I have but not under the same circumstances as you so I don't know how applicable my experience will be. i wouldn't say it's work miracles, but it helps as long as you use it.
I use Regaine ( the male version), as it's generally cheaper, I price watch on Amazon and stock up when it's a good price. I personally find it leave a film on my hair/scalp so I only apply in the evenings, just before bed.
When I wash my hair I use rosemary water (homemade, just boil fresh rosemary then leave to infuse overnight and add to a spray bottle) when my hair is damp and rosemary has been shown to be as effective as minoxidil. I also use The Ordinary hair loss serum on days I'm just going to be home, as again leaves a film on the scalp.
Using all this product, make me anxious about build up, so I use a scalp acid treatment, look at the Inkey List or Bumble & Bumble, once/twice a week.
Regarding Shampoos, I've tried a few for hair loss. Kerastase one is nice but I'm not sure worth it for the price. Nioxin irritated my scalp, Watermans made existing hair grow but no new growth. Grow Gorgeous was ok. Currently using Mark Hill strengthening which is fine.
I take Viviscal and Sea Kelp as well as B12 and Floradix (only the first 2 are hair related but think the latter help with it too).