-aspirin, especially in higher doses
-certain medicines that treat or prevent blood clots like warfarin, heparin, enoxaparin, dalteparin, apixaban, dabigatran, and rivaroxaban
-clopidogrel
-dipyridamole
-NSAIDs, medicines for pain and inflammation, like ibuprofen or naproxen
-ticlopidine

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

-bleeding disorders
-bleeding in the brain
-eye disease, vision problems
-history of low blood counts caused by a medicine
-liver disease
-stomach or intestine problems
-take medicines that treat or prevent blood clots
-an unusual or allergic reaction to pentosan, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Visit your healthcare professional for regular checks on your progress. You may need blood work done while you are taking this medicine. Your condition will be monitored carefully while you are receiving this medicine. It is important not to miss any appointments.
This medicine can cause serious eye damage. Tell your health care provider right away if you have changes in your eyesight. Within 6 months of starting this medicine, you should have a retinal eye exam. If you take this medicine long term, you will need regular eye exams.
This medicine may increase your risk to bruise or bleed. Call your health care professional if you notice any unusual bleeding.
Avoid sports and activities that might cause injury while you are using this medicine. Severe falls or injuries can cause unseen bleeding. Be careful when using sharp tools or knives. Consider using an electric razor. Take special care brushing or flossing your teeth. Report any injuries, bruising, or red spots on the skin to your healthcare professional.
If you are going to need surgery or a procedure, tell your healthcare professional that you are using this medicine.

Keep out of the reach of children and pets.
Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Get rid of any unused medicine after the expiration date.
To get rid of medicines that are no longer needed or have expired:

-Take the medicine to a medicine take-back program. Check with your pharmacy or law enforcement to find a location.
-If you cannot return the medicine, check the label or package insert to see if the medicine should be thrown out in the garbage or flushed down the toilet. If you are not sure, ask your health care provider. If it is safe to put it in the trash, empty the medicine out of the container. Mix the medicine with cat litter, dirt, coffee grounds, or other unwanted substance. Seal the mixture in a bag or container. Put it in the trash.