What is Methotrexate?
Methotrexate is an antimetabolite that slows cell growth and reduces immune system activity. It is FDA-approved to treat severe psoriasis, rheumatoid arthritis, and polyarticular juvenile idiopathic arthritis in children.
It is also used in certain cancers, including acute lymphoblastic leukemia and non-Hodgkin lymphoma.
Doctors usually prescribe it to patients whose condition is moderate to severe or has not improved with other treatments.
This treatment may be given as tablets or injections, depending on the condition. It is commonly prescribed to adults with autoimmune diseases and to some children with specific types of arthritis.
Methotrexate works by calming an overactive immune response and slowing down abnormal cell growth. Patients often ask about the price of methotrexate in Canada when exploring treatment options, especially for long-term use.
Indications and Benefits of Methotrexate
Methotrexate is used to treat several inflammatory and cancer-related conditions by slowing cell growth and calming the immune system.
FDA-approved indications:
- Severe psoriasis in adults
- Rheumatoid arthritis in adults
- Polyarticular juvenile idiopathic arthritis in children
- Acute lymphoblastic leukemia (as part of combination therapy)
- Non-Hodgkin lymphoma (relapsed or refractory cases)
- Mycosis fungoides (cutaneous T-cell lymphoma)
Clinical benefits:
- Around 45% of patients with psoriasis achieve major skin improvement (PASI 75) within 12–16 weeks
- In rheumatoid arthritis, about 32% of patients show significant joint improvement (50% reduction in tenderness)
- Helps reduce pain, swelling, and stiffness in inflammatory conditions
- Slows disease progression and prevents joint or skin damage
- Widely used long-term with consistent clinical response in many patients
Common off-label uses:
- Psoriatic arthritis
- Crohn’s disease
- Certain autoimmune conditions, such as lupus or multiple sclerosis
Drug Information
| Category | Details |
| Brand Name | Jylamvo, Trexall, Xatmep |
| Generic Name | methotrexate |
| Medication Class | Antimetabolite |
| Primary Use | Used to treat severe psoriasis, rheumatoid arthritis, polyarticular juvenile idiopathic arthritis, acute lymphoblastic leukemia, non-Hodgkin lymphoma, and mycosis fungoides |
| Additional Uses / Off-Label | Sometimes used for Crohn’s disease, multiple sclerosis, other autoimmune diseases, and gestational trophoblastic tumors |
| Available Form | Tablet and oral solution |
| Method of Administration | Taken by mouth |
| Available Dosage Strengths | Varies by brand and formulation |
| Dosing Frequency | Depends on the condition and treatment plan. For psoriasis, rheumatoid arthritis, polyarticular juvenile idiopathic arthritis, and some cancer uses, it may be taken once weekly as directed by the doctor |
| Storage Instructions | Store at room temperature away from light, heat, and moisture. Keep out of the bathroom. Oral solution should be discarded 90 days after first opening |
| Pregnancy & Breastfeeding | Should not be used during pregnancy because it may cause severe congenital disabilities or harm to the unborn baby. Do not breastfeed while taking methotrexate and for 1 week after the final dose |
| Major Drug Interactions | Proton pump inhibitors such as esomeprazole, lansoprazole, and omeprazole may interact with methotrexate |
| Manufacturer | Varies by brand and manufacturer |
How It Works
Methotrexate works by slowing down how quickly certain cells in the body grow and divide. It blocks an enzyme called dihydrofolate reductase, which the body needs to make DNA and new cells. In cancer, this helps stop fast-growing cancer cells from multiplying. In conditions like rheumatoid arthritis and psoriasis, it calms an overactive immune system, which helps reduce swelling, pain, and skin buildup.
The effects do not happen right away.
For arthritis and psoriasis, some people start to feel relief in about 3 to 6 weeks, but full benefits may take up to 12 weeks or longer. In cancer treatment, it works more quickly as part of a treatment plan directed by a doctor.
The effects can last as long as the drug is taken regularly, and dosing is often weekly for non-cancer conditions to balance effectiveness and safety.
Brand Name Options
Methotrexate is available under several brand names, including Trexall, Jylamvo, and Xatmep, along with generic versions.
These options contain the same active ingredient but may differ in form, such as tablets or oral solution, and in how they are packaged or dosed.
Generic methotrexate is widely used and is often a more cost-effective option, while brand names may be selected based on specific dosing needs or patient preference.
Methotrexate Doses
Methotrexate dosing depends on your condition and should always follow your doctor’s instructions.
Methotrexate comes in different forms and strengths to match your treatment needs. Tablets are available in low-dose options, while liquid and injectable forms allow more precise dosing. Some patients may also use prefilled or autoinjector devices for easier use at home if prescribed.
What Dosage Strengths Does Methotrexate Come In?
- Tablets: 2.5 mg, 5 mg, 7.5 mg, 10 mg, 15 mg
- Oral solution: 2 mg/mL
- Injection: 25 mg/mL
- Subcutaneous autoinjectors: 7.5 mg, 10 mg, 15 mg, 17.5 mg, 20 mg, 22.5 mg, 25 mg
Dosage Chart
| Condition | Starting Dose | Maintenance Dose | Maximum Dose |
| Rheumatoid Arthritis | 7.5 mg once weekly | Adjust based on response | Not specified |
| Polyarticular Juvenile Idiopathic Arthritis | 10 mg/m² once weekly | Adjust based on response | Not specified |
| Psoriasis | 10 to 25 mg once weekly | Lower than the smallest effective dose | 25 mg once weekly |
| Cancer (ALL, NHL, others) | Varies by treatment plan | Adjusted by the doctor | Varies by regimen |
Usage Guide
Follow these steps to use methotrexate safely and correctly:
How to Take Methotrexate (Oral Forms)
- Take methotrexate exactly on the schedule your doctor gives you. It is often taken once a week, not daily.
- Choose the same day each week to help you remember.
- Swallow tablets with a full glass of water.
- You may take it with or without food.
- If using the liquid form, measure your dose using the provided oral syringe, not a household spoon.
If You Are Using an Injection
- Wash your hands and gather your supplies.
- Check the solution. Do not use it if it looks cloudy or has particles.
- Choose an injection site (such as the thigh or abdomen) and clean the area.
- Inject under the skin as instructed, or follow your provider’s guidance if given another route.
- Dispose of needles safely in a sharps container.
Important Things to Avoid
- Do not take more often than prescribed
- Avoid alcohol due to liver risk
- Limit sun exposure and use protection
- Do not receive vaccines unless approved by your doctor
- Avoid pregnancy and breastfeeding during treatment
How to Know It Is Working
- For arthritis or psoriasis, symptoms may improve in 3 to 6 weeks, with full effect taking longer.
- For cancer, response is monitored through regular checkups and lab tests
- Your doctor will track your progress with blood tests and symptom changes
Side Effects
Methotrexate may cause side effects, which can vary from mild to serious depending on how your body responds.
Common Side Effects (with frequency %)
- Dizziness
- Drowsiness
- Headache
- Swollen or tender gums
- Red or irritated eyes
- Hair loss
Serious Side Effects (Seek Immediate Medical Attention)
- Blurred vision or sudden loss of vision
- Seizures
- Confusion
- Weakness or difficulty moving one or both sides of the body
- Loss of consciousness
Methotrexate may also increase the risk of certain cancers, including lymphoma and skin cancer.
Report any side effects or unusual symptoms to your doctor right away.
Missed Dose
If you miss a dose of methotrexate, contact your doctor as soon as possible for instructions. Because this treatment is often taken once weekly, the timing of your dose is important.
If you remember shortly after your scheduled dose, your doctor may advise you to take it, but do not do so without guidance. If it is close to your next scheduled dose, skip the missed dose and continue with your regular schedule.
Do not take two doses at the same time to make up for a missed dose.
Overdose
An overdose of methotrexate can be serious and requires immediate attention. Symptoms may include nausea, mouth sores, extreme tiredness, fever, unusual bleeding or bruising, infections, or stomach pain.
If an overdose is suspected, call Poison Control at 1-800-222-1222 right away or go to the nearest emergency room. Do not wait for symptoms to worsen.
There is a specific treatment for overdose called leucovorin, which helps protect healthy cells. Other treatments may also be used in a hospital setting, depending on the severity.
Storage Information
Store methotrexate at room temperature (around 20°C to 25°C / 68°F to 77°F) in its original container, tightly closed. Keep it away from light, heat, and moisture, and do not store it in the bathroom.
After opening, the oral solution should be used within 90 days, then safely discarded. Keep all forms out of reach of children.
Do not freeze methotrexate.
For expired or unused medication, do not flush it down the toilet. Use a local medication take-back program or ask your pharmacist for safe disposal options.
Warnings
- Methotrexate should not be used during pregnancy because it can harm the unborn baby. Effective birth control is required during treatment and for a period after stopping.
- It can weaken the immune system, making it harder for the body to fight infections. Patients should watch for signs such as fever or sore throat.
- Long-term use may damage the liver, especially in people who drink alcohol or have liver disease.
- Lung problems can occur, and symptoms like cough or shortness of breath should be reported immediately.
- Severe skin reactions may develop and require urgent medical care.
- The skin may become more sensitive to sunlight, so protection from sun exposure is important.
- Some drugs, including proton pump inhibitors, may increase the risk of side effects when taken with methotrexate.
- It may affect fertility in both men and women.
- Live vaccines should be avoided unless approved by a doctor.
Patients Who Need Extra Caution
Patients with kidney or liver problems need close monitoring because methotrexate may build up in the body and increase the risk of toxicity.
Older adults may also be more sensitive to its effects. Those with low folate levels, existing infections, or weakened immune systems may have a higher risk of complications during treatment.
Monitoring Requirements
Regular lab tests are required to ensure safe use. Blood tests are used to monitor blood cell counts and detect early signs of bone marrow suppression. Liver and kidney function tests help identify organ-related side effects.
Ongoing check-ups allow doctors to adjust treatment and manage any side effects early.
Boxed Warning and Precautions for Methotrexate
| Methotrexate carries a serious FDA Black Box Warning for life-threatening risks. It can cause severe congenital disabilities or death of an unborn baby and must not be used during pregnancy for non-cancer conditions. It may also lead to bone marrow suppression (low blood cells), serious infections, liver damage, lung toxicity, kidney problems, and severe skin reactions. These risks can occur even at low doses if not used correctly. |
Contraindications
Methotrexate should not be used in the following situations:
- Pregnancy (for non-cancer conditions): It can cause severe congenital disabilities or the death of the unborn baby.
- Breastfeeding: Methotrexate can pass into breast milk and may harm the infant.
- Severe hypersensitivity to methotrexate: Patients who have had serious allergic reactions, including anaphylaxis, must not use it.
- Chronic liver disease or alcohol-related liver conditions (for psoriasis or rheumatoid arthritis): These conditions increase the risk of serious liver damage.
- Active alcohol use disorder: Alcohol raises the risk of liver toxicity.
- Blood disorders (such as low white cells, platelets, or anemia): Methotrexate can further suppress bone marrow and worsen these conditions.
Interactions
| Drug / Substance | What Happens | What to Do |
| NSAIDs (e.g., ibuprofen, naproxen) | Can reduce kidney clearance and increase methotrexate levels, raising toxicity risk | Use only if approved by your doctor, and monitor closely |
| Proton Pump Inhibitors (e.g., omeprazole, esomeprazole) | May slow the removal of methotrexate from the body | Avoid or use an alternative if possible |
| Antibiotics (e.g., penicillin, neomycin) | May increase methotrexate levels or reduce absorption | Inform your doctor before starting antibiotics |
| Trimethoprim (TMP) | Increases risk of bone marrow suppression and toxicity | Avoid combination unless directed by a doctor |
| Warfarin and other anticoagulants | May increase bleeding risk due to protein-binding effects | Monitor closely and adjust treatment if needed |
| Phenytoin and valproate | May alter drug levels and increase side effects | Regular monitoring is required |
| Cyclosporine and cisplatin | Can increase kidney toxicity and methotrexate levels | Use with caution and close monitoring |
| Probenecid | Reduces the elimination of methotrexate, increasing the toxicity risk | Avoid or adjust therapy as needed |
Alternatives
| Drug Name | Generic Name | Drug Class | Key Difference from Methotrexate | Best For (patient profile) |
| Skyrizi | risankizumab | Interleukin-23 inhibitor | Targets specific immune pathways instead of broadly suppressing cell growth | Adults with moderate to severe plaque psoriasis or psoriatic arthritis |
| Tremfya | guselkumab | Interleukin-23 inhibitor | Biologic therapy with targeted action on inflammation | Patients with plaque psoriasis or psoriatic arthritis who need targeted treatment |
| Humira | adalimumab | TNF inhibitor | Blocks tumor necrosis factor to reduce inflammation | Patients with rheumatoid arthritis, psoriasis, or Crohn’s disease |
| Enbrel | etanercept | TNF inhibitor | Works by blocking inflammatory proteins rather than affecting cell growth | Patients with autoimmune conditions like rheumatoid arthritis or psoriasis |
| Otezla | apremilast | PDE4 inhibitor | Oral treatment that reduces inflammation without affecting DNA or cell growth | Patients who prefer a non-injection option for psoriasis or psoriatic arthritis |
Cost & Coupons
Buy Methotrexate Online From Canada
The cost of methotrexate can vary depending on where you buy it. In the United States, retail pricing is around $103.99 per month, while Pharma Giant offers methotrexate at $96.95 for a 100-tablet supply, helping reduce your overall monthly cost.
| Source | Price Per Dose | Price Per Month | 3-Month Supply |
| US Retail | ~$1.04 per tablet | ~$103.99 | ~$311.97 |
| Pharma Giant | ~$0.97 per tablet | ~$96.95 | ~$290.85 |
Why Order from Pharma Giant?
- Sourced from licensed Canadian pharmacies
- Requires a valid prescription and pharmacist verification
- Competitive price of methotrexate in Canada compared to the U.S. retail
- Fast shipping to the U.S. with tracking
- Save more with a 3-month supply option
Methotrexate Discounts and Coupons from Pharma Giant
Use code PGSAVE10 at checkout to receive 10% off your first Methotrexate order.
How to Order?
| Step 1: Search for your Methotrexate on the website, choose the correct strength and quantity, then add it to your cart.
Step 2: Enter your contact details, shipping address, and payment information. Create an account if you are a new customer or log in if you already have one. Step 3: If your order includes prescription Methotrexate, upload it directly to the site, email it, or fax it. Over-the-counter items do not require a prescription. Use PGSAVE10 to claim your 10% discount on your first order. |
Pharma Giant’s Guarantee
At Pharma Giant, your safety, quality, and savings come first. We partner only with licensed Canadian pharmacies to provide authentic treatment options at a lower price of methotrexate in Canada compared to many U.S. pharmacies. This helps patients better manage the methotrexate generic cost over time.
You can also order a 3-month supply to reduce the overall methotrexate tablet cost and improve long-term affordability. Every order is reviewed with a valid prescription and checked by a pharmacist to ensure it is safe and appropriate for you.
With Pharma Giant, you get trusted sourcing, reliable service, and competitive pricing, whether you are comparing the cost of methotrexate injection in Canada or oral forms.
Frequently Asked Questions
Buying Methotrexate from Canada
FDA-Prescription, Off-Label Information, and Limitations
Dosage & Administration
Adverse Reactions
Food & Drug Interactions
Storage & Travel
Drug Comparison
Disclaimer
Pharma Giant provides medical information to help you better understand medications and medical conditions.This content is for informational use only and does not replace advice from a licensed medical practitioner. Consult your doctor or pharmacist before starting or changing any medication. All our partners follow strict safety standards set by their country’s health authorities to make sure you receive safe and high-quality medications.
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