Methotrexate
Metotab is indicated for the treatment of:
Rheumatoid arthritis (RA) is a chronic disease of the joints and connective tissue, characterized by inflammation of the synovial membranes (membranes in the joints). The synovial membranes produce fluid, the function of which is to reduce friction in many joints. The inflammatory state causes thickening of the synovial membrane and swelling of the joint.
Psoriasis is a common, chronic skin disease, characterized by the appearance of red patches covered with thick, dry, silvery, adherent scales.
Metotab modifies and slows down the course of the disease.
Methotrexate, which is a component of Metotab, may also be approved for the treatment of other diseases not listed in this leaflet. In case of further doubts, you should consult a doctor, pharmacist or other healthcare professional and always follow their recommendations.
In the treatment of rheumatoid arthritis and psoriasis, Metotab should be taken only once a week.
Taking too high a dose of Metotab (methotrexate) can be fatal.
You should carefully read the contents of point 3 of this leaflet.
If you have any questions, you should consult a doctor or pharmacist before taking this medicine.
Before starting treatment with Metotab, you should discuss it with your doctor or pharmacist:
Special precautions for the use of Metotab
Methotrexate temporarily disrupts the production of sperm and egg cells; in most cases, this effect disappears. Methotrexate may cause miscarriage and severe birth defects. Female patients should avoid becoming pregnant while taking methotrexate and for at least 6 months after the end of treatment. See also "Pregnancy, breastfeeding and fertility".
Recommended tests and precautions
Severe side effects may occur even after small doses of methotrexate.
To detect them in time, the doctor must perform control tests and laboratory tests.
Before starting treatment
Before starting treatment, a blood test will be performed to check if the patient has a sufficient number of blood cells. Blood tests will also be performed to assess liver function and check for hepatitis. Additionally, the level of albumin (blood protein) in the serum and kidney function will be checked, and an assessment for hepatitis (hepatitis virus infection) will be performed. The doctor may also decide to perform other liver tests, which may include liver imaging or taking a small tissue sample from the liver for a more detailed assessment. Additionally, the doctor may check for tuberculosis and order a chest X-ray or lung function test.
During treatment
The doctor may perform the following tests:
It is very important for the patient to attend these scheduled tests.
If the results of any of these tests show abnormalities, the doctor will adjust the treatment accordingly.
Elderly patients
Elderly patients treated with methotrexate should be under close medical supervision to quickly detect any possible side effects.
Age-related disorders of liver and kidney function and low folate levels in the elderly require the use of relatively low doses of methotrexate.
Other precautions
During treatment with methotrexate, cases of acute pulmonary bleeding have been reported in patients with underlying rheumatologic disease. If the patient experiences hemoptysis, i.e., coughing up sputum with blood, they should immediately consult a doctor.
Methotrexate may affect the immune system, and some vaccines may not work properly while taking methotrexate. If the patient has latent or chronic infections (e.g., shingles, tuberculosis, hepatitis B or C), treatment with methotrexate may cause their exacerbation or worsening.
If the patient has previously had skin problems after radiation therapy (radiation dermatitis) and sunburn, these symptoms may recur during treatment with methotrexate (recall reaction). Exposure to UV radiation during treatment with methotrexate may exacerbate psoriatic lesions.
Lymph node enlargement (lymphoma) may occur. In such cases, treatment should be discontinued.
Diarrhea may be a side effect of Metotab and requires discontinuation of treatment. If the patient experiences diarrhea, they should tell their doctor.
In case of swelling, e.g., of the face, tongue, and/or throat, and/or difficulty swallowing or breathing (anaphylactic shock), the patient should discontinue Metotab and immediately consult a doctor.
In patients with cancer treated with methotrexate, cases of certain brain disorders (encephalopathy/leukoencephalopathy) have been reported. It cannot be excluded that such side effects may occur in the treatment of other diseases.
If the patient, their partner, or caregiver notices new or worsening neurological symptoms, including general muscle weakness, vision disturbances, changes in thinking, memory, and orientation leading to disorientation and personality changes, they should immediately consult a doctor, as these may be symptoms of a very rare, serious brain infection called progressive multifocal leukoencephalopathy (PML).
You should tell your doctor or pharmacist about all medicines you are currently taking or have recently taken, as well as any medicines you plan to take.
The effectiveness of Metotab may be affected if you take certain other medicines:
Vitamin preparations containing folinic acidmay reduce the effectiveness of treatment and should only be taken on the advice of a doctor.
While taking Metotab, you should avoid vaccinations with live vaccines.
While taking Metotab, you should avoid drinking alcohol and excessive amounts of coffee, caffeine-containing beverages, and black tea.
Pregnancy
Do not take Metotab if you are pregnant or trying to become pregnant. Methotrexate may cause birth defects, harm the unborn baby, or cause miscarriage.
This is associated with developmental abnormalities of the skull, face, heart, and blood vessels, brain, and limbs. Therefore, it is very important that female patients who are pregnant or planning to become pregnant do not take methotrexate. If the patient is of childbearing age, it is essential to confirm that she is not pregnant before starting treatment, by taking appropriate measures, e.g., performing a pregnancy test. The patient should avoid becoming pregnant while taking methotrexate and for at least 6 months after the end of treatment, using reliable contraceptive methods throughout this time (see also "Warnings and precautions").
If the patient becomes pregnant while taking methotrexate or suspects that she may be pregnant, she should consult her doctor as soon as possible. The patient should receive advice on the possible harmful effects of treatment on the baby.
If the patient plans to become pregnant, she should consult her doctor, who may refer her to a specialist for advice before planned treatment begins.
Male fertility
Available evidence does not indicate an increased risk of birth defects or miscarriages after the father has taken methotrexate at a dose below 30 mg/week. However, this risk cannot be entirely excluded. Methotrexate may be genotoxic, meaning it may cause genetic mutations. Methotrexate may affect sperm and cause birth defects. Therefore, male patients should avoid fertilizing their partner and should not donate sperm while taking methotrexate and for at least 6 months after the end of treatment.
Breastfeeding
Before starting treatment and while taking Metotab, you should stop breastfeeding.
While taking Metotab, you may experience side effects such as fatigue and dizziness. In some cases, this may negatively affect your ability to drive or perform tasks that require increased attention. If you experience fatigue or drowsiness, you should not drive or operate machinery.
The patient is responsible for deciding whether they are fit to drive or perform tasks that require increased attention. Medicines taken by the patient, due to their effect or side effects, are one of the factors that may affect their ability to perform these tasks safely. The description of the medicine's effect and side effects is presented in other sections of the leaflet. You should read all the information contained in this leaflet, and if you have any doubts, you should consult a doctor or pharmacist.
If you have previously been diagnosed with intolerance to some sugars, you should consult your doctor before taking the medicine.
Dose in rheumatoid arthritis and psoriasis:
Take Metotab only once a week.
The patient, in agreement with their doctor, will determine which day of the week they will take the medicine.
This medicine should always be taken according to the doctor's recommendations. If you have any doubts, you should consult a doctor or pharmacist.
The dose of Metotab is determined by the doctor, individually tailored to the needs of each patient.
Metotab usually starts working after 4-8 weeks in the case of rheumatoid arthritis and after 2-6 weeks in the case of psoriasis. The duration of treatment is determined by the doctor.
If you feel that the effect of Metotab is too strong or too weak, you should consult a doctor or pharmacist.
You should follow the doctor's recommendations regarding dosing. Do not change the dose of the medicine on your own.
If you suspect that you have taken a higher dose of Metotab than recommended, you should immediately consult the doctor who is treating you, who will decide on the appropriate treatment depending on the severity of the poisoning.
Do not take a double dose to make up for a missed dose. You should consult a doctor and take the prescribed dose as soon as possible, and then take the dose once a week.
Like all medicines, Metotab can cause side effects, although not everybody gets them.
The frequency and severity of side effects depend on the dose and frequency of administration of Metotab. Since severe side effects may occur even after small doses of the medicine, it is essential that the doctor regularly monitors the patient's health. The doctor will perform tests to rule out abnormalitiesin blood parameters (e.g., low white blood cell count, low platelet count, lymphoma) and changes in the kidneys and liver.
The most important side effects concern the hematopoietic system and the gastrointestinal tract.
You should immediately tell your doctorif you experience any of the following symptoms, as they may indicate severe, potentially life-threatening side effects that require urgent treatment:
The following are other side effects that may occur:
If you experience any side effects, including any side effects not listed in this leaflet, you should tell your doctor, pharmacist, or nurse. Side effects can be reported directly to the Department of Drug Safety Monitoring of the Office for Registration of Medicinal Products, Medical Devices, and Biocidal Products:
Al. Jerozolimskie 181C, PL-02-222 Warsaw, Tel.: +48 22 49-21-301, Fax: +48 22 49-21-309,
Website: https://smz.ezdrowie.gov.pl .
Side effects can also be reported to the marketing authorization holder.
Reporting side effects will help to gather more information on the safety of the medicine.
The medicine should be stored out of sight and reach of children.
There are no special storage instructions for the medicine.
Do not take Metotab after the expiry date stated on the packaging after the term "Expiry date". The expiry date refers to the last day of the given month.
Medicines should not be disposed of via wastewater or household waste. You should ask your pharmacist how to dispose of medicines that are no longer needed. This will help protect the environment.
Yellow, slightly speckled, round, biconvex tablets. The 10 mg tablets have a score line, which is intended only for marking.
HDPE or PP bottle with a PP cap, containing 10, 30, 50, or 100 tablets.
Not all pack sizes may be marketed.
medac Gesellschaft für klinische Spezialpräparate mbH
Theaterstr. 6
22880 Wedel
Germany
Tel. +49 4103 8006 0
Fax: +49 4103 8006 100
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