How Medical Cannabis May Help with Muscle Spasms and Neurological Conditions

Introduction

Imagine this: you’re sitting in the living room, maybe Grandma’s knitting is clacking in the background, the 21-year-old is perhaps scrolling on his phone, and the conversation turns to something serious: “Why does Uncle Bill’s leg keep jerking? Why does Aunt Sue say her muscles feel like rubber bands snapping inside her? Why does that teenager in the YouTube video with multiple sclerosis (MS) look like he’s fighting his own body?”
These are real questions. And one of the emerging topics in neurology and symptom-relief is medical cannabis. Today, we’ll dive into how it may help with muscle spasms, spasticity, neurological conditions (for instance, MS) and other “hard to treat” symptoms, in a way that’s solidly research-based, yet friendly enough for a family gathering.

What we’re talking about: muscle spasms, spasticity & neurological symptoms

First: what are the symptoms?

  • Spasticity is when muscles become overly tight, resisting movement, sometimes painful. For example, with Multiple Sclerosis (MS) a lot of people describe their legs or arms as being “locked” or jerky. Verywell Health+2Multiple Sclerosis Society UK+2
  • Muscle spasms: sudden, involuntary contractions of muscles. These often come with stiffness, pain, twitch-ing.
  • Neurological conditions (MS is one of the main ones we’ll focus on) are tricky because the nervous system damage is complex; conventional treatments sometimes don’t fully resolve the symptoms.

If Grandma asks “why can’t they just take a pill and be done with it?” – the short answer: they sometimes do, but many still have residual symptoms. That’s where interest in alternative or adjunct (add-on) treatments like medical cannabis comes in.

The “fun facts” (and yes – they’re grounded in research)

Here are some interesting-to-tell fun facts that also reflect serious science:

  1. Cannabinoids like THC and CBD talk to our nervous system receptors.
    • Cannabis isn’t just a “weed” plant; it contains active compounds called cannabinoids (think Delta‑9‑tetrahydrocannabinol or THC and Cannabidiol or CBD) which engage with the body’s endocannabinoid system (yes, that’s a real thing). PMC+1
    • For instance, activation of CB1 (cannabinoid receptor type 1) may reduce excitability in nerve cells, which relates to spasticity reduction. PMC+1
  2. Research trials have shown measurable improvements in spasticity with cannabis-based medicines.
    • In a study of inhaled cannabis for MS patients with spasticity: those on the cannabis arm reduced their spasticity score (modified Ashworth Scale) more than placebo (average decrease ~2.74 points) and reduced pain by ~5.28 points on a visual analogue scale. PubMed+1
    • A systematic review of “whole-plant cannabis extracts” for MS spasticity found a trend toward benefit and generally tolerated side-effects. BioMed Central
  3. There are medically approved cannabis‐derived treatments for spasticity in MS (in some countries).
    • For example, in the UK and other countries, the spray Nabiximols (which contains THC + CBD) is approved for treatment-resistant spasticity in MS. Multiple Sclerosis Society UK+1
    • According to a recent Cochrane review: “…treatment with nabiximols likely results in improvement of spasticity and may not increase serious harmful effects compared with placebo.” Cochrane
  4. Patients are using it – by choice.
    • Surveys show that more than one in five people with MS reported they had used cannabis to try to manage their symptoms. Cochrane+1
    • That means: it’s not just academic, it’s real-life people trying to find relief.
  5. It’s not a miracle cure, and that’s part of the important story.
    • Some trials show objective measures (like walking speed) didn’t significantly improve, even where spasticity or self‐reported improvement did. PubMed+1
    • The evidence is still emerging for other neurological conditions beyond MS (less robust). The key word: adjunctive. Use with care. PubMed+1

How might medical cannabis help in practical terms?

Let’s walk through what it could help, how, and what to watch out for.

What it could help with:

  • Muscle spasms/spasticity: When the muscle tone is too high or muscles are jerking, cannabis-derived treatments have shown potential benefit.
  • Pain associated with spasticity: Some studies observed lower reports of pain in addition to stiffness. 
  • Sleep/quality of life: When spasms and stiffness ease a bit, sleep often improves (because frequent spasms at night disturb rest). Improved sleep = better daily functioning.
  • Neurological symptom support: In conditions like MS, where nerve damage leads to symptoms, some patients find cannabis helps them tolerate symptoms better.

How it could work: (the mechanisms)

  • Cannabinoid receptors in the nervous system (CB1, CB2) modulate neurotransmitter release, reduce excitatory signals, and might reduce muscle over-activity or abnormal reflexes. PMC+1
  • Anti-inflammatory effects: While not a panacea, cannabinoids might reduce some inflammation or secondary nerve irritation (though this is not yet brilliant in evidence).
  • Symptom relief by reducing the “down-stream” effects: If spasms lead to pain and poor sleep, easing the spasms leads to a chain reaction of benefits.

What to watch out for / what it doesn’t guarantee:

  • It may help subjective measures (how you feel), but objective improvements (walking speed, objective muscle tone) are sometimes less impressive. E.g., one study: cannabis improved patient-reported spasticity, but not the Ashworth scale significantly. PubMed+1
  • Side-effects: dizziness, fatigue, dry mouth (especially with high THC).
  • Legal/regulatory: Depending on your jurisdiction, access, formulation, monitoring vary. In the U.S., federal laws complicate things.
  • Drug interactions: Cannabis products (especially ones with THC) may interact with other medications, so doctors should always check for interactions.

Ready to Explore Medical Cannabis Treatment?

At REN Health, we’re proud to provide expert Medical Cannabis Evaluations, Certifications, and Consultations to patients across:

🌿 Connecticut
🌿 Maryland
🌿 Ohio
🌿 Pennsylvania
🌿 Virginia

Our licensed providers specialize in evidence-based cannabis medicine and take time to understand your unique health goals — whether you’re managing MS, chronic pain, anxiety, or other conditions.

Visit www.ren-health.com to schedule your Medical Cannabis Evaluation or Consultation today.
Your path to comfort, clarity, and compassionate care starts here.

Fun closing thought

Imagine telling someone: “You know, marijuana has a brain-cell doorbell system (the endocannabinoid system) and we’re using a special key (cannabinoids) to turn down that ‘muscle-spasm alarm’ in MS.”
It sounds a little sci-fi, but modern neurology is part sci-fi… and part human hope.

At REN Health we’re committed to exploring what helps – with integrity, evidence, and the human story.

References

  1. Zajicek J, et al. “Cannabinoids for treatment of spasticity and other symptoms related to multiple sclerosis (CAMS study): multicentre randomised placebo-controlled trial.” Lancet 2003;362(9395):1513-20. PubMed
  2. Collin C, et al. “Randomized controlled trial of cannabis-based medicine in spasticity caused by multiple sclerosis.” Neurology 2007;68(10):812-19. PubMed
  3. Whitebusch A, et al. “Smoked cannabis for spasticity in multiple sclerosis: a randomized, placebo-controlled trial.” Mult Scler. 2012;18(2):200-8. PubMed+1
  4. Filippini G, Minozzi S, Borrelli F, et al. “Cannabis and cannabinoids for people with multiple sclerosis.” Cochrane Database Syst Rev. 2022;5:CD013444. Cochrane
  5. Van Amerongen G, et al. “Whole plant cannabis extracts in the treatment of spasticity in multiple sclerosis: a systematic review.” BMC Neurol. 2009;9:59. BioMed Central
  6. VeryWell Health. “Spasticity as a Symptom of Multiple Sclerosis.” 2012. Verywell Health
  7. Minnesota Department of Health, “Severe and Persistent Muscle Spasms…” Dosing report. Minnesota Department of Health
  8. Cannaspecialists.org. “Cannabinoid-Based Therapy for the Treatment of Multiple Sclerosis.” Canna Specialists

Thank you for reading! At REN Health, we believe that informed patients and families are the strongest allies in pursuing better quality of life. If you’re curious, talk with your healthcare team and keep asking good questions.