Supplement–drug interactions
Supplements That Interact with Oral medications (general — separate dosing)
4 supplements in NutriDex have a known or theoretical interaction with oral medications (general — separate dosing), including 1 best avoided entirely. Grouped by severity below; each links to its full evidence, dosing & mechanism. This is educational and not exhaustive — always tell your doctor or pharmacist about every supplement you take before combining it with medication.
Avoid — do not combine 1
Activated charcoal adsorbs many oral drugs and can markedly reduce their absorption and effect.
Caution — use only with medical guidance 2
Highly viscous fiber can reduce/delay absorption of medications taken at the same time.
Viscous fiber can slow/reduce absorption of co-taken drugs; take meds 1–2 h before or 2–4 h after.
Monitor — watch for effects 1
Raising stomach/urine pH can reduce or alter absorption and change excretion of some oral drugs; separate dosing.
Each supplement links to its full evidence, dosing, mechanism & citations. See also all medication interaction guides →