Artemisinin Combination Therapy (ACTs) like artemether and amodiaquine which are contained in antimalarials like Coartem, Artequick, e.t.c. act by releasing oxidative derivatives in the body to mop up the parasites, but vitamin C acts as an antioxidant which counters the effect of the oxidative derivatives and so the antimalarial effect is not fully achieved.So, please avoid taking antimalarials, Vitamin C (in any form) and blood tonic (iron) together. When you have finished taking the antimalarial (usually 3days), you can commence your vitamin C and blood tonic.Hope you learned something new! POST BY https://pharmbi.wordpress.com/2016/07/08/the-danger-of-taking-antimalarials-vitamin-c-and-blood-tonics-together/