Galaxy,

You need to suffer hundreds of sub-concussive impacts to cause any real damage. Otherwise, they just cause a relapse of symptoms.

Have you tried cutting the propranolol pills in half ? I cut pills in half all the time. You can buy pill splitters at the drug store. Or, you can just put the pills on the counter and set a knife on them and tap the back of the knife blade. Be careful. Pill splitters work great.