Potassium Chloride Extended-Release Capsules
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Potassium Chloride Extended-Release Capsules
What is this medicine?
POTASSIUM CHLORIDE (poe TASS i um KLOOR ide) is a potassium supplement used to prevent and to treat low potassium. Potassium is important for the heart, muscles, and nerves. Too much or too little potassium in the body can cause serious problems.
How should I use this medicine?
Take this drug by mouth with a glass of water. Take it as directed on the prescription label at the same time every day. Take it with food. Do not cut, crush, chew, or suck this drug. Swallow the capsules whole. You may open the capsule and put the contents in a teaspoon of soft food, such as applesauce or pudding. Do not add to hot foods. Swallow the mixture right away. Do not chew the mixture. Drink a glass of water or juice after taking the mixture. Keep taking this medicine unless your health care provider tells you to stop.
Talk to your health care provider about the use of this drug in children. Special care may be needed.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
black, tarry stools
breathing problems
confusion
heartburn
fast, irregular heartbeat
feeling faint or lightheaded, falls
low blood pressure
numbness or tingling in hands or feet
pain when swallowing
unusually weak or tired
weakness, heaviness of legs
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
diarrhea
nausea, vomiting
stomach pain
What may interact with this medicine?
Do not take this medicine with any of the following medications:
certain diuretics such as spironolactone, triamterene
certain medicines for stomach problems like atropine; difenoxin and glycopyrrolate
eplerenone
sodium polystyrene sulfonate
This medicine may also interact with the following medications:
certain medicines for blood pressure or heart disease like lisinopril, losartan, quinapril, valsartan
medicines that lower your chance of fighting infection such as cyclosporine, tacrolimus
NSAIDs, medicines for pain and inflammation, like ibuprofen or naproxen
other potassium supplements
salt substitutes
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Where should I keep my medicine?
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F ). Keep bottle closed tightly to protect this medicine from light and moisture. Throw away any unused medicine after the expiration date.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
Addison disease
dehydration
diabetes, high blood sugar
difficulty swallowing
heart disease
high levels of potassium in the blood
irregular heartbeat or rhythm
kidney disease
large areas of burned skin
stomach ulcers, other stomach or intestine problems
an unusual or allergic reaction to potassium, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
breast-feeding
What should I watch for while using this medicine?
Visit your doctor or health care professional for regular check ups. You will need lab work done regularly.
You may need to be on a special diet while taking this medicine. Ask your doctor.
Updated:  
October 18, 2020