What should I tell my care team before I take this medication?
They need to know if you have any of these conditions:
- Dehydration
- Eye disease
- Kidney disease
- Liver disease
- Lung or breathing disease, such as asthma or COPD
- Stomach or intestine problems
- Vision problems
- An unusual or allergic reaction to erlotinib, other medications, foods, dyes, or preservatives
- Pregnant or trying to get pregnant
- Breast-feeding
What may interact with this medication?
- Certain antibiotics, such as ciprofloxacin, clarithromycin, erythromycin, telithromycin
- Certain antivirals for HIV or hepatitis, such as boceprevir, indinavir, nelfinavir, ritonavir, saquinavir
- Certain medications for fungal infections, such as itraconazole, ketoconazole, posaconazole, voriconazole
- Certain medications for seizures, such as carbamazepine, phenobarbital, phenytoin
- Certain medications for stomach problems, such as cimetidine, famotidine, omeprazole, lansoprazole
- Certain medications for tuberculosis, such as rifabutin, rifampin, rifapentine
- Certain medications that prevent or treat blood clots, such as warfarin
- Conivaptan
- Grapefruit juice
- Nefazodone
- St. John's wort
- Teriflunomide
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
What should I watch for while using this medication?
Visit your care team for regular checks on your progress. Tell your care team if your symptoms do not start to get better or if they get worse.
You may need blood work while taking this medication.
This medication may cause serious skin reactions. They can happen weeks to months after starting the medication. Contact your care team right away if you notice fevers or flu-like symptoms with a rash. The rash may be red or purple and then turn into blisters or peeling of the skin. You may also notice a red rash with swelling of the face, lips, or lymph nodes in your neck or under your arms.
Tell your care team right away if you have any change in your eyesight.
Check with your care team if you have severe diarrhea, nausea, and vomiting, or if you sweat a lot. The loss of too much body fluid may make it dangerous for you to take this medication.
If you smoke, tell your care team if you notice this medication is not working well for you. Talk to your care team if you decide to stop smoking.
Talk to your care team if you wish to become pregnant or think you might be pregnant. This medication can cause serious birth defects if taken during pregnancy or for 1 month after the last dose. A reliable form of contraception is recommended while taking this medication and for 1 month after the last dose. Talk to your care team about reliable forms of contraception.
Do not breast-feed while taking this medication and for 2 weeks after the last dose.