K Lock Sachet

Polystyrene Sulfonate (15gm)

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K Lock Sachet is a medicine used for the treatment of high blood potassium levels in patients with chronic kidney disease who are undergoing dialysis. It helps removes the extra potassium from the body and brings the potassium level back to normal.

Written By Dr. Syeda Aafia, MBA, BDS,
Reviewed By Dr. Sachin Gupta, MD Pharmacology, MBBS,
Last updated on 25 Nov 2025 | 03:05 PM (IST)

₹64.8 MRP ₹70.318% off

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General Information

Contains

Polystyrene Sulfonate (15gm)

Marketer

Ipca Laboratories Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

K Lock Sachet may be taken with or without food. Take it regularly at a fixed time each day to get the maximum benefit of the medicine. Avoid consumption of grapefruit juice while you are taking this medicine.

Using of K Lock Sachet may cause side effects such as vomiting, nausea, loss of appetite, and constipation. If the side effects persist or worsen, inform your doctor. You may also need to have regular blood tests to monitor the levels of potassium and other electrolytes, such as calcium, in your blood while taking this medicine.

Uses of K Lock Sachet

Increased potassium levels in blood

Benefits of K Lock Sachet

Increased potassium levels in blood
Increased potassium levels in the blood (hyperkalemia) can be dangerous, as excess potassium affects heart rhythm and may lead to life-threatening complications. K Lock Sachet works by binding to potassium in the intestines, allowing it to be removed from the body through the stools. This helps bring potassium levels back to normal, supporting heart health and preventing serious complications.

How to use K Lock Sachet

Take this medicine in the dose and duration as advised by your doctor. Check the label for directions before use. Empty the granules in a glass of water/milk, stir it and consume immediately. K Lock Sachet may be taken with or without food.

How K Lock Sachet works

K Lock Sachet binds with excess potassium which is excreted in the feces, decreasing the potassium levels in the blood.

Quick tips

K Lock Sachet is used to lower high blood potassium level due to severe kidney diseases.
Dissolve or mix this medication with water before taking.
Stop taking this medication and inform your doctor if you get constipation after taking it.
Do not consume any food or drink that contains sorbitol while you are using this medication.
You may need to have regular blood tests to monitor the levels of potassium and other electrolytes, such as calcium, in your blood.
Inform your doctor if you are pregnant, planning to conceive, or breastfeeding.
K Lock Sachet is used to lower high blood potassium level due to severe kidney diseases.
Dissolve or mix this medication with water before taking.
Stop taking this medication and inform your doctor if you get constipation after taking it.
Do not consume any food or drink that contains sorbitol while you are using this medication.
You may need to have regular blood tests to monitor the levels of potassium and other electrolytes, such as calcium, in your blood.
Inform your doctor if you are pregnant, planning to conceive, or breastfeeding.

Safety advice

Alcohol

CONSULT YOUR DOCTOR

It is not known whether it is safe to consume alcohol with K Lock Sachet. Please consult your doctor.

Pregnancy

CONSULT YOUR DOCTOR

The safety of K Lock Sachet during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.

Breast feeding

CONSULT YOUR DOCTOR

Information regarding the use of K Lock Sachet during breastfeeding is not available. Please consult your doctor.

Driving

SAFE

K Lock Sachet does not usually affect your ability to drive.

Kidney

SAFE IF PRESCRIBED

K Lock Sachet is probably safe to use in patients with kidney disease. Limited data suggest dose adjustment may not be needed.

Liver

SAFE IF PRESCRIBED

K Lock Sachet is probably safe to use in patients with liver disease. Limited data suggest dose adjustment may not be needed.

Interaction with drugs

Taking K Lock with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Life-threatening

Sorbitol (Injection Route)

Do not consume Sorbitol with Polystyrene Sulfonate. If concurrent use is essential, please consult your doctor.

Moderate

Thyroxine (Oral Route)

If concurrent use is essential, ensure a gap of at least 10 hours between taking Thyroxine and Polystyrene Sulfonate. Your doctor may monitor your thyroid functioning closely along with your overall treatment and adjust the doses as per the observations. Thyroxine may increase the rate of release of Polystyrene Sulfonate in the blood.

Moderate

Sodium Bicarbonate (Oral Route)

Do not consume Sodium Bicarbonate with Polystyrene Sulfonate. If concurrent use is essential, please consult your doctor. They may monitor the electrolyte levels frequently.

Moderate

Sodium Bicarbonate (Injection Route)

Do not consume Sodium Bicarbonate with Polystyrene Sulfonate. If concurrent use is essential, please consult your doctor. They may monitor the electrolyte levels frequently.

Moderate

Milk of Magnesia (Oral Route)

Do not consume Milk of Magnesia with Polystyrene Sulfonate. If concurrent use is essential, please consult your doctor. They may monitor the electrolyte levels frequently.

Frequently asked questions

What is K Lock Sachet?

K Lock Sachet is used for treatment of hyperkalemia (high levels of blood potassium). Patient should follow the advice of doctor regarding its use

Does sodium K Lock Sachet work?

Sodium K Lock Sachet works at the prescribed dose and duration for treatment of hyperkalemia as advised by your doctor.

Fact Box

Chemical Class

Sulfonated polystyrene

Habit Forming

Therapeutic Class

BLOOD RELATED

Action Class

Potassium Binders

Related lab tests

Potassium

Sodium

Urine Potassium

References

Polystyrene Sulfonate. Bridgewater, New Jersey: Sanofi-Aventis U.S. LLC; 2009. [Accessed 06 Apr. 2019] (online) Available form:

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Ipca Laboratories Ltd
Address: 142 AB, Kandivli Industrial Estate, Kandivli (West), Mumbai - 400 067, Maharashtra

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

K Lock Sachet

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General Information

Contains

Marketer

Storage

Product introduction

Uses of K Lock Sachet

Benefits of K Lock Sachet

How to use K Lock Sachet

How K Lock Sachet works

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Sorbitol (Injection Route)

Thyroxine (Oral Route)

Sodium Bicarbonate (Oral Route)

Sodium Bicarbonate (Injection Route)

Milk of Magnesia (Oral Route)

Frequently asked questions

What is K Lock Sachet?

Does sodium K Lock Sachet work?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Potassium

Sodium

Urine Potassium

References

User feedback

What are you using K Lock Sachet for?

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

Related/Popular tests