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Methotrexate

About methotrexate

Methotrexate is a type of medicine called an immunosuppressant. It slows down your body's immune system and helps reduce inflammation.

It is used to treat inflammatory conditions, including:

  • rheumatoid arthritis
  • psoriasis (including psoriatic arthritis)
  • Crohn's disease

It can also be prescribed for other autoimmune conditions such as sarcoidosis.

Methotrexate is available on prescription only.

It comes as tablets, a liquid that you drink, and pre-filled injection pens or syringes that you inject into your skin. Your specialist doctor may recommend injections if the tablets or liquid are not working for you.

It can also be given as an injection to treat some types of cancer. This is usually done in hospital.

NHS coronavirus advice

As long as you have no symptoms of coronavirus infection, keep taking your prescribed immunosuppressant medicine as usual.

If you develop any coronavirus symptoms, talk to your specialist doctor urgently. They will tell you if you need to stop treatment until these symptoms get better.

Updated: 20 March 2020

Key facts

  • For conditions such as psoriasis, rheumatoid arthritis and Crohn's disease, you'll usually take methotrexate once a week. It's important to take it on the same day each week.
  • You'll get a patient card to record the details of your weekly dose and the day you take it. Keep this with you and show it to any healthcare staff involved in your care.
  • Before and during treatment, you'll have blood tests to check your blood, liver and kidneys.
  • You may also have a chest X-ray and a breathing test to check your lungs before starting treatment.
  • It's important to record how much methotrexate you take and the results of your blood tests. You'll usually get a booklet for this.

Who can and cannot take methotrexate

Methotrexate can be used by adults and children.

Methotrexate is not suitable for some people. Tell your doctor before taking methotrexate if you:

  • have ever had an allergic reaction to methotrexate or any other medicine
  • are pregnant, trying to get pregnant or are breastfeeding
  • have severe liver, kidney, or blood disease
  • have an infection
  • have mouth ulcers, or have been diagnosed with a stomach ulcer or duodenal ulcer
  • are due to have a "live" vaccine (this includes the live flu vaccine usually given to children)

How and when to take methotrexate

If you take methotrexate once a week, take it on the same day each week. There's usually a reminder on your pill packet and patient card, telling you which day to take your medicine.

Doses for inflammatory conditions

For inflammatory conditions such as psoriasis, rheumatoid arthritis and Crohn's disease, the dose will vary. This depends on your condition and blood test results. Always follow the instructions from your doctor.

For rheumatoid arthritis, the usual starting dose is 7.5mg, taken once a week. This can be slowly increased up to 20mg (tablets) or 25mg (pre-filled injection pen or syringe) once a week.

For psoriasis, the usual starting dose is 2.5mg to 10mg, taken once a week. It can be slowly increased up to 30mg once a week.

For Crohn's disease, the usual dose to prevent flare-ups is 10mg to 25mg, taken once a week. This is often called a "maintenance" dose.

If your child is prescribed methotrexate, the doctor will use their height and weight to work out the right dose.

Taking methotrexate tablets

Swallow the tablets whole with a drink of water. You can take your tablets before or after food. Wash your hands after touching the tablets.

Your doctor will tell you how many tablets to take each time. You may have to take up to 10 tablets to make up your dose.

Taking methotrexate liquid

Always use the oral syringe that comes with your medicine to measure your dose. It's important to use this syringe so that you get the right amount.

It's a good idea to have a drink of water after taking your medicine.

Having methotrexate injections

You will usually go to your GP surgery or a hospital outpatient clinic once a week to have your injection.

Alternatively, you may get a pre-filled injection pen or syringe for you to use at home. Your doctor or nurse will show you how to use this.

Methotrexate treatment for cancer

If you're having methotrexate treatment for cancer, a doctor or nurse will usually give you an injection. You may need to have treatment more than once a week and this will be done in hospital.

What if I take too much?

Taking too much methotrexate can cause serious side effects. In some cases it can be fatal.

Store your weekly methotrexate separately, away from any other medicines that you take daily.

If you need to go to A&E, do not drive yourself. Get someone else to drive you or call for an ambulance.

Take the methotrexate packet, or the leaflet inside it, plus any remaining medicine with you.

Taking folic acid

You may be prescribed folic acid tablets while you're taking methotrexate. This is a man-made version of vitamin B9 (also called folate).

Folic acid helps protect the healthy cells in your body and reduces some of the side effects of methotrexate. It can make you less likely to be sick (vomit) or get diarrhoea.

Your doctor will usually start you on one 5mg folic acid tablet, taken once a week. Take it the day after your methotrexate.

If you are still bothered by side effects, your doctor may increase the dose of folic acid. You may need to take 1 tablet 6 times a week, starting the day after you take your methotrexate.

Important

Do not take folic acid on the same day as your methotrexate. It can stop your medicine from working properly.

Tests during treatment

When you first start treatment, you'll have a check-up and blood tests every 1 to 2 weeks. This is to check if the methotrexate is working and if it's causing any side effects.

Your doctor may increase or decrease your methotrexate dose, depending on the results of your tests.

It's important to record how much methotrexate you take and the results of your blood tests. You'll usually get a booklet for this.

Once you and your doctor have found the right dose and your treatment is working well, you'll have a check-up and blood tests every 2 to 3 months.

What if I forget to take it?

If you forget to take a dose, take it as soon as you remember the next day or the day after.

If your dose is more than 2 days late, contact your doctor or the clinic for advice about what to do.

Never take 2 doses together to make up for a missed dose.

Side effects

Like all medicines, methotrexate can cause side effects, although not everyone gets them.

Common side effects

Common side effects may happen in more than 1 in 100 people.

Speak to your doctor if these side effects bother you or do not go away:

  • loss of appetite, feeling or being sick, stomach ache or indigestion
  • diarrhoea
  • headaches
  • feeling tired or drowsy
  • hair loss

Serious side effects

Serious side effects are rare and happen in less than 1 in 10,000 people.

Tell your doctor immediately if you get:

  • yellowing of your skin and whites of your eyes – these may be signs of liver problems
  • a persistent cough, chest pain, difficulty breathing, or you become breathless – these may be signs of inflammation of your lungs
  • swollen hands, ankles or feet, changes to how often you pee or not peeing at all – these may be signs of kidney problems
  • a high temperature, chills, muscle aches, sore throat – these may be signs of an infection
  • bleeding gums, blood in your pee, vomiting blood or unexplained bruising – these may be signs of a blood disorder
  • severe skin rash or blisters on your skin, mouth, eyes or genitals – these may be signs of Stevens-Johnson syndrome

Serious allergic reaction

In rare cases, it's possible to have a serious allergic reaction (anaphylaxis) to methotrexate.

These are not all the side effects of methotrexate. For a full list see the leaflet inside your medicines packet.

How to cope with side effects of methotrexate

What to do about:

  • loss of appetite, feeling or being sick, stomach ache or indigestion – eat simple meals and do not eat rich or spicy food. It can help to eat and drink slowly and have smaller, more frequent meals. If you're being sick, try taking small, frequent sips of water to avoid dehydration. For stomach ache, putting a heat pad or covered hot water bottle on your stomach may help.
  • diarrhoea – drink lots of fluids, such as water or squash, to avoid dehydration. Signs of dehydration include peeing less than usual or having dark strong-smelling pee. Do not take any other medicines to treat diarrhoea without speaking to a pharmacist or doctor.
  • headaches, feeling tired or drowsy – rest and drink plenty of water. Do not take non-steroidal anti-inflammatories (NSAIDs), such as ibuprofen. You can try a painkiller such as paracetamol. Do not drink too much alcohol. Do not drive, cycle or use machinery if you feel tired or drowsy. Speak to your doctor if this does not get better.
  • hair loss – this is unlikely to be permanent. If hair loss bothers you, talk to your doctor. They may be able to lower your dose or recommend a different medicine.

Pregnancy and breastfeeding

Methotrexate and pregnancy

Methotrexate is not recommended in pregnancy.

If you are taking methotrexate and planning a pregnancy in the future, speak to your doctor. They will discuss whether you need to switch to a different medicine before stopping your contraception. Methotrexate can stay in your body for some time, so you need to stop taking methotrexate at least 6 months before trying for a baby.

If you become pregnant while taking methotrexate, do not stop taking your medicine and speak to your doctor as soon as possible. They’ll review your treatment and help you decide what to do next. Your doctor will only prescribe methotrexate for you while you're pregnant if the benefits of the medicine outweigh the chances of it being harmful.

Methotrexate and breastfeeding

Methotrexate passes into breast milk in very small amounts.

If your weekly dose of methotrexate is 25mg or less, it may be possible to breastfeed. However, you must not breastfeed for 24 hours after taking your medicine. Your midwife or health visitor can give you advice about how to feed your baby while you wait 24 hours.

If your weekly dose is more than 25mg, your doctor will talk to you about what’s best for you and your baby. You may still be able to breastfeed if your doctor says it is OK. However it depends on your dose of methotrexate and any other medicines you are taking.

If you breastfeed while taking methotrexate, your baby will have blood tests to check for any side effects.

If you notice that your baby isn't feeding as well as usual, or if you have any other concerns about your baby, talk to your health visitor, midwife or doctor as soon as possible.

For more information about how this medicine could affect you and your baby, read the leaflet on methotrexate on the Best Use of Medicines in Pregnancy (BUMPs) website.

Cautions with other medicines

There are many medicines that affect the way methotrexate works.

Children taking methotrexate must not have a "live" flu vaccine (this usually applies to children aged 2 to 17 years). Adults are given an "inactivated" flu vaccine and this usually does not cause problems with methotrexate.

Tell your doctor if you're taking these medicines before you start methotrexate:

  • non-steroidal anti-inflammatories (NSAIDs) like ibuprofen, or cough and cold remedies containing NSAIDs
  • co-trimoxazole, trimethoprim or other antibiotics for bacterial infections
  • medicines that make you pee more (diuretics), such as indapamide and bendroflumethiazide
  • epilepsy medicines such as phenytoin or levetiracetam
  • theophylline, a medicine used to treat asthma
  • medicines used to treat indigestion, such as omeprazole
  • folic acid or vitamin supplements that contain folic acid (or folate) – this is because your doctor may prescribe folic acid to take with your methotrexate

These are not all the medicines that may affect methotrexate.

Mixing methotrexate with herbal remedies and supplements

Do not take vitamin and mineral supplements or any other products that contain folic acid (folate) if you are already taking folic acid prescribed by your doctor. Check the ingredients on the labels of any supplements.

There is not enough information to say whether it's safe to take other herbal remedies or supplements together with methotrexate. They are not tested in the same way as medicines.

Common questions about methotrexate

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7,731 public posts

methotrexate

i just started my weekly dose of methotrexate injections 4 weeks ago, but i'm feeling the side effects getting much worse: nausea, dizziness, headaches, loss of appetite,drowsiness any advises to decrease this effects or even prevent it??
i just started my weekly dose of methotrexate injections 4 weeks ago, but i'm feeling the side effects getting much worse: nausea, dizziness, headaches, loss of appetite,drowsiness any advises to decrease this effects or even prevent it??
halsey18
in NRAS

Methotrexate

Hi I have just started methotrexate for GPA, I am really drowsy today, i have read to stop ibuprofen but i really need them for the pain, has anyone else had this problem?
Hi I have just started methotrexate for GPA, I am really drowsy today, i have read to stop ibuprofen but i really need them for the pain, has anyone else had this problem?
Linevo
in PMRGCAuk

Methotrexate

I do not like the side effects of Methotrexate, they look terrible. I am worried that taking Prednidone and Methotrexate will lower my immune system to low. This drug scares me.
I do not like the side effects of Methotrexate, they look terrible. I am worried that taking Prednidone and Methotrexate will lower my immune system to low. This drug scares me.
Sadie1024
in PMRGCAuk
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Methotrexate

I would be very grateful if people could tell me about their experiences of moving from prednisolone to methotrexate. Thank you.
I would be very grateful if people could tell me about their experiences of moving from prednisolone to methotrexate. Thank you.
SQQQ
in PMRGCAuk

Methotrexate

Good Afternoon..been on MXT for two years..5mg weekly to 25mg currently..MXT not working..Prednisolone only thing that has any affect..any other treatments/meds i should ask Rheumatologist about on next consultation? Thanks
Good Afternoon..been on MXT for two years..5mg weekly to 25mg currently..MXT not working..Prednisolone only thing that has any affect..any other treatments/meds i should ask Rheumatologist about on next consultation? Thanks
Hidden
in NRAS

Methotrexate

Did anyone on methotrexate observe their cell counts dropping?
Did anyone on methotrexate observe their cell counts dropping?
Jaduvenkat
in NRAS

Methotrexate

Hi all I have been taking methotrexate for around 14 months . I dreaded the first time, but had no real side effects. Initial dose was 15mg , then after 3months was raised to 20mg. The last 6 months or so, I have felt really sick for the next day and a half. Has anyone else had a delayed reaction ?
Hi all I have been taking methotrexate for around 14 months . I dreaded the first time, but had no real side effects. Initial dose was 15mg , then after 3months was raised to 20mg. The last 6 months or so, I have felt really sick for the next day and a half. Has anyone else had a delayed reaction ?
Shoulders1
in NRAS

Methotrexate

I have been on methotrexate for 2 years. 6 months ago due to side effects my consultant advised me to reduce from 8mg to 4 mg. I am experiencing worsening side effects ie: fatigue, ‘being punched’, headaches. Has anyone had these symptoms?
I have been on methotrexate for 2 years. 6 months ago due to side effects my consultant advised me to reduce from 8mg to 4 mg. I am experiencing worsening side effects ie: fatigue, ‘being punched’, headaches. Has anyone had these symptoms?
Loughrig
in PMRGCAuk

Methotrexate

Hello I’m new to the group I have been taking methotrexate from October started on the 15 mg now up to 20 mg but doesn’t seem to be making any difference how long does it usually take before it stats to work I’ve read that it doesn’t work for some people has any body found this
Hello I’m new to the group I have been taking methotrexate from October started on the 15 mg now up to 20 mg but doesn’t seem to be making any difference how long does it usually take before it stats to work I’ve read that it doesn’t work for some people has any body found this
Beachgirl62
in NRAS

Methotrexate

I had a very bad experience with methotrexate, taking as tablets. I felt sicker on a weekly basis with nausea, dizziness and worst of all breathing until I eventually went back to my GP who sent me to hospital! It appears that the methotrexate had also turned against my now very low immune system!
I had a very bad experience with methotrexate, taking as tablets. I felt sicker on a weekly basis with nausea, dizziness and worst of all breathing until I eventually went back to my GP who sent me to hospital! It appears that the methotrexate had also turned against my now very low immune system!
Ladyfairfax
in NRAS

Methotrexate

I'm really the wrong person to ask about methotrexate,I was taking the pills and they made me feel worse than before! It turned out that I was seemingly one in a million that they had an adverse effect on and I ended up hospitalised.
I'm really the wrong person to ask about methotrexate,I was taking the pills and they made me feel worse than before! It turned out that I was seemingly one in a million that they had an adverse effect on and I ended up hospitalised.
Ladyfairfax
in NRAS

Methotrexate

Just felt the need to give a big shout out for methotrexate in helping me get through the bad times, it seems to get a raw deal on here probably because those feeling the benefit from taking it don't feel the need to stick up for it, I've said on other threads after 30 years of suffering from RA almost
Just felt the need to give a big shout out for methotrexate in helping me get through the bad times, it seems to get a raw deal on here probably because those feeling the benefit from taking it don't feel the need to stick up for it, I've said on other threads after 30 years of suffering from RA almost
Pitbull2017
in NRAS

Methotrexate

Hi all Just about to take my first dose of methotrexate and I'm a bit apprehensive. What should I expect within the coming days?
Hi all Just about to take my first dose of methotrexate and I'm a bit apprehensive. What should I expect within the coming days?
Papaloo
in FieryBones - RA Community

Methotrexate and the COVID-19 Vaccine: Should You Stop Taking Methotrexate Temporarily After Getting the Shot?

who kept taking methotrexate (55 percent).
who kept taking methotrexate (55 percent).
lupus-support1Administrator
in LUpus Patients Understanding and Support

Methotrexate prescribed

Have been told to switch from hcq to mtx now. Had dexamthasone IM to help symptoms until mtx starts to work. Haven’t started mtx yet, really frightened of the side effects and feeling unwell at work. Any advice would be appreciated, ss
Have been told to switch from hcq to mtx now. Had dexamthasone IM to help symptoms until mtx starts to work. Haven’t started mtx yet, really frightened of the side effects and feeling unwell at work. Any advice would be appreciated, ss
Sunnyseas
in NRAS

Methotrexate & Vaccine

I've seen a few posts regarding stopping treatment before having the vaccine and had my vaccine yesterday, I was a bit worried as no-one has said to me to stop taking the methotrexate I'm on (20mg).
I've seen a few posts regarding stopping treatment before having the vaccine and had my vaccine yesterday, I was a bit worried as no-one has said to me to stop taking the methotrexate I'm on (20mg).
Garnacha
in NRAS

Rituximab

I have been advised that Methotrexate makes Rituximab work better ....does anybody take Methotrexate with Rituximab please?
I have been advised that Methotrexate makes Rituximab work better ....does anybody take Methotrexate with Rituximab please?
-Mii
in NRAS

Methotrexate injection

I’m due to start on a methotrexate injection but I work full time, the training session is likely to be during a work break so just wondering if there are any side effects how long do these take to kick in as don’t want to be feeling ill at work. Also does it hurt to inject? Thanks in advance.
I’m due to start on a methotrexate injection but I work full time, the training session is likely to be during a work break so just wondering if there are any side effects how long do these take to kick in as don’t want to be feeling ill at work. Also does it hurt to inject? Thanks in advance.
cba84
in NRAS

Methotrexate injection.

I’m due to start on a methotrexate injection but I work full time, the training session is likely to be during a work break so just wondering if there are any side effects how long do these take to kick in as don’t want to be feeling ill at work. Also does it hurt to inject? Thanks in advance.
I’m due to start on a methotrexate injection but I work full time, the training session is likely to be during a work break so just wondering if there are any side effects how long do these take to kick in as don’t want to be feeling ill at work. Also does it hurt to inject? Thanks in advance.
cba84
in Arthritis Action

Hydroxy & methotrexate

Had a call from rheumy nurse yesterday, I’m on MTX but flaring big time so now having hydroxy as well, also having covid vaccine on Saturday, nurse said to miss this weeks mtx & I would receive the prescription for hydroxy next week, then heard this morning tablets will be delivered tomorrow! Assuming
Had a call from rheumy nurse yesterday, I’m on MTX but flaring big time so now having hydroxy as well, also having covid vaccine on Saturday, nurse said to miss this weeks mtx & I would receive the prescription for hydroxy next week, then heard this morning tablets will be delivered tomorrow! Assuming
gilox
in NRAS
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