Pyritinol: Nootropic Benefits, Dosage, & Side Effects


A review of Pyritinol's nootropic benefits and side effects.

Since its inception, Pyritinol has gained acclaim not just as a medical treatment but also as a leading nootropic supplement in the U.S.

This nootropic compound improves memory, focus, and mental energy by modulating neurotransmitters and enhancing brain glucose utilization. Pyritinol’s antioxidant properties protect neurons from damage, while its ability to promote neurogenesis supports brain health.

With a typical dosage of 600 mg daily, pyritinol shows promise in cognitive disorders and as a dietary supplement, though users should be aware of potential side effects and interactions.

What Is Pyritinol?

Pyritinol, also known as pyridoxine disulfide or pyrithioxine, is a semi-synthetic water-soluble analog of vitamin B6 (Pyridoxine) that belongs to the class of pyridine derivatives.

It was produced in 1961 by Merck Laboratories and since the 1970s, it has been a prescription and OTC drug in several countries for cognitive disorders, rheumatoid arthritis, and learning disorders in children. Since the early 1990s, it has been sold as a nootropic dietary supplement in the United States.

Pyritinol is known to improve cognitive functions, such as memory, concentration, and learning capacity. Its exact mechanism of action is not fully understood, but it is thought to modulate neurotransmitter levels and enhance cerebral glucose utilization, thereby improving brain energy metabolism.

What Are the Physical Properties of Pyritinol Compound?

It’s an organic, heterocyclic molecule with the chemical formula C16H20N2O4S2. Pyritinol has a molar mass of 95.10 g/mol, a melting point between 125-127°C, a boiling point of 244°C, and a density of 1.24 g/cm³. This white crystalline solid is soluble in water, alcohol, and ether, and has a characteristic odor.

What Are the Nootropic Benefits of Pyritinol?

Pyritinol enhances cognitive functions such as memory and learning by increasing brain acetylcholine levels. It boosts focus and concentration through the modulation of brain chemicals.

Additionally, pyritinol elevates mental energy and alertness. Its neuroprotective effects and promotion of neurogenesis, through reducing oxidative stress and stimulating growth factors, further contribute to its nootropic benefits.

Overall, you can expect some of the following benefits from pyritinol:

  • Enhances memory function
  • Boosts focus
  • Improves mental energy
  • Preserves neuronal health
  • Alleviates anxiety and depression

Does Pyritinol Improve Memory and Learning?

Pyritinol’s beneficial effects on memory and learning are attributed to an increase in acetylcholine levels within the brain. Acetylcholine is a key neurotransmitter essential for cognitive processes, facilitating the encoding of new memories and the retrieval of stored information.

Does Pyritinol Increase Focus and Concentration?

Pyritinol modulates the activity of neurotransmitters such as dopamine and norepinephrine, which supports a cognitive boost of focus and concentration levels.(1) These neurotransmitters are vital for sustaining attention, promoting alertness, and enhancing the brain’s ability to ignore distractions.

By influencing their activity, pyritinol supports heightened concentration and a more focused mental state, enabling better performance on cognitive tasks.

Does Pyritinol Boost Mental Energy and Alertness?

Pyritinol contributes to improved mental energy and alertness by enhancing mitochondrial function and ATP production in brain cells. Mitochondria are the energy powerhouses of cells, and ATP (adenosine triphosphate) serves as the primary energy carrier.

Optimizing these aspects of cellular metabolism supports overall brain health and function, providing the energy needed for various cognitive processes. This leads to a state of increased mental alertness and the capacity to engage in mentally demanding activities for extended periods.

Does Pyritinol Have Neuroprotective Effects?

Pyritinol exhibits significant neuroprotective properties, crucial for maintaining brain health and combating cognitive decline. Its ability to mitigate inflammation and oxidative stress plays a pivotal role in safeguarding neural tissues against damage, thus potentially delaying or preventing the progression of age-related cognitive impairments and neurodegenerative conditions.

Does Pyritinol Reduce Oxidative Stress in the Brain?

The mechanism by which pyritinol reduces oxidative stress involves its antioxidative action, effectively scavenging harmful free radicals and bolstering the brain’s own antioxidant defenses.

This includes enhancing the activity of critical antioxidant enzymes such as superoxide dismutase and glutathione peroxidase.(2) These enzymes are essential for neutralizing oxidative agents and protecting cells from oxidative damage, a key factor in aging and many neurodegenerative diseases.

Does Pyritinol Promote Neurogenesis?

Pyritinol promotes neurogenesis, the process of generating new neurons, a fundamental aspect of neural plasticity and brain health. It stimulates the expression of brain-derived neurotrophic factor (BDNF) and other growth factors, which are vital for neural development, synaptic plasticity, and the overall resilience of the brain’s neural networks.

BDNF, in particular, plays a critical role in learning, memory, and the regeneration of neurons, contributing to the brain’s ability to adapt and recover from injury.

Does Pyritinol Have Anxiolytic Properties?

Pyritinol exhibits anxiolytic properties, which are attributed to its potential modulation of GABA neurotransmitter activity. GABA is crucial for regulating anxiety and stress responses in the brain, and by enhancing its function, pyritinol can contribute to a reduction in anxiety levels, fostering a sense of calm.

Does Pyritinol Alleviate Depression Symptoms?

In terms of alleviating depression symptoms, pyritinol may increase serotonin levels, a neurotransmitter often associated with feelings of well-being and happiness. This increase, alongside pyritinol’s support for neuronal growth and survival in key brain areas like the hippocampus and prefrontal cortex, plays a vital role in mood regulation and can help mitigate symptoms of depression.

Does Pyritinol Enhance Stress Resilience?

Pyritinol’s ability to enhance stress resilience is linked to its modulation of the hypothalamic-pituitary-adrenal (HPA) axis.(3) The HPA axis orchestrates the body’s response to stress, and by regulating its activity, pyritinol can reduce the production of stress hormones such as cortisol.

This regulatory effect not only helps in managing stress more effectively but also in preventing the long-term adverse effects of chronic stress on the brain and body.

Does Pyritinol Have Any Non-Nootropic Benefits?

Pyritinol offers numerous health benefits beyond cognitive enhancement, including improved digestive function through increased gastric acid production and enzyme stimulation, aiding nutrient absorption.

It supports immune function by activating key immune cells, and aids wound healing by promoting collagen synthesis and new blood vessel formation.(4)

Additionally, pyritinol can stimulate appetite, improve skin health by reducing inflammation and enhancing collagen production, and possess anti-inflammatory qualities that may lower chronic disease risks. It also helps alleviate nausea by modulating neurotransmitter activity.

These multifaceted benefits underscore pyritinol’s potential to promote overall health and well-being.

What Is Pyritinol’s Mechanism of Action?

Pyritinol’s mechanism of action involves several pathways, contributing to its diverse range of effects:

  • Enhancement of Cholinergic Activity: Pyritinol increases acetylcholine levels in the brain, a neurotransmitter essential for memory, learning, and muscle function, by modulating its synthesis or release.
  • Modulation of Neurotransmitter Levels: It influences the activity of neurotransmitters like dopamine and serotonin, which are crucial for mood regulation, attention, and cognitive processing.
  • Antioxidant Properties: Pyritinol acts as an antioxidant, scavenging free radicals and reducing oxidative stress in the brain, protecting neurons from damage.
  • Increased Glucose Utilization: It enhances the brain’s use of glucose, improving energy metabolism and providing more fuel for cognitive processes.
  • Neuroprotective Effects: Pyritinol has been shown to protect neurons from various forms of injury, including those induced by toxins or inflammation, by various mechanisms, including upregulation of neurotrophic factors.
  • Anti-inflammatory Action: It exhibits anti-inflammatory properties by inhibiting certain pathways involved in inflammation, potentially reducing the risk of neurodegenerative diseases and improving overall brain health.
  • Improvement of Blood Flow: Pyritinol may improve cerebral blood flow, enhancing oxygen and nutrient delivery to brain tissues and supporting cognitive function.

These mechanisms collectively contribute to pyritinol’s effectiveness as a nootropic and its potential in treating various cognitive disorders and improving general brain health.

Where To Buy Pyritinol?

To buy pyritinol, consider these avenues:

Online:

  • Nootropics Depot: A reputable online retailer specializing in cognitive enhancers.
  • Pure Nootropics: Known for a wide range of nootropics, including pyritinol.
  • Amazon: Offers a platform for various sellers; ensure to check seller ratings and reviews.

Physical Sources:

  • Local pharmacies in countries where pyritinol is available without a prescription.
  • Specialty health stores or supplement shops in some regions might carry pyritinol or can order it upon request.

Remember to verify the legality of purchasing and importing pyritinol in your country, and consult a healthcare provider for advice tailored to your health needs.

What Are the Potential Side Effects of Pyritinol?

Pyritinol, while generally safe, may cause side effects ranging from nausea to rare autoimmune reactions. It’s contraindicated for individuals with allergies or autoimmune diseases, and for pregnant or breastfeeding women.

Interactions include increased bleeding risk with anticoagulants, altered effects of immunosuppressives, and potential amplification of side effects with other nootropics, supplements, or alcohol.

Is Pyritinol Safe?

Pyritinol’s use requires caution, especially in children, older adults, and individuals with pre-existing medical conditions, due to varying safety and efficacy concerns. Nursing mothers should avoid it because of insufficient safety data.

Given the potential for side effects and interactions with other medications, consulting a healthcare provider is essential for anyone considering pyritinol to ensure its safe and appropriate use based on their health profile.

What Adverse Effects Can Pyritinol Incur?

Pyritinol is generally considered safe for most people when used at recommended dosages, but like any supplement or medication, it can cause side effects in some individuals. The possible side effects of pyritinol include:

  • Nausea and digestive discomfort
  • Headaches
  • Dizziness
  • Insomnia or sleep disturbances
  • Irritability or mood swings
  • Skin reactions, such as rash or itching
  • Increased liver enzymes, indicating potential liver stress (rare)
  • Sensitivity reactions, including autoimmune responses like lupus-like symptoms (very rare)

Most side effects are mild and often resolve with continued use or dosage adjustment. However, severe or persistent side effects should be taken seriously, and pyritinol use should be discontinued if adverse reactions occur.

Are There Any Contraindications or Interactions with Pyritinol?

Yes, pyritinol does have potential contraindications and interactions that should be considered before starting supplementation. Here are some key points:

Pyritinol Contraindications

Pyritinol should be used cautiously or avoided in certain situations due to the potential risks or adverse reactions. These include:

  • Allergy or Hypersensitivity: Individuals with a known allergy or hypersensitivity to pyritinol or its components should avoid it.
  • Autoimmune Diseases: There have been rare reports of pyritinol inducing lupus-like symptoms; individuals with autoimmune conditions should use pyritinol with caution.
  • Pregnancy and Breastfeeding: Due to a lack of research on its safety, pyritinol is not recommended for pregnant or breastfeeding women.

Pyritinol Interactions

Pyritinol can interact with various substances and medications, altering their effects or increasing the risk of side effects. It’s important to be aware of these interactions:

  • Anticoagulants and Antiplatelet Medications: Pyritinol may potentiate the effects of blood thinners like warfarin or aspirin, increasing the risk of bleeding.
  • Immunosuppressive Drugs: Given its potential to modulate the immune system, pyritinol could interact with immunosuppressive medications, affecting their efficacy.
  • Other Nootropics and Supplements: Pyritinol may have additive or synergistic effects when taken with other nootropics or supplements, particularly those that affect neurotransmitter levels or have stimulating properties. This could enhance both the desired effects and the risk of side effects.
  • Alcohol: Combining pyritinol with alcohol may exacerbate side effects like dizziness and drowsiness, and potentially liver stress.

The recommended dosage of Pyritinol is typically 600 mg per day, taken in divided doses with meals. It’s common to take 300 mg twice a day with two separate meals.

However, some sources suggest a dosage of 200 mg three times daily. It’s important to note that it may take 3-4 weeks to observe any therapeutic effect, and the optimum performance is usually seen between the 6th to 12th week of use.

What Is the Optimal Dosage Range for Different Nootropic Effects?

The optimal dosage range for pyritinol may vary depending on the desired nootropic effects and individual factors such as age, weight, and health status.

Generally, doses of 600 mg per day have been used in clinical studies to improve cognitive function, mood, and stress resilience.

Regarding the specific dosages for different benefits and conditions, please find the summarized information in the table format below:

IndicationRecommended DosageFrequency
General Cognitive Enhancement400-600 mgTwice daily
Memory Improvement800-1200 mgTwice daily
Neuroprotective Effects600-800 mgTwice daily
Learning Enhancement800-1200 mgTwice or three times daily
Attention and Focus400-800 mgTwice daily

How To Take Pyritinol for Highest Effectiveness?

To achieve the highest effectiveness;

  • Take pyritinol with meals to enhance absorption and bioavailability.
  • Split the daily dose into smaller portions to maintain stable blood levels.
  • Combine pyritinol with other nootropic compounds for synergistic effects.
  • Adopt a holistic approach including a healthy diet, regular exercise, and stress management to enhance cognitive and mood-boosting benefits.

How long does Pyritinol take to work?

The onset of pyritinol’s effects may vary among individuals, but some studies have reported improvements in cognitive function and mood within 2-4 weeks of consistent use.

Should I cycle Pyritinol?

Cycling pyritinol, meaning taking periodic breaks from its use, may help prevent tolerance build-up and maintain its nootropic effects over time. Some experts recommend cycling pyritinol for 3-4 weeks on and 1-2 weeks off, but the optimal cycling schedule may vary depending on individual factors and goals.

Can I stack Pyritinol with other nootropics?

Pyritinol can be stacked with other nootropic compounds to enhance its cognitive and mood-boosting effects. Some popular nootropic stacks that include pyritinol are:

  • Pyritinol + Choline + B Vitamins: May synergistically improve memory, learning, and mental energy
  • Pyritinol + Bacopa Monnieri + Lion’s Mane: May enhance overall cognitive function and reduce stress and anxiety
  • Pyritinol + L-Theanine + Caffeine: May boost focus, attention, and alertness while promoting relaxation and reducing jitteriness

However, it’s essential to consult with a healthcare professional before combining pyritinol with other nootropics to ensure safety and avoid potential interactions.


Sources, Studies, and Scientific Research
  1. Singh, Alok, and Vinay Purohit. “A critical review of pyritinol.” Drugs & Therapy Perspectives 35.6 (2019): 278-282.
  2. Alkuraishy, Hayder M., Ali I. Al-Gareeb, and Ali K. Albuhadilly. “Vinpocetine and pyritinol: a new model for blood rheological modulation in cerebrovascular disorders—a randomized controlled clinical study.” BioMed research international 2014 (2014).
  3. Hindmarch, I., D. M. Coleston, and J. S. Kerr. “Psychopharmacological effects of pyritinol in normal volunteers.” Neuropsychobiology 24.3 (1990): 159-164.
  4. Hertoghe, Thierry, et al. “Pyritinol–The Antioxidant, Immune-Enhancing, Anti-Rheumatoid Arthritis Nootropic.”

Jacob Kovacs is a cognitive neuroscientist and author at WholisticResearch, specializing in nootropics and neuroactive peptides. His expertise in neuroscience and psychopharmacology bridges cognitive science with drug development. Kovacs’ work focuses on enhancing cognitive functions and brain health through innovative, efficient neuroactive compounds that overcome traditional pharmacokinetic challenges. His contributions are pivotal in advancing the understanding and treatment of neurological diseases.

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