Potassium
A mineral the body needs for kidney and heart function, muscle contraction, and nerve transmission.
What it is
Potassium is a mineral found in many foods. The body needs potassium for almost everything it does, including proper kidney and heart function, muscle contraction, and nerve transmission. Potassium chloride is the most common supplement form; other forms include citrate, phosphate, aspartate, bicarbonate, and gluconate. Most dietary supplements provide only small amounts of potassium -- no more than 99 mg per serving.
Known interaction categories
- Insufficient evidence
- Avoid combining
- Monitor
Published interaction pages on this site
Avoid combining (1)
Monitor (3)
Insufficient evidence (31)
- Potassium and AmlodipineInsufficient evidence
- Potassium and AshwagandhaInsufficient evidence
- Potassium and AspirinInsufficient evidence
- Potassium and AtorvastatinInsufficient evidence
- Potassium and CaffeineInsufficient evidence
- Potassium and CalciumInsufficient evidence
- Potassium and CiprofloxacinInsufficient evidence
- Potassium and CopperInsufficient evidence
- Potassium and CoQ10 (Coenzyme Q10)Insufficient evidence
- Potassium and CreatineInsufficient evidence
- Potassium and DoxycyclineInsufficient evidence
- Potassium and EscitalopramInsufficient evidence
- Potassium and Folate / Folic AcidInsufficient evidence
- Potassium and IbuprofenInsufficient evidence
- Potassium and IronInsufficient evidence
- Potassium and LevothyroxineInsufficient evidence
- Potassium and MagnesiumInsufficient evidence
- Potassium and MelatoninInsufficient evidence
- Potassium and MetforminInsufficient evidence
- Potassium and Omega-3 / Fish OilInsufficient evidence
- Potassium and ProbioticsInsufficient evidence
- Potassium and SertralineInsufficient evidence
- Potassium and St. John's WortInsufficient evidence
- Potassium and TurmericInsufficient evidence
- Potassium and Vitamin B12Insufficient evidence
- Potassium and Vitamin CInsufficient evidence
- Potassium and Vitamin DInsufficient evidence
- Potassium and Vitamin EInsufficient evidence
- Potassium and Vitamin KInsufficient evidence
- Potassium and WarfarinInsufficient evidence
- Potassium and ZincInsufficient evidence
Related guides
Sources
Last reviewed 2026-08-22
Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.