Anatabine is always good in any situation where the immune system is overreacting. Immune system works on feedback circuits and anatabine breaks it from endlessly looping back on itself and getting hung up or even spiraling out of control. One of the things covid does is cause sepsis which is a cytokine storm gone off the rails. Once it gets started you have very little time to stop it before it kills you. I know of nothing else other than anatabine. You have to break the feedback circuit. Doctors have nothing. They basically cross their fingers and pray. So if you get covid, start taking anatabine like it's candy. You're keeping your immune system from doing you in.
The other thing that happens with covid is it causes your red blood cells to clump together. When they clump together they give up their oxygen and turn white. They first start as small clumps that over time get bigger. Interestingly the clumping together does not in anyway damage the red blood cells. They simply stop working. It's why you get the low oxygen levels. It turns out that ivermectin almost instantaneously on contact causes them to unclump where upon they go back to working as if nothing had happened.
I haven't looked into long covid very much, but could it be that it is caused by the red blood cells on their own over time not unclumping after the body gets rid of covid? The other possibility is stuck feedback circuits in your immune system which can just be the luck of the draw on genetics. Normally if nothing ever "triggers" it, it may never ever effect you. Something comes along and triggers it, it may than get stuck and then you are just screwed. In that case anatabine would work great. You have to get your immune system to behave itself.
One thing with anatabine, if it doesn't seem to be working, you can always temporarily up the dose to get your immune systems attention, and then once under control, reduce it back to a maintenance dose.
