I took Malarone and had no noticeable side effects, but, as others have said, the type of medication that is appropriate is different for different regions.
I disagree with those who minimize malaria. My cousin and her husband lived in Kenya for several years. Her husband had malaria several times. No big deal. Apparently, if he felt sick, there were meds to take, and that would be that. However, she didn't have it and was starting to think she was immune somehow.
Then, she returned to Canada to look after our uncle's estate when he died. She started to feel ill and thought she had the flu and didn't pay it too much attention. Then she became extremely ill. She had to be rushed to the hospital. Because she was in Canada, nobody was thinking about malaria. Her renal system shut down. She fell into a coma. Ultimately, she was diagnosed with cerebral malaria. Her daughter was called from across the country, because my cousin wasn't expected to live.
Fortunately, once she was diagnosed correctly and treated, she started to improve. She awoke from her coma and regained some of her kidney function. But it was a close call.
Malaria can often be easily treated if it is diagnosed and treated in time. But the incubation time can mean that one doesn't show symptoms until after one returns home. So, it's important to be aware of this, because it can be deadly.
After seeing what my cousin went through (it took months to recover, and she never fully regained her kidney function), I took the meds when I travelled to Namibia, but only when I was in a higher risk area (not all of Namibia has malaria-carrying mosquitoes).
I also had a friend who died of Dengue fever while he was wintering in Mexico (which he had done for a couple of years). So, when I travel to places where there are risks of serious mosquito-borne illnesses, I take it seriously. There aren't medications to prevent all types of mosquito-borne illnesses (such as Dengue, Zika, and Chikungunya), so avoidance with repellents, clothing, and sleeping nets can be helpful.
I do have permethrin treated clothing, but I find a lot of it to be too hot. I did find some gauzy scarves on Amazon, though, and I like them because they are cool and can be used on my head, as a shawl, as a beach coverup, as a sarong, etc. https://www.amazon.com/Tickled-Pink-Repelling-Classic-Lightweight/dp/B073DQQRZT/ref=sr_1_3?keywords=insect+repellent+scarf&qid=1688482074&sr=8-3