Interactions are not expected.

They need to know if you have any of these conditions:

-heart disease
-history of irregular heartbeat
-liver disease
-lung or breathing disease, like asthma
-muscle aches or weakness
-an unusual or allergic reaction to alectinib, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Tell your doctor or health care professional right away if you have any change in your eyesight.

You may need blood work done while you are taking this medicine.

This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen and lip balm with a SPF 50 or greater during treatment and for at least 7 days after the last dose. Do not use sun lamps or tanning beds/booths.

Do not become pregnant while taking this medicine or for 1 week after the last dose. Men should use effective contraception during treatment and for 3 months after the last dose. Women should inform their doctor if they wish to become pregnant or think they might be pregnant. There is a potential for serious side effects to an unborn child. Talk to your health care professional or pharmacist for more information. Do not breast-feed an infant while taking this medicine or for 1 week after the last dose.

Avoid taking products that contain aspirin, acetaminophen, ibuprofen, naproxen, or ketoprofen unless instructed by your doctor. These medicines may hide a fever.

Be careful brushing and flossing your teeth or using a toothpick because you may get an infection or bleed more easily. If you have any dental work done, tell your dentist you are receiving this medicine.

Call your doctor or health care professional for advice if you get a fever, chills or sore throat, or other symptoms of a cold or flu. Do not treat yourself. This drug decreases your body''s ability to fight infections. Try to avoid being around people who are sick.

This medicine may increase your risk to bruise or bleed. Call your doctor or health care professional if you notice any unusual bleeding.

This drug may make you feel generally unwell. This is not uncommon, as chemotherapy can affect healthy cells as well as cancer cells. Report any side effects. Continue your course of treatment even though you feel ill unless your doctor tells you to stop.

Keep out of the reach of children.
Do not store above 30 degrees C (86 degrees F). Keep this medicine in the original container. Keep this medicine dry and away from light. Throw away any unused medicine after the expiration date.