Report Detox during Abx Tx in PANS / PANDAS (Lyme included) Posted February 24, 2015 Some abx should not be taken within two hours of magnesium. Similarly, nothing should be taken within two hours of charcoal. The abx my kiddo is on (biaxin and augmentin) are fine with magnesium. Doxy, minocycline and several others are bound to magnesium and thus not absorbed properly. Check on drugs.com or post what abx your kiddo is on and someone will let you know if they are okay with magnesium or not.