Is this a blood thinner?
It is an antiplatelet, which is a different kind of blood thinner from an anticoagulant like apixaban. The distinction matters when other clinicians ask what you take — name the drug rather than the category.
Can I take ibuprofen?
Best avoided — it adds substantially to bleeding risk. Paracetamol is the safer choice, and topical anti-inflammatory gels are a reasonable middle ground.
I banged my head but feel fine.
Get assessed anyway. On an antiplatelet, bleeding inside the skull can develop hours later with no early symptoms.
Can I have dental treatment?
Usually yes, without stopping it. Tell your dentist in advance so they can plan.
Why was I told not to take omeprazole?
Because it blocks the enzyme that activates clopidogrel, making it less effective. Lansoprazole and pantoprazole do not have this problem.