Penicillin dosage questions

Does anyone know the exact penicillin dosage required for an adult male (33 years old, 180 lbs)? I’ve tested positive for Group B strep in my urethra, urine, and semen.
My wife took ten doses of 2,000,000 units. However, her primary care physician told her my dose should be ten doses of 1,600,000 units, despite me being 20kg heavier than her.😠
I want to kill this infection, not waste time on an ineffective dose.
What’s the move? Where can I find the specific clinical guidelines for penicillin dosing per kilogram of body weight?
🙏🙏🙏

...is anyone actually here?

You only get penicillin if your doctor actually writes you a prescription for it. I mean, what are you even going to do with that info? It’s not like you're just gonna be out here self-medicating and trying to figure out the right dosage on your own...

I couldn't find a better spot for this, so I figured I'd just ask here—does anyone actually know anything about the long-term effects of being over-prescribed penicillin during childhood?

Is penicillin specifically problematic? Not to my knowledge, there aren't any long-term consequences if you're thinking about several years down the line... and what exactly constitutes an excessive dose?