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5 Things To Know About MS Treatments and Hair Loss

Posted on April 6, 2023

If you’re noticing more strands than usual in your hairbrush or finding sparse spots on your scalp, you might wonder if this is another part of living with multiple sclerosis (MS). Given this autoimmune condition’s wide variety of symptoms, it’s understandable that people living with MS might wonder if thinning hair is one of them. Unexpected hair loss — medically known as alopecia — is not a symptom of MS. But you could lose hair as a side effect from treatments for MS or other common medications you may be taking for other conditions.

In addition, being diagnosed with MS and worrying about how this condition will affect your life can be a traumatic experience — and stress may cause hair loss. In fact, hair loss itself can be distressing and affect one’s emotional well-being.

People living with MS need to learn about hair loss and why it might happen. Understanding possible connections between MS and hair loss may help you determine the source of your thinning hair, find ways to address it, and improve your quality of life. Read on for five things to know about MS and hair loss.

1. Hair Thinning Can Be a Side Effect of Disease-Modifying Therapies

Certain categories of medications used to treat MS are known to sometimes cause hair thinning or hair loss as a side effect. For example, hair loss can occur with certain disease-modifying therapies (DMTs) approved by the U.S. Food and Drug Administration (FDA) to treat relapsing MS. FDA-approved DMTs include:

Hair thinning can be a side effect of some MS medications, such as disease-modifying therapies. This type of hair loss is usually temporary. (Adobe Stock)


Although researchers have reported that approximately one-third of people taking interferon-beta medications during studies experienced hair loss, teriflunomide seems to be most commonly associated with hair thinning. “Thinking about starting Aubagio. Heard Aubagio has many side effects — diarrhea, headaches, hair thinning, and more,” wrote one MyMSTeam member.

In one small study, 10 percent to 14 percent of 38 people taking teriflunomide for MS experienced this side effect. Fortunately, the hair thinning is typically temporary, not severe, and doesn’t require you to stop taking the medication. One MyMSTeam member wrote, “I’m on Aubagio and have been for two years. I did have some hair thinning, but not so that anyone could notice. It only lasted a couple months and started at about month three.”

Mitoxantrone is also known to cause hair loss, but hair typically grows back once treatment ends. Although DMTs like these may play a role in hair loss, another medication, condition, or lifestyle issue might also be the culprit. Don’t stop taking or change your dosage of a DMT — or any medication — without first talking to your neurologist.

2. Other Treatments for MS May Cause Hair Loss

Medications that cause immunosuppression (weakening of the immune system) may also lead to problems with hair thinning or loss. These treatments calm the overactive immune system that causes inflammation (the typical sign of relapse) or treat MS symptoms. Some of these drugs are routinely used to treat MS but are not approved specifically for MS.

Medications sometimes used to treat MS, such as immunosuppressants, can damage hair follicles, leading to hair loss or thinning. (Adobe Stock)

Examples include:

  • Steroids such as dexamethasone (Decadron)
  • Azathioprine (Imuran, Azasan)
  • Methotrexate (Otrexup, Rasuvo, Trexall)
  • Cyclophosphamide (Cytoxan)

These medications are believed to damage hair follicles, leading to hair loss and hair thinning. Immunosuppressive agents are also used for chemotherapy (cancer treatment). In hematopoietic stem cell transplants, which are reserved for severe cases of MS, hair loss occurs as a side effect of chemotherapy given to destroy the immune system, which is then rebuilt using stem cells.

3. Treating Another Condition Could Cause Hair Loss

Some medications in your MS treatment plan could cause hair loss or thinning, but another commonly prescribed medication might be the more likely reason. Many people with MS experience depression or related mood disorders, and antidepressant medications can cause hair loss within the first three months of starting treatment. Examples of antidepressants associated with hair loss include bupropion (Wellbutrin), fluoxetine (Prozac), and sertraline (Zoloft). Hair typically grows back within a few months after stopping treatment.

A lengthy list of non-MS treatments may result in hair loss or thinning to varying degrees. Notable examples include:

  • Blood pressure or heart condition medications, such as propranolol (Inderal) and atenolol (Tenormin)
  • Anti-seizure medications, such as valproate (Depakote), levetiracetam (Keppra), and pregabalin (Lyrica)
  • Anticoagulants (blood thinners), such as apixaban (Eliquis), rivaroxaban (Xarelto), warfarin (Coumadin), and heparin
  • Acne medications, such as isotretinoin (Accutane)
  • Thyroid disorder medications, such as levothyroxine, methimazole, and propylthiouracil
  • Parkinson’s disease medications, such as levodopa, pramipexole, ropinirole, and bromocriptine

The related hair loss is typically not permanent, and your hair will grow back once the medication is stopped or when treatment ends.

4. Your Hair Loss Might Stem From a Condition — but Not MS

Although MS itself won’t cause your hair to thin, another condition might — such as alopecia areata, an autoimmune condition that causes hair loss. Although researchers have explored a possible link between alopecia areata and MS, so far, there’s no real evidence that alopecia is more common in people with MS than in the general population.

Other medical conditions that can cause hair loss include:

  • Thyroid disorders
  • Scalp infections
  • Other autoimmune diseases, such as lupus and rheumatoid arthritis
  • Some hormonal disorders, such as polycystic ovarian syndrome
  • Trichotillomania (a condition in which a person compulsively pulls out their hair)

5. The Root Cause of Your Hair Loss Might Not Be Medical

Thinning hair can accompany the natural process of aging, especially because of hormone changes. Also, some hair loss patterns are genetic (run in families). Some lifestyle-related factors that could lead to hair loss include:

  • Stress
  • Poor nutrition or significant weight loss
  • Traction alopecia (hair loss caused by tight hairstyles)

Never quit taking a DMT or other MS medication without speaking to your doctor — stopping on your own could trigger a relapse. Your doctor can help you figure out the likely reason behind your hair loss and how to best treat it.

Whatever the cause, significant hair loss can be traumatic. It’s important to speak with your doctor if your hair loss is worsening, follows a specific pattern, or is concerning to you. Hair loss could be a side effect of your MS treatment, but given the wide range of other contributing factors, your DMT may not be to blame after all.

Talk With Others Who Understand

MyMSTeam is the social network for people with MS and their loved ones. On MyMSTeam, more than 197,000 members come together to ask questions, give advice, and share their stories with others who understand life with MS.

Are you living with MS and experiencing hair loss? Did you find this article helpful? Share your experience in the comments below, or start a conversation by posting on your Activities page.

References
  1. MS Treatment and Hair Loss: What You Need To Know — Overcoming MS
  2. Disease Modifying Therapies — Multiple Sclerosis Society
  3. Real-World Observational Evaluation of Hair Thinning in Patients With Multiple Sclerosis Receiving Teriflunomide: Is It an Issue in Clinical Practice? — Neurology and Therapy
  4. Starting Disease-Modifying Therapies for Multiple Sclerosis — American Academy of Neurology
  5. Mitoxantrone — OncoLink
  6. Your Guide to Allogeneic Hematopoietic Stem Cell Transplant — Massachusetts General Hospital
  7. Diffuse Hair Loss Induced by Sertraline Use — Case Reports in Psychiatry
  8. Risk of Hair Loss With Different Antidepressants: A Comparative Retrospective Cohort Study — International Clinical Psychopharmacology
  9. 12 Medications That Cause Hair Loss — GoodRx
  10. Cosmetic Side Effects of Antiepileptic Drugs in Adults With Epilepsy — Epilepsy & Behavior
  11. Hair Loss With Levetiracetam in Five Patients With Epilepsy — Seizure
  12. Traditional Anticoagulants and Hair Loss: A Role for Direct Oral Anticoagulants? A Review of the Literature — Drugs — Real World Outcomes
  13. How To Deal With Hair Loss Caused by Medication — Brain & Life
  14. Dose Reduction May Lower Hair Loss Frequency, Allow for Longer Use of Isotretinoin for Acne — AJMC
  15. Does Levothyroxine Cause Hair Loss? — Drugs.com
  16. Does Methimazole Cause Hair Loss? — Drugs.com
  17. Hair Loss and Thyroid Disorders — British Thyroid Foundation
  18. Alopecia Induced by Dopamine Agonists — Neurology
  19. Baldness Induced by Dopamine Treatments May Be Reversible — Neurology
  20. Hair Loss — Mayo Clinic
  21. Associations Between Alopecia Areata and Multiple Sclerosis: A Report of Two Cases and Review of the Literature — International Journal of Dermatology
  22. Alopecia Areata — Cleveland Clinic
  23. Stopping Disease-Modifying Therapy in Nonrelapsing Multiple Sclerosis — International Journal of MS Care
  24. Hairstyles That Pull Can Lead to Hair Loss — American Academy of Dermatology Association
    Posted on April 6, 2023

    A MyMSTeam Member

    I use to have very thick hair but has become very thin. I was on Tysabri for over 4 years.

    April 16
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    I Didn’t See OCREVUS And I’m On This DMT But I Notice My Hair Requires Everyday Moisture

    November 27, 2023 by A MyMSTeam Member 1 answer
    Remi A. Kessler, M.D. is affiliated with the Medical University of South Carolina and Cleveland Clinic. Learn more about her here.
    Luc Jasmin, M.D., Ph.D., FRCS (C), FACS is a board-certified neurosurgery specialist. Learn more about him here.

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