbital, produces medication-overuse headache. While that is running, preventives underperform no matter which one you choose. Unwinding it usually has to come first, and it is the single commonest explanation for someone who has failed four preventives.
Clinical Neurology Specialists has been physician-owned since 1998, when Leo Germin, M.D., FAANEM founded it. Five board-certified neurologists and four advanced practice providers see patients at the Las Vegas and Henderson offices, each with its own AANEM-accredited electrodiagnostic laboratory.
Clinical Neurology Specialists is an adult outpatient neurology practice for patients 18 and older. The practice performs no surgery and operates no imaging suite, infusion suite or interventional pain programme, and provides no emergency or inpatient care.
Physician-reviewed. Reviewed by the physicians of Clinical Neurology Specialists — board-certified neurologists, AANEM-accredited electrodiagnostic laboratories, physician-owned since 1998. Reviewed 1 August 2026. This article is general education for adults 18 and older and is not a substitute for a consultation.
Sources and further reading: MedlinePlus: migraine; American Academy of Neurology; National Institute of Neurological Disorders and Stroke.
Adults 18 and older, at the Las Vegas and Henderson offices. Call 702-804-1212 or request an appointment online.