What Are The Benefits + Uses Of Methylene Blue?

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You might be surprised to learn that a century-old medication, once used to dye textiles, has become a hot topic in medical research. Methylene blue, first synthesized in 1876, has been used to treat various conditions, from malaria to urinary tract infections. Fast-forward to today, and this versatile compound is being explored for its remarkable anti-aging, neuroprotective, and anti-inflammatory effects.

An Overview Of Methylene Blue

Originally used to treat parasitic infections, methylene blue's medicinal properties were later harnessed to address mental health conditions, such as depression and anxiety. In the 1950s and 60s, it was even used as a psychosomatic medication. However, its use waned with the introduction of newer pharmaceuticals.

Modern Applications

Recently, methylene blue has experienced a resurgence in interest, driven by research into its:

  • Mitochondrial-boosting properties (1)
  • Neuroprotective effects against neurodegenerative diseases (e.g., Alzheimer's, Parkinson's) (1)
  • Anti-aging potential, enhancing cellular health and longevity (1)
  • Antimicrobial activity against bacterial and viral infections (2)
  • Types And What Each Is Used For

  • Methylene Blue Hydrochloride: Malaria, urinary tract infections, parasitic infections
  • Methylene Blue Chloride: Antimicrobial applications, wound healing, skin infections
  • Methylene Blue Trihydrate: Neuroprotective effects, Alzheimer's disease, Parkinson's disease
  • Pharmaceutical-grade Methylene Blue: Medical research, clinical trials, therapeutic applications
  • USP-grade Methylene Blue: Food and Drug Administration (FDA)-approved applications
  • Methylene Blue 3,7-Bis(Dimethylamino) Phenothiazin-5-Ium Chloride: Laboratory research, biochemical studies
  • Delivery Methods:

  • Oral tablets/capsules: Systemic administration
  • Topical creams/gels: Skin infections, wound healing
  • Injectable solutions: Severe infections, emergency situations
  • Sublingual tablets/lozenges: Rapid absorption, localized effects
  • Possible Side Effects

    While generally considered safe, Methylene Blue may cause:

    Common Side Effects:

  • Gastrointestinal issues (nausea, vomiting, diarrhea)
  • Headaches
  • Dizziness
  • Fatigue
  • Urine discoloration (blue-green)
  • Skin rash or itching
  • Less Common Side Effects:

  • Allergic reactions (anaphylaxis)
  • Increased heart rate
  • Blood pressure changes
  • Confusion
  • Seizures (rare)
  • Serious Side Effects:

  • Serotonin syndrome (when combined with SSRIs)
  • Hypotension (low blood pressure)
  • Neuromuscular blockade (muscle weakness)
  • Contraindications:

    The following individuals should avoid taking Methylene Blue or consult with a healthcare professional before use:

  • Pregnant or breastfeeding women
  • Children under 12 years old
  • Severe renal impairment
  • Severe hepatic impairment
  • Glucose-6-phosphate dehydrogenase (G6PD) deficiency
  • History of serotonin syndrome
  • Taking MAOIs, SSRIs, or other serotonin-related medications
  • Dosage And How To Use

    General Guidelines:

  • Consult a healthcare professional before taking Methylene Blue.
  • Follow recommended dosages and administration routes.
  • Typical Dosages:

  • Oral: 50-300 mg/day, divided into 2-3 doses
  • Injectable: 1-2 mL (10-20 mg/mL) IM or IV, as needed
  • Topical: 0.1-1% solution, applied 1-3 times/day
  • Precautions:

  • Start with low doses and gradually increase as needed.
  • Monitor for side effects and adjust dosage accordingly.
  • Avoid taking Methylene Blue with SSRIs or MAOIs.
  • Cycling and Stacking:

  • Cycle duration: 1-3 months
  • Rest period: 1-2 months
  • Stack with other supplements under medical guidance
  • Important Note:

    Methylene blue dosage and administration may vary depending on individual needs and medical conditions. Consult a healthcare professional to determine the best approach.

    Should You Try This Trendy Supplement?

    If you think methylene blue might be a useful addition to your foundational supplement routine, consult a healthcare professional to determine the optimal dosage and administration route.  Always check the label for concentration (0.1-1%), expiration date, and manufacturer reputation. Consider factors like bioavailability, solubility, and formulation (e.g., tablets, capsules, or powder). Be especially cautious of potential interactions with medications, especially SSRIs and MAOIs. Monitor urine color, blood pressure, and side effects. Cycle duration and stacking with other supplements should be done under medical guidance.

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    1. Tucker, D., Lu, Y., & Zhang, Q. (2018). From mitochondrial function to neuroprotection—an emerging role for methylene blue. Molecular neurobiology, 55, 5137-5153.
    2. Cecatto, R. B., de Magalhaes, L. S., Rodrigues, M. F. S. D., Pavani, C., Lino-dos-Santos-Franco, A., Gomes, M. T., & Silva, D. F. T. (2020). Methylene blue mediated antimicrobial photodynamic therapy in clinical human studies: The state of the art. Photodiagnosis and Photodynamic Therapy, 31, 101828.

    The information on this website has not been evaluated by the Food & Drug Administration or any other medical body. We do not aim to diagnose, treat, cure or prevent any illness or disease. Information is shared for educational purposes only. You must consult your doctor before acting on any content on this website, especially if you are pregnant, nursing, taking medication, or have a medical condition.

    Our content may include products that have been independently chosen and recommended by Dr. Will Cole and our editors. If you purchase something mentioned in this article, we may earn a small commission.

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    BY DR. WILL COLE

    Evidence-based reviewed article

    Dr. Will Cole, DNM, IFMCP, DC is a leading functional medicine expert who consults people around the globe, starting one of the first functional medicine telehealth centers in the world. Named one of the top 50 functional and integrative doctors in the nation, Dr. Will Cole provides a functional medicine approach for thyroid issues, autoimmune conditions, hormonal imbalances, digestive disorders, and brain problems. He is also the host of the popular The Art of Being Well podcast and the New York Times bestselling author of Intuitive Fasting, Ketotarian, Gut Feelings, and The Inflammation Spectrum.

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