Hi
I was on it for about 1 year. The main problem is yellowing of the skin. In particular soles of feet and nail bed. I stopped taking it in November last year and my fingers are still yellow. I also found I got bruising with it. I think it causes mild bone marrow suppression. Urine can also go yellow. One word of advice regarding quinacrine, do not drink alcohol whilst taking it otherwise you will get this flushing reaction.
Also, it has quite a foul taste, so I would advise a large glass of water whilst taking it. Otherwise It is a good medication, it did work for me for a while. Then unfortunately the problems went around the medication.
Kind regards
Mark