By the way, beta blockers are easy to get in my country. I don't understand why they have been described as luxury items. But I definitely won't drink 800 mg. Overdose symptoms are dire. I'm sure 200 mg is enough for me.
What country are you from? I'm surprised beta blockers are available OTC in some (Western?) countries.
The conflicting information about beta blockers are making things very confusing for many., including me. The PPH changed the amount you are recommended to take while Stan's guide describes it as luxery,. In addition, I think the PPH is recommending to
crush the pills and swallow them with the SN, which is not practical and doesn't sound like a good idea as the pills need some time to work. In addition, if you do that and you vomit after taking SN, you'll be vomiting out the pills as well.
I personally would take them, but maybe not in such high dosages and some time before taking SN. I think it's a personal choice since different sources are saying different things. From what I understand, it'll make your heart rate go slower so you pass out faster, but the information about the amount you need to take and how much benefit you get from them is conflicting.
What we know for sure though is they are not necessary when taking SN.