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  • Generic Name: (potassium chloride)
    Other Brands: N/A
  • Last Revised: 12/2014
    • What is this medication and its most common uses?

      K-Tab is a medicine used to treat and prevent low blood potassium levels. K-Tab is an extended-release medicine (a type of tablet that releases medicine into your body throughout the day).

    • What should I know when beginning and continuing on this medication?

      How does this medication work?

      K-Tab works by replacing potassium, helping to restore normal levels in your body.

      What are the beneficial effects of this medication and when should I begin to have results?

      What: K-Tab may help to restore normal blood potassium levels in your body.  

      When: Everyone responds differently to treatment, so try to be patient and follow your healthcare provider’s directions. It is important that you take K-Tab exactly as your healthcare provider has prescribed.

      How do I know it is working?

      Your healthcare provider may order tests regularly to check your blood potassium levels to see how well this medication is working.

    • What are the possible side effects of this medication?

      The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.

      More common side effects may include: nausea, vomiting, gas, abdominal (stomach area) pain, diarrhea.

      Less common side effects may include:

      K-Tab may cause high blood potassium levels (which may be life-threatening); or cause damage to your esophagus, stomach, or intestine.

    • Who should not take this medication?

      Do not take K-Tab if you are allergic to it or any of its ingredients.

      Do not take K-Tab if you have high blood potassium levels.

      Do not take K-Tab if you have certain heart and esophagus (the tube that connects your mouth and stomach) problems.

      Do not take K-Tab if you have a condition that slows down the activity of your stomach or intestines (such as diabetic gastroparesis or treatment with certain medicines such as oxybutynin).

    • What should I tell my healthcare provider before I take the first dose of this medication?

      Tell your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with K-Tab. Also, talk to your healthcare provider about your complete medical history, especially if you have heart or kidney problems, or if you have trouble swallowing tablets.

    • What is the usual dosage?

      The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.

      Prevention of Low Blood Potassium Levels

      Adults: The usual dose is 20 milliequivalents (mEq) a day.

      Treatment of Low Blood Potassium Levels

      Adults: The usual dose is 40 to 100 mEq a day in divided doses, as directed by your healthcare provider.

      Your healthcare provider may adjust your dose as needed, until the desired effect is achieved.

      If you are elderly or have kidney impairment, your healthcare provider may adjust your dose appropriately.

    • How should I take this medication?

      Take K-Tab exactly as prescribed by your healthcare provider. Do not change your dose or stop taking K-Tab without first talking to your healthcare provider.

      Swallow K-Tab tablets whole. Do not crush, chew, or suck on the tablets.

      Take K-Tab with meals and with a full glass of water or other liquid. Taking K-Tab on an empty stomach may cause stomach irritation.

      When you take K-Tab, you may see something in your stool that looks like a tablet. This is the empty shell from the tablet after the medicine has been absorbed in your body.

      If you experience black or bloody stools, contact your healthcare provider.

      Always follow your healthcare provider’s instructions regarding potassium intake through your diet. The usual dietary intake of potassium is 50 to 100 mEq a day.

    • What should I avoid while taking this medication?

      Do not take more than 20 mEq of K-Tab at once.

    • What are the possible food and drug interactions associated with this medication?

      If K-Tab is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your healthcare provider before combining K-Tab with the following: blood pressure/heart medications known as angiotensin-converting enzyme (ACE) inhibitors (such as lisinopril or enalapril) or water pills (such as amiloride, furosemide, or triamterene).

    • May I receive this medication if I am pregnant or breastfeeding?

      The effects of K-Tab during pregnancy and breastfeeding are unknown. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

    • What should I do if I miss a dose of this medication?

      If you miss a dose of K-Tab, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

    • How should I store this medication?

      Store at room temperature.

    • Who should I contact in case of emergency or overdose?
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      In the event of a medical emergency call your doctor or 9-1-1 immediately. In the event of overdose, call your doctor or poison control for further instructions.
      National Poison Control#: Call 1-800-222-1222

      This PDR+ drug information has been developed by the Physicians’ Desk Reference Network (PDRN), a source of medication information trusted by doctors for over 65 years.

      This monograph summarizes the most important information about your medication and does not cover all the information you may need. If you have any questions or concerns or want to learn more about your medication, ask your healthcare provider; he/she will be able to provide answers to your questions. This medication should only be used by the patient for whom it was prescribed and should not be shared with other people.
    • Additional patient resources.
      back to top Use your PDR® Pharmacy Discount Card when you or a family member fills a prescription and ask for your PDR® Discount every
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    This discount plan is NOT insurance or a Medicare prescription drug plan. The plan is not intended as a substitute for insurance and does not meet creditable coverage requirements under state or federal law. The plan provides discounts at participating pharmacies on certain pharmaceutical supplies, prescription drugs, or medical equipment and supplies. The range of discounts will vary depending on the products received. Members are obligated to pay the pharmacy the entire amount of the discounted rate for such products at the point of sale. The plan does not pay pharmacies for products provided to members. No enrollment or periodic fees apply. The pharmacy may pay the plan a fee from amounts the pharmacy collects from the member. The discount plan organization is ProCare Pharmacy Benefit Manager, Inc.,1267 Professional Parkway, ProCare Office Park, Gainesville, GA 30507, 1-888-299-5383. Customer service is provided by PDR, LLC., 5 Paragon Drive, Montvale, NJ, 07645, 1-800-232-7379, www.pdr.net/DiscountCard, customerservice@pdr.net.