Read the Patient Information Leaflet if available from your pharmacist before you start taking methotrexate and each time you get a refill. If you have any questions, ask your doctor or pharmacist.
Methotrexate is a strong medication. The dosage and how often you take this medication are based on your medical condition and response to treatment. There are many different dosing schedules for this medication (especially for cancer treatment). Taking this medication the wrong way may cause serious side effects, including death. It is very important that you follow your doctor’s instructions carefully. Take this medication by mouth as directed by your doctor.
For the treatment of psoriasis or rheumatoid arthritis, take this medication by mouth as directed by your doctor, usually once a week. It may take up to several months before you get the full benefit of this drug.
If you are using the liquid form of this medication, carefully measure the dose using a special measuring device/spoon. Do not use a household spoon because you may not get the correct dose.
Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of side effects will increase.
Since this drug can be absorbed through the skin and lungs and may harm an unborn baby, women who are pregnant or who may become pregnant should not handle this medication or breathe the dust from the tablets.
Drink plenty of fluids while taking this medication unless your doctor tells you otherwise. Doing so helps your kidneys to remove the drug from your body and avoid some of the side effects.
Nausea, vomiting, stomach pain, drowsiness, or dizziness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Temporary hair loss may occur. Normal hair growth should return after treatment has ended.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: mouth sores, diarrhea, signs of anemia (such as unusual tiredness, pale skin), signs of liver problems (such as dark urine, persistent nausea/vomiting, stomach/abdominal pain, yellowing eyes/skin), easy bruising/bleeding, black stools, enlarged glands/lymph nodes, bone pain, unusual pain and discoloration of the skin, signs of kidney problems (such as change in the amount of urine), dry cough, muscle weakness.
Get medical help right away if you have any very serious side effects, including: weakness on one side of the body, neck stiffness, severe headache, vision changes, irregular heartbeat, mental/mood changes, seizures.
This medication may lower your ability to fight infections. This may make you more likely to get a serious (rarely fatal) infection or make any infection you have worse. Tell your doctor right away if you have any signs of infection (such as fever, chills, persistent sore throat, cough).
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.