Methoblastin (Methotrexate)
Complete patient guide for uses, dosage, side effects, and safety information
Quick Facts
What Is Methoblastin Used For?
Methoblastin is a medication that contains methotrexate, primarily used to treat specific cancers, severe psoriasis, and rheumatoid arthritis when other treatments have failed.
Primary Uses
Methoblastin is used to treat various cancers, severe psoriasis, and rheumatoid arthritis.
How It Works
Methoblastin works by inhibiting an enzyme necessary for cell survival, which slows down the growth of rapidly dividing cells in conditions like psoriasis and cancer. In rheumatoid arthritis, it reduces immune system overactivity, alleviating pain and swelling.
Good to know: Methoblastin is not considered addictive.
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How to Take Methoblastin
It's essential to follow your doctor's instructions on how to take Methoblastin.
Dosage Instructions
The dosage of Methoblastin varies based on the condition being treated. For rheumatoid arthritis and psoriasis, it is taken once a week. For cancer, follow your doctor's specific instructions.
What If You Miss a Dose?
If you forget to take a dose, consult your doctor or pharmacist for guidance. Do not take a double dose to compensate for a missed one.
Important: Never take Methoblastin more frequently than prescribed, as overdosing can lead to severe health issues.
Available Tablet Strengths
Side Effects
Like all medications, this medicine can cause side effects. Most are mild and temporary, but some require medical attention.
Common Side Effects
These side effects occur relatively frequently and usually don’t require emergency care:
- Nausea
- Stomach pain
- Fatigue
- Dizziness
- Drowsiness
- Blurred vision
Seek immediate medical attention if you experience:
- Severe allergic reactions
- Persistent cough or difficulty breathing
- Severe skin rash
- Signs of infection (fever, chills)
- Yellowing of the skin or eyes
- Loss of coordination or weakness
Impulse Control Issues
Methoblastin may affect impulse control; consult your doctor if you experience any unusual behaviors.
Important Warnings
There are critical safety considerations when taking Methoblastin.
Who Should Not Take Methoblastin
Do not take Methoblastin if you are allergic to methotrexate, pregnant, breastfeeding, have severe kidney or liver problems, are an alcoholic, or have certain blood disorders.
Medical Conditions to Discuss
Inform your doctor if you have kidney or liver issues, lung problems, diabetes, low folate levels, blood disorders, or are at risk of infections.
Pregnancy and Breastfeeding
Methoblastin can harm an unborn child and should not be taken during pregnancy or breastfeeding. Both partners must use effective contraception during treatment and for several months after.
Elderly Patients With Dementia: Special care should be taken when prescribing Methoblastin to elderly patients, especially those with dementia.
Drug Interactions
Certain medications can interact with Methoblastin, affecting its efficacy.
Grapefruit interaction: Avoid grapefruit as it may interact with Methoblastin.
- Some antibiotics
- Sulphonylureas (diabetes medications)
- Diuretics
- Phenytoin (epilepsy treatment)
- Ciclosporin and azathioprine (immunosuppressants)
- NSAIDs and salicylates (pain relievers)
- Disease modifying antirheumatic drugs (DMARDs)
- Allopurinol and probenecid (gout treatments)
- Theophylline (asthma treatment)
- Cholestyramine (cholesterol-lowering agent)
- Amiodarone (heart disorder treatment)
- Certain cancer medications
- Sulfasalazine (Crohn's disease treatment)
- Other liver-damaging medications
- Retinoids (skin condition treatments)
- Pyrimethamine (malaria treatment)
- Proton pump inhibitors (stomach ulcer treatments)
- Methoxsalen (for severe psoriasis treatment)
Alcohol & Driving
Precautions regarding alcohol consumption and driving while on Methoblastin are important.
Alcohol
Avoid alcohol while taking Methoblastin, as it can increase side effects and risk liver damage.
Driving and Operating Machinery
Be cautious when driving or operating machinery, as Methoblastin may cause dizziness or drowsiness.
Storage
Store Methoblastin in a cool, dry place away from light and moisture, ideally below 25°C, and out of reach of children.
Overdose Information
In case of overdose, seek immediate medical help. Contact the Poisons Information Centre at 13 11 26 or go to the nearest hospital.
Frequently Asked Questions
The time it takes for Methoblastin to show effects can vary depending on the condition being treated.
Consult your doctor for specific guidance on whether to take Methoblastin with food.
Methoblastin is not considered addictive.
Consult your doctor before stopping Methoblastin, as sudden discontinuation may have adverse effects.
No, you should avoid alcohol while taking Methoblastin due to increased risk of side effects.
Weight gain is not commonly reported, but consult your doctor if you have concerns.
Elderly patients should be monitored closely when taking Methoblastin, especially those with dementia.
If you miss a dose, contact your doctor or pharmacist for advice, and do not take a double dose.
Important Disclaimer
This information is intended for general educational purposes only and should not be considered medical advice. Always consult your healthcare provider or pharmacist before starting, stopping, or changing any medication.
If you think you may have a medical emergency, call your doctor or emergency services immediately.