Nearly all drugs are dangerous wallbrook including hydroxy. It just depends on how much you take. Many are safe at low doses and hydroxy fits that category. A low dose combats malaria. People taking high doses of hydroxy get serious side effects which can be fatal. Those pushing hydroxy as a fix for Covid are also pushing very high dose rates. And even then there is no conclusive evidence that it helps however much various blog sites come up with supposedly reliable evidence that there is. These sites even manage to find a few radical doctors who claim it works, while the other 99% say it doesn't. When you visit your GP wallbrook do you tell him/her that she is just a stooge for the multinational drug companies ? Just askin.
