L-Methylfolate Forte 15mg Capsules
It is used to aid diet needs.
Drug Class
Medical Food; Nutritional Supplement; Vitamin
Pharmacologic Class
Folate Derivative; B Vitamin
Pregnancy Category
Category A (for Folic Acid, L-Methylfolate is the active form and generally considered safe and beneficial)
FDA Approved
Jan 1970
DEA Schedule
Not Controlled
Overview
What is this medicine?
L-Methylfolate is a special form of the B vitamin called folate. It's important for your body to make healthy red blood cells, for brain and nerve function, and to help your body process certain chemicals. It's often used when your body has trouble using regular folic acid, or for conditions like depression or nerve pain.
How to Use This Medicine
Taking Your Medication
To use this medication correctly, follow your doctor's instructions and read all the information provided. Take your medication as directed, with or without food. Continue taking it even if you feel well, unless your doctor or healthcare provider advises you to stop.
Storing and Disposing of Your Medication
Store your medication at room temperature, protected from light and moisture. Keep it in a dry place, away from the bathroom. Ensure all medications are stored safely and out of reach of children and pets. When disposing of unused or expired medication, do not flush it down the toilet or pour it down the drain unless instructed to do so. Instead, check with your pharmacist for guidance on proper disposal or participate in a local drug take-back program if available.
Missing a Dose
If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take two doses at the same time or take extra doses to make up for the missed one.
To use this medication correctly, follow your doctor's instructions and read all the information provided. Take your medication as directed, with or without food. Continue taking it even if you feel well, unless your doctor or healthcare provider advises you to stop.
Storing and Disposing of Your Medication
Store your medication at room temperature, protected from light and moisture. Keep it in a dry place, away from the bathroom. Ensure all medications are stored safely and out of reach of children and pets. When disposing of unused or expired medication, do not flush it down the toilet or pour it down the drain unless instructed to do so. Instead, check with your pharmacist for guidance on proper disposal or participate in a local drug take-back program if available.
Missing a Dose
If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take two doses at the same time or take extra doses to make up for the missed one.
Lifestyle & Tips
- Take as directed by your healthcare provider.
- Can be taken with or without food.
- Continue to eat a balanced diet rich in fruits, vegetables, and whole grains.
- Inform your doctor about all other medications and supplements you are taking.
Available Forms & Alternatives
Dosing & Administration
Adult Dosing
Standard Dose:
15 mg orally once daily
Dose Range:
7.5 - 15 mg
Condition-Specific Dosing:
depression_augmentation:
7.5 mg to 15 mg once daily
diabetic_neuropathy:
15 mg once daily
hyperhomocysteinemia:
7.5 mg to 15 mg once daily
Pediatric Dosing
Neonatal:
Not established for this specific dose; lower doses of folate are used for specific conditions.
Infant:
Not established for this specific dose; lower doses of folate are used for specific conditions.
Child:
Not established for this specific dose; lower doses of folate are used for specific conditions.
Adolescent:
Not established for this specific dose; lower doses of folate are used for specific conditions.
Dose Adjustments
Renal Impairment:
Mild:
No specific adjustment needed
Moderate:
No specific adjustment needed
Severe:
No specific adjustment needed
Dialysis:
No specific adjustment needed; folate is water-soluble and may be removed by dialysis, but supplementation is generally based on clinical need.
Hepatic Impairment:
Mild:
No specific adjustment needed
Moderate:
No specific adjustment needed
Severe:
No specific adjustment needed
Pharmacology
Mechanism of Action
L-Methylfolate is the primary biologically active form of folate, essential for numerous bodily functions, including DNA synthesis and repair, red blood cell production, and the methylation cycle. It acts as a methyl donor in the conversion of homocysteine to methionine, a precursor to S-adenosylmethionine (SAMe), which is crucial for the synthesis of monoamine neurotransmitters (serotonin, norepinephrine, dopamine). Unlike folic acid, L-methylfolate bypasses the dihydrofolate reductase and methylenetetrahydrofolate reductase (MTHFR) enzyme steps, making it directly available for metabolic processes, particularly beneficial in individuals with MTHFR polymorphisms.
Pharmacokinetics
Absorption:
Bioavailability:
High (nearly 100% for L-methylfolate)
Tmax:
Approximately 1-3 hours
FoodEffect:
Minimal to none; can be taken with or without food.
Distribution:
Vd:
Widely distributed throughout body tissues
ProteinBinding:
Low
CnssPenetration:
Yes (actively transported across the blood-brain barrier)
Elimination:
HalfLife:
Approximately 3 hours (for the active form in plasma)
Clearance:
Not readily quantifiable as a drug clearance; primarily utilized in metabolic pathways.
ExcretionRoute:
Renal (excess and metabolites)
Unchanged:
Small amounts
Pharmacodynamics
OnsetOfAction:
Gradual (nutritional effects are not immediate, clinical benefits may take weeks)
PeakEffect:
Not applicable in the same way as a drug; sustained physiological effect.
DurationOfAction:
Sustained as long as supplementation continues and metabolic needs are met.
Safety & Warnings
Side Effects
Serious Side Effects: Seek Medical Attention Immediately
Although rare, this medication can cause severe and potentially life-threatening side effects. If you experience any of the following symptoms, contact your doctor or seek medical help right away:
* Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Other Possible Side Effects
Like all medications, this drug can cause side effects. However, many people do not experience any side effects or only have mild ones. If you have side effects that bother you or do not go away, contact your doctor for advice.
Reporting Side Effects
This list does not include all possible side effects. If you have questions or concerns about side effects, contact your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Although rare, this medication can cause severe and potentially life-threatening side effects. If you experience any of the following symptoms, contact your doctor or seek medical help right away:
* Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Other Possible Side Effects
Like all medications, this drug can cause side effects. However, many people do not experience any side effects or only have mild ones. If you have side effects that bother you or do not go away, contact your doctor for advice.
Reporting Side Effects
This list does not include all possible side effects. If you have questions or concerns about side effects, contact your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Signs of allergic reaction (e.g., rash, itching, swelling, severe dizziness, trouble breathing) - seek immediate medical attention.
- Unexplained numbness, tingling, or weakness (could indicate B12 deficiency, which folate can mask).
Before Using This Medicine
Before Taking This Medication: Important Information to Share with Your Doctor
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the symptoms you experienced as a result of the allergy.
All medications you are currently taking, including prescription and over-the-counter (OTC) drugs, natural products, and vitamins. This information will help your doctor and pharmacist identify potential interactions between this medication and other substances you are taking.
* Any existing health problems, as this medication may interact with certain conditions.
To ensure your safety, it is crucial to verify that it is safe to take this medication with all your current medications and health conditions. Never start, stop, or adjust the dosage of any medication without first consulting your doctor.
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the symptoms you experienced as a result of the allergy.
All medications you are currently taking, including prescription and over-the-counter (OTC) drugs, natural products, and vitamins. This information will help your doctor and pharmacist identify potential interactions between this medication and other substances you are taking.
* Any existing health problems, as this medication may interact with certain conditions.
To ensure your safety, it is crucial to verify that it is safe to take this medication with all your current medications and health conditions. Never start, stop, or adjust the dosage of any medication without first consulting your doctor.
Precautions & Cautions
It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication. Regular blood tests will be necessary, as directed by your doctor, to monitor your condition. If you have any concerns or questions, be sure to discuss them with your doctor.
If you are allergic to tartrazine, also known as FD&C Yellow No. 5, consult your doctor before taking this medication, as some products may contain this ingredient.
When taking cholestyramine or colestipol, it is crucial to consult with your pharmacist to determine the best way to take these medications in conjunction with this drug to ensure safe and effective use.
If you are pregnant, planning to become pregnant, or are breastfeeding, it is vital to discuss the potential benefits and risks of this medication with your doctor, as they will need to weigh the advantages and disadvantages for both you and your baby.
If you are allergic to tartrazine, also known as FD&C Yellow No. 5, consult your doctor before taking this medication, as some products may contain this ingredient.
When taking cholestyramine or colestipol, it is crucial to consult with your pharmacist to determine the best way to take these medications in conjunction with this drug to ensure safe and effective use.
If you are pregnant, planning to become pregnant, or are breastfeeding, it is vital to discuss the potential benefits and risks of this medication with your doctor, as they will need to weigh the advantages and disadvantages for both you and your baby.
Overdose Information
Overdose Symptoms:
- L-Methylfolate has very low toxicity, and overdose is rare. However, extremely high doses might theoretically mask the symptoms of Vitamin B12 deficiency, leading to progressive neurological damage if B12 deficiency is not addressed.
What to Do:
If overdose is suspected or severe symptoms occur, contact a poison control center immediately (e.g., call 1-800-222-1222 in the US) or seek emergency medical attention.
Drug Interactions
Major Interactions
- Methotrexate (folate antagonist, L-methylfolate may reduce its efficacy or be used as rescue therapy)
- Anticonvulsants (e.g., Phenytoin, Phenobarbital, Primidone - L-methylfolate may decrease their serum concentrations, potentially reducing seizure control)
Moderate Interactions
- Sulfasalazine (may impair folate absorption)
- Trimethoprim (folate antagonist)
- Pyrimethamine (folate antagonist)
- Cholestyramine (may impair folate absorption)
- Oral Contraceptives (may affect folate metabolism, though clinical significance is usually minor)
Monitoring
Baseline Monitoring
Vitamin B12 levels (serum cobalamin)
Rationale: To rule out or address underlying Vitamin B12 deficiency, as high doses of folate can mask the hematological symptoms of B12 deficiency while neurological damage progresses.
Timing: Prior to initiation of L-methylfolate therapy.
Homocysteine levels
Rationale: If indicated, to assess baseline methylation status, especially in conditions like cardiovascular disease risk or MTHFR polymorphisms.
Timing: Prior to initiation, if relevant.
Routine Monitoring
Clinical response (e.g., mood, neuropathy symptoms)
Frequency: Ongoing, as clinically indicated
Target: Improvement in target symptoms
Action Threshold: Lack of improvement or worsening of symptoms may require re-evaluation of diagnosis or treatment plan.
Vitamin B12 levels
Frequency: Periodically, especially if symptoms of B12 deficiency emerge or persist, or if patient is at risk.
Target: Normal range
Action Threshold: Low B12 levels require B12 supplementation.
Symptom Monitoring
- Improvement in symptoms of depression (if used as augmentation)
- Improvement in neuropathic pain or symptoms (if used for diabetic neuropathy)
- Resolution of megaloblastic anemia (if due to folate deficiency)
- Monitoring for any signs of allergic reaction (rare)
Special Patient Groups
Pregnancy
Folate (including L-methylfolate) is essential during pregnancy for fetal development, particularly for preventing neural tube defects. Supplementation is highly recommended before and during pregnancy. L-methylfolate is considered safe and beneficial.
Trimester-Specific Risks:
First Trimester:
Crucial for neural tube development; adequate folate intake is vital to reduce risk of defects.
Second Trimester:
Continued importance for fetal growth and development.
Third Trimester:
Continued importance for fetal growth and maternal health.
Lactation
L-methylfolate is considered safe and compatible with breastfeeding. Folate is naturally present in breast milk and is essential for infant growth and development.
Infant Risk:
Low risk; considered beneficial.
Pediatric Use
While folate is essential for children, the 15mg dose of L-Methylfolate Forte is typically reserved for specific medical conditions in adults. Lower doses of folate are used in pediatric populations for deficiency or specific metabolic disorders. Use in children should be under strict medical supervision.
Geriatric Use
Generally safe for use in geriatric patients. May be particularly beneficial for conditions like cognitive decline or neuropathy, as folate deficiency can be more common in older adults. No specific dose adjustment is typically required.
Clinical Information
Clinical Pearls
- L-Methylfolate is the active, bioavailable form of folate, bypassing the need for MTHFR enzyme conversion, making it particularly useful for individuals with MTHFR gene polymorphisms.
- Often used as an adjunctive therapy for major depressive disorder, especially in patients who have not responded adequately to antidepressant monotherapy.
- Can be beneficial in managing neuropathic pain, particularly in diabetic neuropathy, by supporting nerve health and methylation processes.
- Always assess Vitamin B12 levels before initiating high-dose folate supplementation to prevent masking of B12 deficiency symptoms.
- Marketed as a 'medical food' or 'dietary supplement' rather than a prescription drug, which can affect insurance coverage and regulatory oversight.
Alternative Therapies
- Folic acid supplementation (for general folate deficiency)
- Vitamin B12 supplementation (if B12 deficiency is present)
- Other antidepressant augmentation strategies (for depression)
- Other neuropathic pain treatments (for neuropathy)
Cost & Coverage
Average Cost:
$30 - $150+ per 30 capsules (15mg)
Generic Available:
Yes
Insurance Coverage:
Often not covered by standard prescription drug plans as it is classified as a medical food or dietary supplement. Coverage may vary by individual plan or specific medical necessity documentation.
General Drug Facts
If your symptoms or health issues persist or worsen, it's essential to contact your doctor for further guidance. To ensure your safety, never share your medication with others or take someone else's medication. Some medications may come with an additional patient information leaflet, so be sure to check with your pharmacist for more information. If you have any questions or concerns about this medication, don't hesitate to reach out to your doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call your local poison control center or seek medical attention. When seeking help, be prepared to provide details about the medication taken, the amount, and the time it happened.