| 1 | Feverish patients were dosed with quinine. | |
| 2 | But the malaria parasite has become resistant to chloroquine and quinine. | |
| 3 | Clearing swamps is a better way to tackle malaria than administering quinine. | |
| 4 | "Variations in tryptophan levels in people could potentially determine whether they're going to experience adverse effects from quinine or not, " he told SciDev.Net. | |
| 5 | Researchers may have discovered why the popular antimalarial, quinine, causes debilitating side-effects. |