Hello
I have gone through your question and understood your concern.
A stroke occurs when the blood supply to your brain is interrupted or reduced. This deprives your brain of oxygen and nutrients, which can cause your brain cells to die.
A stroke may be caused by a blocked artery (ischemic stroke) or the leaking or bursting of a blood vessel (
hemorrhagic stroke). Some people may experience only a temporary disruption of blood flow to their brain (
transient ischemic attack, or TIA).
There are some risc factors for stroke like:
High blood pressure,
Cigarette smoking,
High cholesterol.Diabetes,Being overweight or obese
Physical inactivity,Being age 55 or older and family history of Stroke.
I can say without any doubt that his medications do not cause stroke.
You should know that his treatements with antiaggregants like aspirin and clopidogrel and the blood pressure–lowering medications(amlodipine,carvedilol,hydralazine) and cholesterol lowering agent(atorvastatine) and the diabetes treatement help to prevent a STROKE event.
All his medications are not cause of Stroke.
Anyway my advice is to consult immediately his treating doctor if you brother has uncommon symptoms that may be suggestive of stroke or other diseases.
Hope i have clarified all your doubts.
If you have other questions,feel free and ask.
Take care.
So ,