The anti-malarial drugs are not all the same. I've taken hydrochloroqine a few times without much side effect. Mefloquine is on a completely other level, at least for some people.
One of my closest friends from university was also a work colleague at the time he went on a recruiting trip to India and his travel doctor prescribed mefloquine for him. It's standard practice to keep taking the drugs for some time (2 weeks, IIRC) after leaving a malarial area, and he was noticeably mentally altered when he returned. He seemed uneasy with his eyes darting around, and he wasn't his normal outgoing self. He seemed a bit paranoid. The incident that brought it all into sharp focus involved a couple of colleagues that were your garden variety gossipy braggarts and I had a minor disagreement with one of them that we resolved quickly, but which prompted my friend to whisper to me "You don't get it. They're not good people." He gave me a look like I was the crazy one for believing the minor argument was resolved. (On the one hand, he was right. I would never trust the one any further than I could throw a fully loaded server rack. However, I still smiled, remained social, and watched my back.) I googled [mefloquine paranoia] and went down a deep rabbit hole. I found out that mefloquine has been suspected in several incidents of peace-keeping troops getting paranoid and attacking unarmed civilians. [mefloquine "freaky Friday"] or [mefloquine "wacky Wednesday"] may be a better search. Also, at least at that time, several sites said that if you had ever taken mefloquine in your life, you were ineligible for one of the front-line malarial treatments should you ever contract the disease.
Due to his mood changes / paranoia, I strongly suggested he talk to his doctor about coming off of his medication after just one week back in the U.S.
> 100F+/35C+ temps
Note that 35 C is below normal body temperature. 100F ~= 37.8 C. I used to donate plasma once a month back when I lived in the U.S. (I'm fortunate enough to not have cytomegalo virus, so newborns, chemo patients, HIV patients, etc. can receive my blood.) My body temperature for my pre-donation check-up was typically 35.8C/96.4F.