Restless legs syndrome (RLS) is common, often treatable, and especially relevant for people with MS because it can worsen sleep, mood, and overall daily function.
RLS makes people feel a strong urge to move their legs, often with uncomfortable sensations like tingling or achiness, and is worst when sitting still or at night—so it can make falling or staying asleep hard. About 3% of adults have RLS bad enough to need treatment, but up to 27% of people with multiple sclerosis (MS) may have RLS, so it’s much more common in MS than in the general population. Low iron levels in the body are linked to RLS, and giving iron by mouth or intravenously helped people whose blood iron tests were low. Stopping medicines that can cause or worsen RLS (like some antidepressants or sleep antihistamines) can improve symptoms when possible. Medicines called gabapentinoids (for example, gabapentin) are the first choice and helped about 70% of patients in trials, while older dopamine medicines can make RLS worse over time and are no longer the first choice for treatment.
People with MS and their caregivers should care because poor sleep from RLS can make MS symptoms like fatigue, thinking problems, and mood worse—like adding a heavy backpack to an already hard walk. Neurologists, sleep doctors, and primary care providers should look for RLS when an MS patient complains of sleep trouble, because treating RLS can improve sleep and daily energy. Caregivers can help by observing nighttime restlessness and reminding clinicians about possible medication causes or low iron. If you notice leg discomfort that improves with moving, especially at night, it’s worth bringing up with your care team—treating RLS can be as important as adjusting MS therapies for quality of life. Simple checks like a blood test for iron and reviewing current drugs can lead to fast, helpful steps rather than jumping to complex treatments.
This review summarizes many studies but is not a single new trial, so results combine different groups of patients and methods, which can affect how well findings apply to one person. Iron treatments help mainly when blood tests show low or borderline iron; giving iron when levels are normal may not help and should be discussed with your doctor. Some medicines can make RLS worse over time (called augmentation), so treatments need follow-up and may change; always check with your clinician before stopping or starting medications.
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Read MoreWhether you’ve recently been diagnosed with Multiple Sclerosis (MS) or are seeking to broaden your understanding of this complex, neurodegenerative disease, navigating the latest research can feel overwhelming. Studies published in respected medical journals like JAMA often range from early-stage, exploratory work to advanced clinical trials. These evidence-based findings help shape new disease-modifying therapies, guide symptom management techniques, and deepen our knowledge of MS progression.
However, not all research is created equal. Some clinical research studies may have smaller sample sizes, evolving methodologies, or limitations that warrant careful interpretation. For a more comprehensive, accurate understanding, we recommend reviewing the original source material—accessible via the More Details section above—and consulting with healthcare professionals who specialize in MS care.
By presenting a wide range of MS-focused studies—spanning cutting-edge treatments, emerging therapies, and established best practices—we aim to empower patients, caregivers, and clinicians to stay informed and make well-informed decisions when managing Multiple Sclerosis.