About Unitrexate Injection 50mg/2ml
Helps control severe joint inflammation and certain cancers when other treatments have not worked.
Unitrexate Uses
- Rheumatoid arthritis that has not responded to first line therapy
- Severe, disabling psoriasis unresponsive to other treatments
- Acute lymphoblastic leukemia as part of combination chemotherapy
- Certain solid tumors including choriocarcinoma and osteosarcoma
- Ectopic pregnancy management under specialist supervision
- Severe juvenile idiopathic arthritis in children
Unitrexate Benefits
- Reduced joint damage and swelling in autoimmune arthritis
- Better control of abnormal skin cell turnover in severe psoriasis
- A core component of curative chemotherapy protocols for some cancers
- Lower long term steroid requirements in autoimmune disease
What Experts Say
Methotrexate works by blocking dihydrofolate reductase, an enzyme cells need to build new DNA and divide. Because immune cells in autoimmune disease and cancer cells divide rapidly, this interruption slows them down more than it affects most healthy tissue when the dose is kept low.
For rheumatoid arthritis or psoriasis, rheumatologists and dermatologists typically start with a small once weekly dose, often combined with a folic acid supplement the following day to ease nausea and mouth soreness. In cancer treatment, oncologists use far higher doses under close hospital supervision, with frequent blood counts and liver tests to catch toxicity early.
Mixing up the once weekly arthritis schedule with daily dosing has led to serious, sometimes fatal overdoses, so pharmacists and caregivers should always confirm the frequency printed on the label. Hot weather, dehydration, and the habit of skipping follow up blood tests can quietly raise the risk of kidney and liver strain in people using this injection long term.
Drug Class
- Antimetabolite / Folate Antagonist (DMARD and Antineoplastic)
Unitrexate Uses in Urdu
- یہ انجیکشن جوڑوں کی سوزش اور رمیٹائیڈ گٹھیا کے علاج میں استعمال ہوتا ہے۔
- یہ شدید چنبل یعنی جلد کی بیماری کو قابو میں رکھنے کے لیے دیا جاتا ہے۔
- یہ بعض اقسام کے کینسر کے علاج میں کیموتھراپی کے حصے کے طور پر استعمال ہوتا ہے۔
- ڈاکٹر کی مکمل نگرانی میں ہفتہ وار خوراک کے طور پر تجویز کیا جاتا ہے۔
Unitrexate Injection 50mg/2ml formula
How to use Unitrexate Injection 50mg/2ml?
- Administer only under direct supervision of a specialist doctor or trained nurse.
- Take the prescribed dose exactly once a week for arthritis or psoriasis, never daily.
- Attend all scheduled blood tests to monitor liver, kidney, and bone marrow function.
- Take a folic acid supplement on the days advised by the doctor to reduce side effects.
- Store the vial upright and check the expiry date before every injection.
Drug Interactions
- NSAIDs: Ibuprofen, diclofenac, and similar painkillers can raise methotrexate levels and increase toxicity risk.
- Trimethoprim-sulfamethoxazole: This antibiotic combination increases the risk of severe bone marrow suppression when used together.
- Live vaccines: Vaccines containing live virus should be avoided during methotrexate treatment because immune suppression can allow infection.
- Alcohol: Regular alcohol use significantly raises the risk of liver damage during treatment.
Risks and warnings
- Bone marrow suppression: Methotrexate can lower red cell, white cell, and platelet counts, increasing the risk of infection and bleeding.
- Liver toxicity: Long term use can damage the liver, so regular liver function tests are required, especially with alcohol use.
- Pregnancy risk: This drug is contraindicated in pregnancy because it can cause miscarriage or severe birth defects, and effective contraception is essential during and after treatment.
- Dosing errors: Confusing the weekly arthritis dose with a daily cancer dose has led to fatal overdoses, so the schedule must be double checked at every fill.
- Lung and kidney effects: Rarely, methotrexate can cause lung inflammation or reduce kidney function, requiring prompt medical review of any new breathlessness.
Unitrexate Side Effects
- Nausea and stomach upset
- Mouth ulcers or sore throat
- Fatigue and general weakness
- Hair thinning
- Low blood cell counts
- Liver enzyme elevation
- Increased susceptibility to infections
- Dizziness or headache
Storage Conditions
- Store the injection in a refrigerator between 2 and 8 degrees Celsius.
- Protect the vial from light and do not freeze.
- Discard any unused solution left in an opened vial.
- Keep out of reach of children.
