That must be why they give it as a matter of routine to soldiers going to malaria zones.
I was prescribed it when I took a business trip to India. No side effects and I am still alive. The doc didn’t mention that I might die from it. Maybe because the risk was nil.
Church mission trips to Guatemala include this drug in the pre-trip checklist.
I took one every Monday for a year while in Viet Nam. I don’t know the dosage amount but it was a big pill. Got curious one Monday and decided to bite into it. Foulest thing I ever tasted. I’d liken it to a combination of battery acid and alum. Fifty years later I still vividly recall the taste. Even so, it worked. I didn’t get malaria.