Supplement·Interactions·Reviewed June 9, 2026
Potassium interactions.
Potassium has 75 documented interactions in the NutriStack database: 11 to avoid or watch closely, 36 that need timing or caution, and 28 that work synergistically. The full list, with what each pairing does, is below.
In short
Potassium at a glance.
A quick, data-grounded summary. The full table is below.
Potassium has 75 documented interactions in the NutriStack database: 11 to avoid or watch closely, 36 that need timing or caution, and 28 that work synergistically. The full list, with what each pairing does, is below.
Interactions
Everything that interacts with potassium.
Every supplement and medication in the NutriStack database with a documented interaction with this substance, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Candesartan | Conflict | Candesartan, an angiotensin II receptor blocker, raises serum potassium by reducing aldosterone-driven renal potassium excretion. Combining it with... |
| Captopril | Conflict | Captopril, like other ACE inhibitors, reduces aldosterone secretion and promotes renal potassium retention, raising serum potassium. Adding a... |
| Enalapril | Conflict | Enalapril reduces aldosterone, decreasing potassium excretion. Potassium supplements significantly increase hyperkalemia risk. |
| Eplerenone | Conflict | Eplerenone is a mineralocorticoid receptor antagonist that can raise serum potassium. Adding potassium supplements can push potassium into a... details → |
| Losartan | Conflict | Losartan blocks angiotensin II type 1 receptors, reducing aldosterone secretion and thereby decreasing renal potassium excretion. Adding potassium... details → |
| Perindopril | Conflict | ACE inhibitors such as perindopril reduce aldosterone secretion, decreasing renal potassium excretion. Adding supplemental potassium can produce... |
| Quinapril | Conflict | ACE inhibitors such as quinapril reduce aldosterone secretion, which decreases urinary potassium excretion and raises serum potassium. Adding... |
| Ramipril | Conflict | Ramipril reduces aldosterone secretion, creating significant hyperkalemia risk with potassium supplements. |
| Spironolactone | Conflict | Spironolactone is a potassium-sparing diuretic that blocks aldosterone. Adding potassium supplements creates very high hyperkalemia risk, which can... details → |
| Telmisartan | Conflict | Telmisartan, an angiotensin II receptor blocker, reduces aldosterone secretion and thereby decreases urinary potassium excretion. Co-administration... |
| Valsartan | Conflict | Valsartan blocks AT1 receptors, reducing aldosterone and potassium excretion. Potassium supplementation creates hyperkalemia risk. |
| Albuterol | Caution | Albuterol can temporarily lower serum potassium, especially with repeated nebulizer treatments, continuous therapy, or high-dose use during asthma... details → |
| Benazepril | Caution | Benazepril blocks angiotensin II formation, which lowers aldosterone and reduces renal potassium excretion. Adding a potassium supplement on top of... details → |
| Celecoxib | Caution | Celecoxib can still affect kidney prostaglandins and potassium balance despite its COX-2 selectivity. Potassium supplements increase the potassium... details → |
| Cyclosporine | Caution | Cyclosporine can cause hyperkalemia; potassium supplements or salt substitutes can make it dangerous. |
| Deglycyrrhizinated Licorice (DGL) | Caution | True DGL should have low glycyrrhizin, but contaminated or incompletely deglycyrrhizinated products can lower potassium and cause hypertension. |
| Diclofenac | Caution | Diclofenac can impair kidney potassium excretion, and potassium supplements can make hyperkalemia more likely. Risk is higher during dehydration or... details → |
| Dicyclomine | Caution | Anticholinergic slowing of gastrointestinal transit may increase irritation risk from solid oral potassium products. |
| Digoxin | Caution | Hypokalemia dramatically increases the risk of digoxin toxicity, including life-threatening cardiac arrhythmias. Conversely, hyperkalemia with... details → |
| Enoxaparin | Caution | Enoxaparin and other heparins suppress adrenal aldosterone production, reducing renal potassium excretion and raising serum potassium. Adding... details → |
| Flecainide | Caution | Flecainide has a narrow cardiac safety margin and can cause serious proarrhythmia in susceptible patients. Low potassium is a recognized risk factor... |
| Glycerol | Caution | Hyperhydration protocols can alter electrolyte balance, making unsupervised potassium supplementation risky. |
| Hydroxychloroquine | Caution | Hydroxychloroquine can prolong the QT interval, especially when other risk factors are present. Low potassium is a major modifiable risk factor for... details → |
| Ibuprofen | Caution | Ibuprofen can reduce kidney potassium excretion, and potassium supplements can push serum potassium higher. This is most important if you have... details → |
| IGF-1 LR3 (Long R3 IGF-1) | Caution | Insulin-like signaling can shift potassium into cells during hypoglycemia treatment contexts, making electrolyte self-management unsafe. |
| Irbesartan | Caution | Irbesartan blocks the angiotensin II type 1 receptor, suppressing aldosterone and reducing renal potassium excretion. Combining it with a potassium... details → |
| Ivabradine | Caution | Ivabradine lowers heart rate and has rare reports of torsades de pointes when other risk factors are present. Low potassium increases torsades risk... |
| Lisinopril | Caution | ACE inhibitors like lisinopril reduce aldosterone secretion, which decreases renal potassium excretion and raises serum potassium. Additional... details → |
| Lithium | Caution | Both lithium and potassium are affected by renal excretion mechanisms, and changes in potassium balance can influence lithium handling.... |
| Losartan/Hydrochlorothiazide | Caution | Potassium supplements can cause hyperkalemia from losartan even though hydrochlorothiazide can lower potassium in some patients. |
| Meloxicam | Caution | Meloxicam can reduce renal potassium excretion, and potassium supplements can raise potassium further. Risk is most clinically important with kidney... details → |
| Metoprolol | Caution | Metoprolol alone does not significantly affect potassium levels. However, it is frequently prescribed alongside diuretics (e.g., hydrochlorothiazide... details → |
| Naproxen | Caution | Naproxen can impair kidney potassium handling, and potassium supplements can add enough potassium to cause hyperkalemia in susceptible people. Risk... details → |
| Olmesartan | Caution | Olmesartan blocks the angiotensin II type 1 receptor, suppressing aldosterone and reducing renal potassium excretion. Adding a potassium supplement... details → |
| Ondansetron | Caution | Ondansetron can prolong QT interval, and hypokalemia makes drug-induced torsades de pointes more likely. Vomiting and diarrhea can lower potassium... details → |
| Oxybutynin | Caution | Solid oral potassium chloride supplements can injure the upper gastrointestinal mucosa, and controlled endoscopy studies found more frequent or... details → |
| Penicillin V Potassium | Caution | Penicillin V is formulated as the potassium salt and therefore contributes a small potassium load with each dose. Combining it with high-dose... |
| Sacubitril/Valsartan | Caution | Sacubitril/valsartan combines neprilysin inhibition with angiotensin receptor blockade and meaningfully raises serum potassium by suppressing... details → |
| Sodium Bicarbonate | Caution | Large bicarbonate sodium loads can affect fluid and electrolyte balance, making potassium supplementation context important. |
| Sodium Butyrate | Caution | Sodium butyrate adds sodium to the diet. For individuals on sodium- or potassium-restricted regimens, or taking potassium supplements for... |
| Solifenacin | Caution | Antimuscarinic slowing of gastrointestinal transit may increase mucosal injury risk from solid oral potassium products. |
| Stinging Nettle Root | Caution | Nettle leaf can have diuretic and mineral effects; root products are different, but mislabeled mixed products may affect fluid or electrolyte... |
| Tacrolimus | Caution | Tacrolimus can cause hyperkalemia, and potassium supplements or salt substitutes can make levels dangerous. |
| Tenofovir Disoproxil | Caution | Tenofovir disoproxil-induced proximal renal tubular dysfunction can cause urinary potassium wasting and hypokalemia, sometimes with metabolic... |
| Tolterodine | Caution | Antimuscarinic slowing of gastrointestinal transit may increase mucosal injury risk from solid potassium products. |
| Trimethoprim-Sulfamethoxazole | Caution | Trimethoprim blocks the epithelial sodium channel (ENaC) in the distal nephron, acting similarly to potassium-sparing diuretics like amiloride.... details → |
| Zonisamide | Caution | Potassium citrate or alkali therapy may be used medically for acidosis or stones, but unsupervised potassium can be unsafe. |
| Amiodarone | Synergy | Amiodarone can prolong the QT interval and rarely trigger torsades de pointes. Low potassium greatly increases that risk because it reduces the... details → |
| Bisacodyl | Synergy | Bisacodyl can cause clinically important potassium loss when overused, taken repeatedly for diarrhea-producing laxation, or combined with other... |
| Chlorthalidone | Synergy | Chlorthalidone commonly lowers serum potassium through renal potassium wasting. Potassium supplementation can be clinically useful when levels are... details → |
| Clonidine | Synergy | Potassium supplementation can produce a modest reduction in blood pressure that is generally complementary to clonidine therapy in hypertensive... |
| Dexamethasone | Synergy | Dexamethasone can precipitate hypokalemia or hypokalemic periodic paralysis in susceptible patients, even though it has little mineralocorticoid... details → |
| Dofetilide | Synergy | Dofetilide prolongs the QT interval and can cause torsades de pointes, particularly when potassium is low. Maintaining normal serum potassium is a... details → |
| Fluconazole | Synergy | Hypokalemia is a major risk factor for QT prolongation and torsades de pointes, and fluconazole independently prolongs the QT interval. Patients on... details → |
| Furosemide | Synergy | Furosemide is a potent loop diuretic that can cause clinically important potassium wasting. Severe hypokalemia can be life-threatening, but... details → |
| Haloperidol | Synergy | Hypokalemia increases risk of QT-related ventricular arrhythmias during haloperidol therapy. |
| Hydrochlorothiazide | Synergy | Hydrochlorothiazide can lower serum potassium through renal potassium wasting. Potassium repletion can be clinically useful when levels are low, but... details → |
| Lactulose | Synergy | Lactulose can cause diarrhea when the dose is too high, and excessive laxative effect can lower potassium. A published elderly-patient case... |
| Magnesium Citrate | Synergy | Magnesium deficiency causes renal potassium wasting. Correcting magnesium is often necessary before potassium levels can normalize. details → |
| Magnesium Glycinate | Synergy | Magnesium deficiency causes renal potassium wasting. Correcting magnesium is often necessary before potassium levels can normalize. details → |
| Magnesium L-Threonate | Synergy | Magnesium deficiency causes renal potassium wasting. Correcting magnesium is often necessary before potassium levels can normalize. details → |
| Magnesium Malate | Synergy | Magnesium deficiency causes renal potassium wasting. Correcting magnesium is often necessary before potassium levels can normalize. details → |
| Magnesium Taurate | Synergy | Magnesium deficiency causes renal potassium wasting. Correcting magnesium is often necessary before potassium levels can normalize. details → |
| Methylprednisolone | Synergy | High-dose or pulse methylprednisolone can disturb potassium handling and has been associated with clinically relevant rhythm concerns in vulnerable... details → |
| Paliperidone | Synergy | Low potassium can increase arrhythmia risk when QT interval is prolonged. |
| Prednisolone | Synergy | Prednisolone can promote potassium loss or potassium shifts in susceptible patients, especially at higher systemic doses or when combined with other... details → |
| Prednisone | Synergy | Prednisone can promote potassium loss or potassium shifts in susceptible patients, especially at higher systemic doses, prolonged use, or when... details → |
| Prochlorperazine | Synergy | Hypokalemia can increase QT-related arrhythmia risk during prochlorperazine therapy. |
| Ranolazine | Synergy | Ranolazine usually causes modest QT prolongation, but torsades de pointes has been reported when risk factors stack. Low potassium is a major... details → |
| Salmeterol/Fluticasone | Synergy | Beta-2 agonists can lower serum potassium at high exposure, and correcting true hypokalemia reduces arrhythmia risk. |
| Sotalol | Synergy | Sotalol prolongs the QT interval; hypokalemia dramatically increases the risk of torsades de pointes. Maintaining normal serum potassium is... details → |
| Taurine | Synergy | Taurine helps stabilize cardiomyocyte membranes and supports intracellular potassium handling, complementing potassium intake for cardiac electrical... |
| Topiramate | Synergy | Topiramate can cause renal carbonic anhydrase inhibition, metabolic acidosis, low urinary citrate, and sometimes low potassium, which increases... details → |
| Torsemide | Synergy | Torsemide can lower potassium in some patients, and potassium replacement may be required when hypokalemia is documented. |
| Ziprasidone | Synergy | Hypokalemia increases QT-related arrhythmia risk during ziprasidone therapy. |
Go deeper
The full potassium profile.
Benefits, dosing by goal, forms, and the cited evidence for this supplement.
FAQ
Common potassium questions.
Quick answers drawn from the table above.
What interacts with Potassium?
In the NutriStack database, Potassium has 75 documented interactions with other supplements and medications. The most notable include Candesartan, Captopril, Enalapril, Eplerenone, and Losartan.
What should you not take with Potassium?
Potassium is flagged against 11 substances in the database, including Candesartan, Captopril, Enalapril, Eplerenone, Losartan, and Perindopril. Review these with a clinician before combining, especially alongside prescription medications.
What works well with Potassium?
Potassium pairs synergistically with Amiodarone, Bisacodyl, Chlorthalidone, Clonidine, and Dexamethasone in the NutriStack database. Synergy still depends on dose and timing; open any pair for the detail.
Can you take Potassium with Candesartan?
NutriStack classifies the Potassium and Candesartan pairing as conflict: Candesartan, an angiotensin II receptor blocker, raises serum potassium by reducing aldosterone-driven renal potassium excretion. Combining it with potassium... Avoid routine potassium supplements while taking candesartan unless specifically prescribed and monitored by a clinician. Have serum potassium and...
Check your whole stack
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