Conditions

Medications for chronic migraine

Chronic migraine, meaning headache on fifteen or more days a month, has treatment options the episodic form does not: onabotulinumtoxinA injections and CGRP-targeted preventives. Withdrawing an overused acute medication is frequently the necessary first step. Withdrawing an overused acute medication is frequently the necessary first step, since until that happens preventives often appear not to work.

Quick answer

Chronic migraine, meaning headache on fifteen or more days a month, has treatment options the episodic form does not: onabotulinumtoxinA injections and CGRP-targeted preventives. Withdrawing an overused acute medication is frequently the necessary first step. Withdrawing an overused acute medication is frequently the necessary first step, since until that happens preventives often appear not to work.

The step that has to come first

A large proportion of chronic migraine involves medication overuse headache, where frequent acute treatment has converted an episodic pattern into a near-daily one. Until that is addressed, preventives often appear not to work, and increasing them is the wrong move. Withdrawing the overused drug is done as a planned, supervised process, sometimes with bridging treatment, and headaches usually worsen temporarily before improving. Knowing that in advance is what makes it survivable.

Treatments specific to the chronic form

OnabotulinumtoxinA is licensed for chronic migraine and given in cycles following a standardised injection pattern; benefit typically builds over more than one cycle. Monoclonal antibodies targeting CGRP or its receptor are given by injection at intervals and are used in both episodic and chronic migraine. Oral preventives from the beta blocker, antidepressant and anti-seizure classes remain relevant. Insurance coverage for the newer agents usually requires documented frequency and failed prior trials.

Judging it, and combining treatments

Success is fewer headache days, not zero. A shift from twenty days a month to twelve is a genuine result, and judged by feel rather than a tally it is easy to dismiss, which is how effective treatment gets abandoned. Keep a continuous calendar count. Combining a preventive with limited, tracked acute treatment is normal; what is not workable is unlimited acute use alongside a preventive, because the first undermines the second.

About this practice

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.

Emergency & crisis resources: Clinical Neurology Specialists is not an emergency service. For stroke symptoms, a seizure lasting more than five minutes or any medical emergency, call 911 or go to the nearest emergency room. For a mental health crisis, call or text 988 (Suicide & Crisis Lifeline).

Frequently asked

Questions about medications for chronic migraine

What medications treat chronic migraine?
OnabotulinumtoxinA injections given in cycles, CGRP-targeted monoclonal antibodies given by injection at intervals, and oral preventives from the beta blocker, antidepressant and anti-seizure classes. Withdrawing an overused acute medication is often the necessary first step before any of these works properly.
Why do I need to stop my painkillers first?
Because a large proportion of chronic migraine involves medication overuse headache, where frequent acute treatment has caused the near-daily pattern. Until that is addressed, preventives often appear ineffective. Withdrawal is planned and supervised, and headaches commonly worsen temporarily before improving.
How is Botox different from a tablet preventive?
It is injected in a standardised pattern across the head, neck and shoulders in cycles rather than taken daily, it is licensed specifically for chronic rather than episodic migraine, and benefit typically builds over more than one cycle rather than appearing after the first treatment.
Can I take a preventive and still use acute treatment?
Yes, and that is the normal arrangement, provided acute use is limited and tracked. What does not work is unlimited acute use alongside a preventive, because frequent acute medication maintains the near-daily pattern the preventive is trying to break. Unlimited acute use alongside a preventive undermines it, because frequent acute medication maintains the very pattern the preventive is trying to break.
What counts as success?
Fewer headache days rather than none. Going from twenty headache days a month to twelve is a real result, and it is easy to dismiss judged by impression alone. That is why a continuous calendar tally matters: it turns a vague sense into a measurable comparison.

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.

Next step

Speak to a board-certified neurologist

Adults 18 and older, at the Las Vegas and Henderson offices. Call 702-804-1212 or request an appointment online.