Benfotiamine + Vitamin B9 (Folic Acid) + Vitamin B12 (Methylcobalamin) + Vitamin B6 (Pyridoxine) is a B-vitamin combination supplement that contains benfotiamine (a fat-soluble derivative of vitamin B1 that the body converts to thiamine), folic acid (vitamin B9), methylcobalamin (the active coenzyme form of vitamin B12), and pyridoxine (vitamin B6). It is used to support nerve health, red blood cell formation, and energy metabolism, and is commonly prescribed for peripheral neuropathy, including diabetic peripheral neuropathy.

B vitamins are water-soluble nutrients essential for energy metabolism, red blood cell production, DNA synthesis, and nervous system function. Several B-vitamin deficiencies can cause or worsen peripheral neuropathy, damage to the nerves outside the brain and spinal cord that causes tingling, numbness, burning, and weakness, most commonly in the hands and feet.

Benfotiamine is a synthetic, fat-soluble derivative of thiamine (vitamin B1). Because of its lipid solubility, it crosses cell membranes more readily than standard thiamine and produces higher tissue thiamine levels at equivalent oral doses. Once inside cells, it is converted to thiamine, which acts as a cofactor for several enzymes involved in glucose and energy metabolism.

Folic acid is the synthetic form of folate used in supplements and fortified foods. It is converted in the body to active tetrahydrofolate, which is essential for DNA synthesis, amino acid metabolism, and red blood cell formation.

Methylcobalamin is the active coenzyme form of vitamin B12. It is required for the conversion of homocysteine to methionine, a key step in maintaining nerve myelin (the insulating sheath around nerve fibres). B12 deficiency causes a progressive peripheral neuropathy that can become irreversible if not treated.

Pyridoxine (vitamin B6) is converted in the body to pyridoxal 5-phosphate (PLP), the active form. PLP is a cofactor for over 100 enzymes involved in amino acid metabolism, neurotransmitter synthesis, and haem production.

• To support nerve health in peripheral neuropathy, including diabetic peripheral neuropathy.

• To address the combined deficiency of B vitamins (thiamine, folate, B12, B6).

• As nutritional support in conditions associated with reduced B-vitamin intake or absorption.

• In recovery from alcohol-related neuropathy, under medical guidance.

• To treat B-vitamin deficiency-related macrocytic anaemia.

• Benfotiamine reaches higher tissue thiamine levels than ordinary thiamine due to its fat-soluble structure.

• Methylcobalamin is the active coenzyme form of B12, ready for use by the body.

• Combined B-vitamin supplementation addresses overlapping deficiencies in a single preparation.

• Supports red blood cell production, nerve health, and energy metabolism together.

• Generally well tolerated for daily use under medical guidance.

Common:

• Mild gastrointestinal upset (nausea, stomach discomfort)
• Headache
• Mild itching or rash

Uncommon:

• Loose stools
• Loss of appetite
• Sleep disturbance

Serious side effects requiring immediate attention:

• Severe allergic reaction
• Numbness, tingling, or unsteady walking with prolonged high-dose pyridoxine — paradoxical sensory neuropathy (instead of treating, it causes neuropathy)
• Worsening of pre-existing neurological symptoms

Take Benfotiamine + Vitamin B9 (Folic Acid) + Vitamin B12 (Methylcobalamin) + Vitamin B6 (Pyridoxine) orally with or just after a meal to reduce gastrointestinal upset and improve absorption of benfotiamine. Swallow whole with water. Do not exceed the prescribed dose. Long-term high-dose pyridoxine should be avoided, as it can cause sensory neuropathy, which means the opposite of the symptom this product is meant to treat. Periodic medical review is appropriate for long-term use.

Benfotiamine is absorbed in the small intestine and, because of its fat-soluble structure, crosses cell membranes more efficiently than water-soluble thiamine. Once it reaches inside the cells, it gets converted to thiamine, which then becomes the active coenzyme thiamine pyrophosphate. This coenzyme is essential for enzymes involved in glucose metabolism, including transketolase. In diabetes, the activity of transketolase is reduced, which results in the accumulation of metabolites that damage nerve tissue.

Research reveals that identifying thiamine deficiency early is more important than treating it late, because nerve damage that develops over months can become only partly reversible once established.

Folic acid is reduced to tetrahydrofolate, the active form that carries single-carbon units used in DNA synthesis. Methylcobalamin participates in the methionine synthase reaction, transferring a methyl group from folate to homocysteine. This step is important for methylation reactions, which help maintain nerve myelin. This is why combined B12 and folate deficiency can damage nerves and the spinal cord.

Pyridoxine is converted to pyridoxal 5-phosphate, a cofactor for enzymes involved in amino acid metabolism and the synthesis of neurotransmitters such as serotonin, dopamine, and GABA. It also participates in haem production for red blood cells.

• Meals (BENEFICIAL): Improve absorption of benfotiamine and reduce the chances of gastrointestinal upset.

• Alcohol (CAUTION): Reduces B-vitamin absorption and worsens neuropathy. Limit or avoid alcohol intake while taking Benfotiamine + Vitamin B9 (Folic Acid) + Vitamin B12 (Methylcobalamin) + Vitamin B6 (Pyridoxine).

• Levodopa (without carbidopa) (SEVERE): Pyridoxine reduces levodopa's effect.

• Methotrexate, sulfasalazine, trimethoprim (CAUTION): These act against folic acid and reduce its efficacy. Supplementation may be advised, or the medications may be separated by several hours.

• Anticonvulsants such as phenytoin and phenobarbital (CAUTION): These can reduce folate and B12 levels. Inform your doctor if you take these medications.

• Proton pump inhibitors and metformin (CAUTION): Long-term use reduces B12 absorption.

• Isoniazid and hydralazine (CAUTION): These medications can deplete pyridoxine. Supplementation is often advised.

• Untreated B12 deficiency with neurological symptoms (CONSULT YOUR DOCTOR): Folate alone can mask B12 deficiency anaemia while nerve damage continues.

• Parkinson's disease on levodopa (CAUTION): Pyridoxine can reduce the effect of levodopa when given without carbidopa.

• Diabetes (CAUTION): Monitor glucose; supplementation is supportive, not a replacement for diabetes treatment.

• Significant kidney or liver disease (CAUTION): Dose may need adjustment.

Overdose of Benfotiamine + Vitamin B9 (Folic Acid) + Vitamin B12 (Methylcobalamin) + Vitamin B6 (Pyridoxine) can cause gastrointestinal upset, which may manifest as nausea, vomiting, diarrhea, abdominal cramps, or bloating. Chronic or prolonged use of high-dose pyridoxine can result in sensory neuropathy, worsening the symptoms this product is often used to treat. If there is a suspected overdose, consult a doctor immediately.

If you miss a dose, take it as soon as you remember on the same day with a meal. If it is close to the next dose, skip the missed dose and continue. Do not double the dose.