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Headache medications

I am once again honored to participate in the annual meeting of the Headache Cooperative of the Northeast to be held March 7-9 at the Stamford Marriott Hotel and Spa in Stamford, CT.

You will get a chance to learn about the latest scientific breakthroughs from Rami Burstein, president of the International Headache Society. You will also hear from other prominent figures in the field, renowned for their pioneering work and extensive contributions over several decades – Drs. Steven Baskin, Elizabeth Loder, Thomas Ward, Morris Levin, Richard Lipton, Steven Silberstein, Allan Purdy, Alan Rapaport, Paul Rizzoli, Sait Ashina, and others.

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The annual course, “The Shifting Migraine Paradigm 2024” will be held February 15-17, 2024 at the Plaza San Antonio Hotel & Spa. This three-day conference offers an excellent update on the treatment of migraine and other headaches.

It is always an honor to be invited to speak at this event. The topic of my presentation is Supplements and Medical Foods.

 

 

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The thyroid function test is in the initial battery of blood tests we order on all our headache patients (along with RBC magnesium, vitamins D, B12, folate, and others). Having either an overactive or underactive thyroid is known to worsen migraine headaches.
A new study published by Indian researchers confirmed that treating an underactive thyroid improves headaches. The researchers studied 87 headache patients with a mild decrease in thyroid function. Half of them were prescribed thyroid medicine and the other half received a placebo. Correcting thyroid deficiency improved headache frequency, severity, and disability (MIDAS score) at three months of follow-up in the treatment group compared to the placebo group.
The conclusion was that it is logical to check thyroid function status in patients presenting with migraine headaches.
Thyroid function can sometimes decline precipitously and cause worsening of headaches without any other symptoms. This can happen after delivering a baby and the cause is often misinterpreted. Lack of sleep, stress, hormonal changes (female hormones, not thyroid hormone), occlusion of veins inside the head, and even stroke are suspected.  All those conditions can cause headaches after the delivery. But we should not forget to check the thyroid.
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Cluster headaches arguably cause the worst imaginable pain, hence the moniker, suicide headaches.  Fortunately, there are many treatments for this condition, including two FDA-approved drugs. One is sumatriptan injections taken as needed to stop an attack. The other is a preventive monthly injection of galcanezumab (Emgality). We also use Botox injections, oxygen and a variety of medications. Nevertheless, some people do not respond to these treatments.

A report by Japanese neurologists from Tokyo suggests a new treatment. One theory of the origin of cluster headaches is the reactivation of the varicella-zoster virus that causes chickenpox and shingles.

The study included over 160 patients with episodic cluster headaches who received a shingles vaccine. The response to the vaccine was measured by the amount of antibodies in the blood. Those patients who had more antibodies had a longer delay to the next cluster episode than those with low antibody counts. They also found that those who had a COVID infection and received multiple COVID vaccines, tended to do worse.

It is premature to recommend shingles vaccine to patients with cluster headaches unless they are over 50, the age when everyone is advised to get it.

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Since the legalization of medical marijuana in New York in 2014, I have prescribed it to several hundred patients. My experience suggests that approximately one-third of my patients benefit from its use and continue to rely on it for their medical needs. Some have reported relief from symptoms such as nausea and anxiety, often associated with migraines, while others find it highly effective in aiding sleep. Additionally, there are patients who have reported significant pain relief.

It is possible that the relatively low response rate I see in my patients is due to the fact that I reserve medical marijuana for those patients who do not respond to multiple drugs.

At the recent meeting of the International Headache Society, Dr. Nathaniel Schuster and his colleagues presented a study titled “Vaporized cannabis versus placebo for the acute treatment of migraine: a randomized, double-blind, placebo-controlled, crossover trial.” This study aimed to investigate the potential of medical marijuana in alleviating pain and associated migraine symptoms.

In this study, participants were instructed to treat moderate-to-severe migraine attacks within four hours of onset using vaporized cannabis flower. They were asked to treat up to four separate migraine attacks, using vaporized cannabis with different compositions: 1) THC-dominant (6% THC), 2) CBD-dominant (11% CBD), 3) THC/CBD mix (6% THC/11% CBD), and 4) placebo cannabis, with the order randomized and double-blinded.

Out of the 92 participants enrolled, 71 treated at least one migraine attack. Two hours after vaporization, the THC/CBD mix outperformed the placebo in achieving pain relief (69% vs. 48%), pain freedom (36% vs. 16%), and freedom from the most bothersome symptoms, such as nausea, photophobia, or phonophobia (62% vs. 36%). The THC-dominant option was superior to the placebo for pain relief at 2 hours (71% vs. 48%) but was not significantly different from the placebo regarding pain freedom or freedom from the most bothersome symptoms. The CBD-dominant option did not significantly differ from the placebo in terms of pain relief, pain freedom, or freedom from the most bothersome symptoms. The most common side effects reported were sleepiness, followed by euphoria, with no serious adverse events observed.

In conclusion, the authors of the study found that the acute treatment of migraine with a vaporized THC/CBD mix (6% THC/11% CBD) was superior to the placebo in terms of pain relief, pain freedom, and freedom from the most bothersome symptoms at the 2-hour mark.

This study has significant practical implications. In the past, I would leave the choice of products to the licensed pharmacist at the dispensary, while advising patients that finding the right combination is often a trial-and-error process. However, now, I will be better equipped to advise my patients on the most suitable type of medical marijuana for their specific needs based on the findings of this study.

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A presentation by Jing Jie Yu, Joshua E. Levine, and others from U. of Florida at the last meeting of the International Headache Society described their analysis of the potential risks of triptans.

Triptans are drugs that were first approved in 1992 and include sumatriptan (Imitrex, Imigran), naratriptan (Amerge, Naramig), rizatriptan (Maxalt), zolmitriptan (Zomig), eletriptan (Relpax), almotriptan (Axert),  and frovatriptan (Frova). Because triptans have the potential to constrict blood vessels they are contraindicated in patients who have coronary artery disease (CAD) or cerebrovascular disease (CVD).

The study was entitled, Association between Triptan Use and Cardiovascular Disease and All-Cause Mortality among Patients with Migraine: A Systematic Review and Meta-analysis

This meta-analysis of several studies showed that triptan use was not associated with increased risk of stroke, TIA, or all-cause death risk but with a decreased CAD risk in migraine patients.

A report presented in 2022 showed not only that triptans are safe in people without CVD, but are relatively safe even in those who have CVD. The risk of major adverse cardiovascular events with triptans was 1% while with NSAIDs, such as ibuprofen and naproxen, it was 3.8%.

 

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Magnificent Magnesium is the title of a book my colleague and friend, cardiologist Dr. Dennis Goodman wrote about this underappreciated mineral. Magnesium produces magical results, albeit only in those who are deficient.  And millions of Americans are deficient. Our research has shown that close to half of migraine sufferers are. Magnesium saves lives in cardiac care units by reducing the risk of arrhythmias. It is given intravenously for acute asthma attacks and treats eclampsia and pre-eclampsia in pregnancy. The list goes on.

A report by Canadian neurologists just published in a leading neurology journal, Neurology, describes magnesium’s role in the treatment of movement disorders. Sixty patients with low magnesium levels who had a movement disorder were identified in medical journals. Movement disorders observed were postural tremor (14 patients), resting tremor (5), intention tremor (6), ataxia involving the trunk (29) or limbs (15) and dysarthria (13), athetosis (5), myoclonus (4), and chorea (1). Some patients also had downbeat nystagmus, tetany (muscle cramping), drowsiness, vertigo, and proximal muscle weakness.

The most common culprit in these patients was a class of drugs called proton pump inhibitors (PPIs). These are drugs like omeprazole (Prilosec), pantoprazole (Protonix), esomeprazole (Nexium), and dexlansoprazole (Dexilant). They are known to interfere with the absorption of not only magnesium but also other vitamins. Long-term users of these drugs are at a higher risk of dementia, most likely because they prevent absorption of vitamin B12.  I try to get all of my patients off PPIs. This is not easy because stopping the drug causes a rebound in acid production. Some people have worse heartburn than when they started the PPI. One strategy is to replace these drugs with famotidine (Pepcid) and Rolaids (better than Tums since Rolaids have calcium and magnesium while Tums have only calcium).  After a period of time, patients are able to stop famotidine and take only Rolaids and then, stop Rolaids as well. A healthy low-acid diet, stress management, weight loss, and sleeping on the left side can also help.

#magnesium #migraine #ataxia #dysarthria #tremor #PPIs

 

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New daily persistent headache (NDPH) is condition that is defined solely by the fact that the headache begins suddenly one day and does not go away. There are no scientific studies to suggest possible underlying mechanisms or treatments. Some patients develop it after a viral infection while others, after a period of stress and many with no apparent trigger.

In my latest book, I mentioned how a seemingly benign idea of classifying medical conditions can cause harm. In case of NDPH, many anecdotal reports in medical journals indicate that this condition is not responsive to treatment. However, there are no controlled double-blind studies, only anecdotal reports. Many patients with this condition will look up this literature and conclude that there is no hope of getting better. I have seen many such devastated people. But this bleak picture is clearly wrong.

I have seen many patients with NDPH who responded to various treatments. In my 30 years of using Botox, I have found it to be one of the safest and most effective treatments for NDPH as well as migraine and other types of headaches.

At the recent meeting of the International Headache Society held in Seoul, two presentations described good responses of NDPH to Botox injections.

The first report was by S. Cheema and colleagues of Queen Square Institute of Neurology and The National Hospital for Neurology and Neurosurgery, London, UK. They compared patients with NDPH (58) and those with chronic migraine (CM) with daily attacks (153) and chronic migraines without daily attacks (85). There was a 30% reduction in mean moderate and severe headache days in 33% of patients with NDPH, 43% with daily CM and 55% with non-daily CM.

The second report was by Shuu-Jiun Wang and colleagues of the Neurological Institute, Taipei Veterans General Hospital. They looked at the response of patients with NDPH who had predominately migraine features and those who had predominantly features of tension-type headaches. Of 228 patients diagnosed with NDPH, 199 patients (87%) had migrainous features and 29 patients (13%) had tension-type features. Their conclusion: “Through a mean follow-up duration of 2.5 years, around 40% patients with NDPH showed a favorable outcome at our headache center. Our results suggest NDPH might not be as grave as previously reported.”

Yes, these were also anecdotal reports rather than controlled trials, but they clearly show what I have also observed in my practice – NDPH is a very treatable condition. Hopefully, the next, fourth edition of the International Classification of Headache Disorders will no longer list NDPH as a diagnosis since it has no scientific basis.

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A recently published study suggests that valproic acid (Depakene) given intravenously in an emergency room can relieve migraine headaches in children. The researchers also showed that giving these children an oral version of this drug, divalproex sodium (Depakote), does not reduce the frequency of future migraine attacks. 

Divalproex sodium was first approved by the FDA in 1983 for the treatment of epilepsy. Subsequently, it was also approved for the treatment of mania and for the prevention of migraine headaches. Notably, the FDA-approved label does not place any age limit on the use of this drug. It took years to discover all the risks associated with this medication. In rare instances, the drug may lead to liver failure and severe pancreatitis, both of which can be fatal. Moreover, divalproex sodium can result in significant congenital malformations, as well as diminished IQ scores and neurodevelopmental disorders when the fetus is exposed to the drug in utero. It is strictly contraindicated in pregnant women. Women of childbearing age must use effective contraception. Divalproex can also cause many other less dangerous but unpleasant side effects.

With all this in mind, why would anyone want to take this drug? It is certainly not on the list of my top 20 or 30 drugs for the prevention of migraines. I do, however, have several patients whose migraines did not respond to many drugs but are significantly improved with divalproex sodium. Such patients must have proper monitoring with regular blood tests.

We do occasionally give intravenous valproic acid in the office but only if 5 or 6 other acute treatments fail to stop a severe persistent migraine. It works in about half of our patients. I am even more reluctant to give this drug to children.

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Zavegepant (Zavzpret), the first CGRP nasal spray for the treatment of acute migraine attacks, was approved by the FDA in March and is now readily available in all US pharmacies..

Zavegepant belongs to the family of CGRP antagonists, which work by blocking excessive amounts of the neurotransmitter CGRP. Elevated levels of CGRP are known to contribute to the development of migraines. By inhibiting its action, zavegepant can effectively stop an ongoing migraine attack. While there are already two oral CGRP medications for the acute treatment of migraines (Nurtec and Ubrelvy), zavegepant is the first nasal spray option. Nasal sprays offer several advantages, including faster onset of action compared to tablets and the ability to bypass the stomach. These benefits are particularly valuable for individuals experiencing migraines accompanied by nausea and vomiting.

Clinical studies have demonstrated that zavegepant is superior to placebo in promptly eliminating all pain and the most bothersome symptom within two hours of administration. The most commonly reported bothersome symptoms associated with migraines are nausea, sensitivity to light (photophobia), and sensitivity to noise (phonophobia).

Side effects of zavegepant were generally mild and infrequent. Participants in clinical trials noted an unpleasant taste in 18% of cases, compared to 4% in the placebo group. Additional side effects included nausea (4% vs. 1%), nasal discomfort (3% vs. 1%), and vomiting (2% vs. 1%). Taste-related issues have been observed with other nasal sprays used for migraines, particularly among patients who experience nausea. However, this can be easily addressed by sucking on a hard candy while using the nasal spray.

Interestingly, even individuals who did not respond to other CGRP drugs may potentially benefit from zavegepant. While these drugs are similar in their mechanism of action, they are not identical, and patients often exhibit strong preferences for a particular medication within the same category. This preference phenomenon is common in other migraine drug categories such as triptans, NSAIDs, and oral CGRP drugs.

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The fact that certain types of weather can trigger headaches is not news to many migraine sufferers. Many researchers have investigated this relationship, but the findings have been inconsistent. The reported weather triggers range from humidity and strong winds to heat, cold, and barometric pressure changes.

In a recent study, Japanese researchers analyzed data collected from a smartphone app used by 4,375 individuals who experience headaches. By employing statistical and deep learning models, they aimed to predict the occurrence of headaches based on weather factors. The results of their study have been published in Headache, the journal of the American Headache Society.

The research confirms that headaches are more likely to occur under specific weather conditions. Low barometric pressure, barometric pressure changes, higher humidity, and rainfall were identified as factors associated with a higher occurrence of headaches.

This finding is not just a matter of curiosity; it has practical implications. There are several options besides moving to a place with a consistently mild climate, such as Southern California. For instance, low barometric pressure headaches can sometimes be prevented with the use of acetazolamide (Diamox), a medication commonly prescribed for mountain sickness. Setting up a Google Alert or using an app like WeatherX can provide warnings when barometric pressure drops. This allows individuals to take preemptive measures such as taking acetazolamide to prevent a headache the following day. Adopting general measures such as regular exercise, meditation, a healthy diet, and sufficient sleep can also help mitigate the effects of weather-related headaches.

 

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Antidepressants are commonly prescribed to treat migraines, tension-type headaches, and various types of chronic pain. Migraines primarily affect women of reproductive age, and those who suffer from migraines are more likely to develop anxiety and depression compared to those without migraines. This may be another reason why someone with migraines might be prescribed an antidepressant. Women who are pregnant or planning to become pregnant are understandably cautious about taking any medication.

Antidepressant use during pregnancy does not increase the risk of neurodevelopmental disorders in children, according to a new study published in JAMA Internal Medicine.

Antidepressant use during pregnancy has been associated with neurodevelopmental disorders in children in some studies. However, other factors such as the parent’s mental health status, genetics, and environmental factors may have influenced these results. The objective of this study was to evaluate the association between antidepressant use in pregnancy and neurodevelopmental outcomes in children.

The study looked at data from over 3 million pregnancies, tracking children from birth until outcome diagnosis, disenrollment, death, or the end of the study (maximum 14 years). There were 145,702 antidepressant-exposed pregnancies.

The study found no evidence to suggest that antidepressant use in pregnancy itself increases the risk of neurodevelopmental disorders such as autism spectrum disorder, attention-deficit/hyperactivity disorder, specific learning disorders, developmental speech/language disorders, developmental coordination disorders, intellectual disabilities, or behavioral disorders.

However, given the strong crude associations found in previous studies, antidepressant exposure during pregnancy may be an important marker for the need for early screening and intervention to modify factors that do increase such risk.

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