Tepotinib is used to treat lung cancer. Learn how to use the medication, its common side effects, special precautions to watch out for, and more.
What is this medication for?
Tepotinib is used to treat advanced non-small cell lung cancer caused by an abnormal mesenchymal-epithelial transition factor (MET) gene.
How should I take or use this medication?
Take Tepotinib once a day. Administer with food, at around the same time each day.
Swallow the tablet whole. Do not break, chew or crush the tablet.
Inform your doctor or pharmacist if you have difficulty swallowing.
If you are not able to swallow the tablet whole, Tepotinib may be placed in a cup of non-carbonated water (30mL) and gently stirred with a spoon until the tablet is broken into many small pieces (this tablet will not be completely dissolved). Do not pound to dissolve. Swallow the mixture immediately or within 1 hour. Do not chew the tablet pieces. Rinse the cup with an additional 30mL of water and drink immediately to ensure the full dose is taken. Wash the cup and spoon after each use and keep them separate from other crockery and kitchen utensils.
Do not stop taking your medication without checking with your healthcare professional.
What should I do if I forget to take or use this medication?
If you forget to take a dose, take it as soon as you remember. However, if there are less than 8 hours before the next dose, skip the missed dose and take it at the next scheduled time. Do not take two doses to make up for the missed dose.
If you vomit out a dose of Tepotinib, do not take another dose to make up for it. Take your next dose at the usual time.
What precautions should I take when taking or using this medication?
Inform your healthcare professional if:
You are allergic to this medication or any of the other ingredients of this medication.
You are taking any other medications, including supplements, traditional medications and herbal remedies.
You have any other medical conditions like lung or liver problems.
You should not breastfeed during treatment and for at least 1 week after stopping Tepotinib.
You should not become pregnant during treatment. You should use an effective birth control method during treatment and for at least 1 week after stopping Tepotinib.
If you have a partner who could become pregnant, you should use an effective birth control method during treatment and for at least 1 week after stopping Tepotinib.
What are some common side effects of this medication?
The table below will list some of the common side effects as well as the rare but serious side effects.
Side Effect
Management
Fluid retention
Swelling of ankles and legs due to fluid build-up
You may notice some painless swelling at the lower legs or unusual weight gain.
Avoid standing for long periods.
For mild leg swelling, elevating legs on a foot stool, cushion or pillow may help to improve blood flow and reduce the swelling.
For severe symptoms such as difficulty breathing, with cough, puffy eyes or rapid weight gain, proceed to the A&E department immediately.
Nausea or vomiting
Take small and frequent meals.
Avoid foods / smells that may make you feel nauseous, such as oily, fried or strong-smelling food.
Avoid tight-fitting clothes around the waist.
Your doctor may prescribe medications to help relieve or prevent nausea or vomiting. Take these as instructed.
Diarrhoea (loose and frequent stools)
Drink plenty of clear fluids (at least 2 litres or 8 cups every day).
Eat food that is gentler on the stomach such as porridge or soup.
Avoid milk, dairy products, high-fibre food and oily or spicy food.
Your doctor may prescribe medications to help relieve diarrhoea. Take these as instructed.
If you have mild diarrhoea (less than 4 times a day over your normal) with no fever, take anti-diarrhoea medications (such as. loperamide).
If you have fever, severe diarrhoea (more than 4 times a day) or diarrhoea that does not get better within 24 hours with medication, please proceed to the A&E Department immediately.
Constipation (difficulty in passing stool)
Increase fibre intake by taking more fruits and vegetables (at least 2 servings daily)
Drink enough fluids every day (at least 2 litres) unless otherwise advised by your doctor.
Your doctor may prescribe medications to help relieve or prevent constipation. Take these as instructed.
Poor appetite
Try different flavours of food and small frequent meals.
For poor appetite, try to include nutritional supplements (such as milk supplements) into your diet.
Feeling tired or lack of energy
Do not drive or operate machinery if you are feeling tired.
Eat well and get enough sleep. Prioritize tasks to ensure you make the best use of your energy.
Simple exercise such as walking can help to boost your energy.
Avoid alcohol as this may cause you to feel more tired and drowsy.
Muscle aches and/or joint pain
Mild pain can be relieved by taking Paracetamol.
Do not take Paracetamol if you are having a fever at the same time.
Taking regular warm baths may help.
Inform your doctor if the pain is not better.
Skin rash
Avoid hot showers. Use cool or lukewarm water to bathe.
Apply a moisturizer to areas with dry skin.
Avoid staying out under the sun. Use sunscreen with Sun Protection Factor (SPF) of at least 30 and covered clothing when you are out in the sun.
Please see a doctor immediately if the rashes are painful, blistering, or affect a large area of the body.
Decrease in white blood cell count
This may increase your chances of getting an infection
To reduce risk of infection:
Maintain good hand hygiene. Wash your hands before handling food and after using the toilet.
Avoid crowds and do not go near people who are sick. Wear a mask if necessary.
Eat freshly cooked food. Avoid raw meats, vegetables and eggs, or half-cooked or uncooked food.
Proceed to the A&E department immediately if you have any signs of infection such as fever of 38 °C and above, chills, bad sore throat, pain when you pass urine or have mouth sores or wounds that do not heal.
Avoid taking Paracetamol to relieve fever as this may mask your fever and delay treatment of the infection.
Decrease in red blood cell count
This may cause you to feel tired more easily and have paler skin
Proceed to the A&E department immediately if you have:
Unusual giddiness or light-headedness that does not go away
Severe shortness of breath or rapid breathing
A fast heartbeat while resting
Lung problems
Proceed to the A&E department immediately if you have any new or worsening symptoms of lung problems such as cough, chest pain, or shortness of breath, with fever
Liver problems
Proceed to the A&E department immediately if you experience any:
Dark or tea-coloured urine
Pale or light-coloured stools
Yellowing of skin or eyes
Nausea, vomiting with loss of appetite
Severe stomach pain
Keep your doctor informed about any supplements or over-the-counter medications that you take.
Drug Allergy
Symptoms may include:
Swollen face/eyes/lips/tongue
Difficulty in breathing
Itchy skin rashes over your whole body
If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.
It is normal to experience some side effects from Tepotinib. As discussed with your doctor, taking Tepotinib will be beneficial for your condition. Do not stop taking Tepotinib without checking with your doctor.
What food or medication should I avoid when I take or use this medication?
Avoid eating any raw, uncooked or under-cooked food as your immunity is weakened.
Inform your healthcare professional if you are taking or intend to take any other medication, supplements, traditional medications or herbal remedies.
How should I store this medication?
Store in a cool and dry place, away from direct sunlight. Keep this medication away from children.
How do I throw away this medication safely?
Pack this medication into a black trash bag and seal it tightly before throwing into the rubbish chute or bin.
What else should I know about this medication?
Tips to help manage your condition while you are on Tepotinib?
Exercise
Light exercise is recommended as it helps to improve mobility, balance, and even emotional well-being. Avoid strenuous exercise, and rest when you are feeling tired.
Adequate hydration
Maintain adequate hydration with 2 to 3 litres of fluids per day unless you have been informed by your doctor to restrict fluids. This will decrease your chances of getting constipation and prevent dehydration.
Medical and dental treatment
If you need to go to the hospital for any reason other than cancer, always inform the doctors and nurses that you are receiving anti-cancer treatment.
Talk to your cancer doctor if you think you need dental treatment. Always inform your dentist that you are receiving anti-cancer treatment.
Seek support if you feel overwhelmed
It is normal to feel fearful or worried about your condition.
Do not be afraid to talk about your concerns with your healthcare team or loved ones.
There may be resources and support available to help you.
Disclaimer
Please take note that the above is not a complete list of all possible side effects. If you have any concerns about your medication or if you have other side effects that you think are caused by this medication, please consult your doctor or pharmacist.
If you take more than the recommended dose, please seek medical advice immediately. The information provided on this page does not replace information from your healthcare professional. Please consult your healthcare professional for more information.
This article is jointly developed by members of the National Medication Information workgroup. The workgroup consists of cluster partners (National Healthcare Group, National University Health System and SingHealth), community pharmacies (Guardian, Unity and Watsons) and Pharmaceutical Society of Singapore. The content does not reflect drug availability and supply information in pharmacies and healthcare institutions. You are advised to check with the respective institutions for such information.
Last updated on Apr 2025
This article was last reviewed on
Friday, April 25, 2025