Do not take Cotellic
If you are allergic to cobimetinib or to any of the other ingredients of this medicine, listed in “What Cotellic contains”. If you are not sure, talk to your doctor or nurse before taking Cotellic.
Warnings and precautions
Talk to your doctor or healthcare professional before you take Cotellic if you have:
- an eye problem
- heart problems
- liver problems.
If any of the above apply to you (or if you are not sure), talk to your doctor or nurse before taking Cotellic.
Eye problems
Cotellic can cause eye problems. Tell your doctor straight away if you get the following symptoms: blurred vision, distorted vision, partly missing vision, or any other changes to your sight during treatment. Your doctor should examine your eyes if you have any new or worsening problems with your sight while you are taking Cotellic.
Heart problems
Cotellic can lower the amount of blood pumped by your heart. Your doctor should do tests before and during your treatment with Cotellic to check how well your heart can pump blood. Tell your doctor straight away if it feels like your heart is pounding, racing or beating unevenly, or if you experience dizziness, lightheadedness, shortness of breath, tiredness, or swelling in the legs.
Liver problems
Cotellic can increase the amount of some liver enzymes in your blood during treatment. Your doctor will do blood tests to check these amounts and monitor how well your liver is working.
Diarrhoea
Tell your doctor straight away if you get diarrhoea. Severe diarrhoea can cause loss of body fluid (dehydration). Follow your doctor’s instructions for what to do to help prevent or treat diarrhoea.
Use in children or adolescents:
Cotellic is not recommended for children and adolescents. The effects of Cotellic in people under the age of 18 years old are not known.
Other medicines and Cotellic
Taking other medicines with Cotellic
Always tell your healthcare professional if you are taking any other medicine. (This includes complementary or traditional medicines.) Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. This is because Cotellic can affect the way some other medicines work. Also, some other medicines can affect the way Cotellic works. Talk to your doctor before taking Cotellic if you are taking:
- itraconazole, clarithromycin, erythromycin, telithromycin, voriconazole, rifampicin, posaconazole, fluconazole, miconazole for some fungal and bacterial infections
- ritonavir, cobicistat, lopinavir, delavirdine, amprenavir, fosamprenavir for HIV infection
- telaprevir for hepatitis C
- nefadozone for depression
- amiodarone for an uneven heartbeat
- diltiazem, verapamil for high blood pressure
- imatinib for cancer
- carbamazepine, phenytoin for fits (seizures)
- St John’s wort a herbal medicine, used to treat depression. This is available without prescription.
Taking Cotellic with food and drink
Avoid taking Cotellic with grapefruit juice. This is because it could increase the amount of Cotellic in your blood.
Pregnancy and breastfeeding
If you are pregnant or breastfeeding, think you might be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
- Cotellic is not to be taken during pregnancy – it may cause permanent harm or birth defects to an unborn baby.
- If you become pregnant during treatment with Cotellic or in the 3 months after your last dose, tell your doctor straight away.
- Do not breastfeed your baby while taking Cotellic.
Contraception
Women of childbearing potential should use two effective methods of contraception, such as a condom or other barrier method (with spermicide, if available) during treatment and for at least 3 months after treatment has finished. Ask your doctor about the best contraception for you.
Driving and using machines
Cotellic can affect your ability to drive or use machines. Avoid driving or using machines if you have problems with your vision e.g. abnormality of the choroid, blurred vision, or retinal detachment or other problems that might affect your ability e.g. if you feel dizzy or tired. Talk to your doctor if you are not sure.
Important information about some of the ingredients of Cotellic
Cotellic contains lactose monohydrate. Patients with the rare hereditary conditions of lactose intolerance should not take Cotellic. Cotellic contains sugar (lactose monohydrate) which may have an effect on the control of your blood sugar if you have diabetes mellitus.