k lock sachet - Polystyrene Sulfonate (15gm) medicine

K Lock Sachet: Complete Guide to Uses, Dosage, and Safety

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🏭 Ipca Laboratories Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 25, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for hyperkalemia.
Reviewed by
SaathiMed Expert Panel | Sep 25, 2026
🩺
Medically Fact-Checked & Clinically Verified by SaathiMed Clinical Review Board
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026

When to Call Your Doctor IMMEDIATELY

  • Severe abdominal pain or bloating
  • Inability to pass stool for several days
  • Blood in stool or vomit
  • Irregular heartbeat or palpitations
  • Muscle weakness or cramps
  • Signs of allergic reaction such as rash, itching, or swelling
  • Decreased urine output

If experiencing severe symptoms, call emergency services immediately.

What is k lock sachet used for?

This medicine is a potassium binder used to treat high potassium levels in the blood. It works by exchanging sodium for potassium in the large intestine, helping the body excrete excess potassium through stool.

  • Generic Name: Polystyrene Sulfonate (15gm)
  • Manufacturer: Ipca Laboratories Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 k lock sachet के बारे में (Hindi Summary)

उपयोग: यह दवा पोटैशियम सल्फोनेट (15 ग्राम) सैशे के रूप में उपलब्ध है और खून में पोटैशियम की मात्रा अधिक होने (हाइपरकलेमिया) के इलाज के लिए इस्तेमाल की जाती है। यह आंतों में सोडियम के बदले पोटैशियम को बांधकर उसे मल के माध्यम से शरीर से बाहर निकालने में मदद करती है। यह आमतौर पर गुर्दे की बीमारी, हृदय विफलता या उन दवाओं के कारण होने वाले हाइपरकलेमिया के लिए दी जाती है जो पोटैशियम बढ़ाती हैं।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में कब्ज, जी मिचलाना, उल्टी और दस्त शामिल हैं। गंभीर दुष्प्रभावों में आंतों में रुकावट, फेकल इम्पैक्शन और इलेक्ट्रोलाइट असंतुलन हो सकते हैं। अगर आपको गंभीर पेट दर्द, लगातार कब्ज या मल में खून दिखे तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को लेने से पहले अपने डॉक्टर को अपनी सभी स्वास्थ्य समस्याओं और दवाओं के बारे में बताएं। यह दवा सोडियम युक्त है, इसलिए हृदय विफलता या उच्च रक्तचाप वाले रोगियों को सावधानी बरतनी चाहिए। अन्य मौखिक दवाओं के साथ इस दवा को लेने से कम से कम 2 घंटे का अंतराल रखें। कब्ज से बचने के लिए पर्याप्त पानी पिएं। नियमित रूप से पोटैशियम और गुर्दे की कार्यप्रणाली की जांच कराएं।

💡 Did You Know? The Indian pharmaceutical market is expected to reach $130 billion by 2030.

💊 k lock sachet Uses & Benefits

[{"condition":"Hyperkalemia","description":"This medicine is used to treat high potassium levels in the blood by binding potassium in the intestines and promoting its excretion.","evidence":"Well-established"},{"condition":"Chronic kidney disease","description":"Often prescribed to manage hyperkalemia in patients with chronic kidney disease who are unable to excrete potassium effectively.","evidence":"Well-established"},{"condition":"Heart failure","description":"May be used to manage hyperkalemia in heart failure patients, especially those on potassium-sparing diuretics or ACE inhibitors.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Hyperkalemia in dialysis patients","description":"Sometimes used in dialysis patients to control potassium levels between sessions, though dialysis is the primary treatment.","evidence":"Limited"}]

Primary treatment for: Hyperkalemia

Also treats: Chronic kidney disease, Heart failure

📋 Drug Information

Generic Name(s)Polystyrene Sulfonate (15gm)
Brand Namek lock sachet
ManufacturerIpca Laboratories Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassOTHERS
Action ClassIon exchange resins (Potassium Binders)
Route of AdministrationOral
StorageStore at room temperature (15-30°C) in a dry place. Keep away from direct sunlight and moisture.
Shelf Life24 months from the date of manufacture.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Always mix this medicine with water or syrup as directed and drink immediately.
2
Separate this medicine from other oral medications by at least 2 hours to avoid absorption issues.
3
Monitor potassium levels regularly to avoid hypokalemia.
4
Encourage adequate fluid intake to prevent constipation.
5
Avoid concomitant use with magnesium or aluminum-containing laxatives or antacids.
6
In elderly patients, monitor for constipation and electrolyte imbalances closely.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
High potassium levels
This medicine is commonly prescribed for this.
Likely Use
✅
Muscle weakness
May be due to hyperkalemia; this medicine can help.
Likely Use
❌
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is not absorbed from the gastrointestinal tract. It acts locally in the colon.
DistributionSince this medicine is not absorbed, it does not distribute into body tissues. It remains in the gastrointestinal tract until excretion.
Protein BindingNot established from the available information.
MetabolismThis medicine is not metabolized. It is excreted unchanged in the feces.
Half-LifeNot established from the available information.
ExcretionThis medicine is excreted entirely in the feces as the potassium-bound resin complex.
BioavailabilityNot applicable as this medicine is not absorbed.
Onset of ActionThe onset of action is typically within 2 to 6 hours after oral administration, but the full effect may take 24 to 48 hours.
Peak Plasma TimeNot applicable as this medicine is not absorbed into the bloodstream.
Duration of ActionThe duration of action depends on the dose and individual bowel transit time. Typically, effects last until the resin is excreted, which can be 6 to 24 hours.

How It Works

This medicine works by exchanging sodium ions for potassium ions in the large intestine. Polystyrene sulfonate is a non-absorbed polymer that binds potassium in the colon, forming a complex that is excreted in the feces. This reduces the absorption of potassium into the bloodstream and helps lower serum potassium levels. The onset of action is typically within 2 to 6 hours after oral administration, but it may take longer to see a significant reduction in potassium levels.

Mechanism Steps

1
Ingestion and transit: This medicine is taken orally and passes through the stomach unchanged, reaching the large intestine.
2
Ion exchange in the colon: In the colon, polystyrene sulfonate exchanges its sodium ions for potassium ions present in the intestinal contents.
3
Potassium binding: The potassium ions bind to the polystyrene sulfonate resin, forming a stable complex.
4
Excretion: The potassium-bound resin is excreted in the feces, effectively removing potassium from the body.

💡 How to Take k lock sachet

Strength: Sachet containing 15 gm of polystyrene sulfonate.

1Empty the contents of one sachet into a glass of water (about 100-200 ml) or as directed by your doctor.
2Stir well and drink immediately.
3Do not take this medicine with other oral medications at the same time. Wait at least 2 hours.
4Take with food to reduce stomach upset.
5Drink plenty of fluids throughout the day to prevent constipation.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 15 gm (one sachet) mixed with water or syrup, taken one to four times daily, depending on the severity of hyperkalemia and the patient's response. The dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. Do not exceed the prescribed dose.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients may be more susceptible to constipation and electrolyte imbalances. Dose should be individualized by a clinician, and regular monitoring is recommended.
Renal ImpairmentNo specific dose adjustment is provided in the available information. Use with caution and monitor renal function and potassium levels closely.
Hepatic ImpairmentNo specific dose adjustment is provided in the available information. Use with caution in patients with hepatic impairment.
Maximum Daily DoseThe maximum daily dose is not established from the available information. Follow your doctor's prescription.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

With food
Take with meals
Reduces stomach upset.
High-fiber foods
Encourage
Helps prevent constipation.

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than half the dosing interval has passed
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of k lock sachet

✅ Common Side Effects

Constipation (Common (5-10%))
Increase fluid and fiber intake. Consult doctor if persistent.
Nausea (Common (5-10%))
Take with food or as directed. Usually resolves on its own.
Vomiting (Uncommon (1-5%))
Stay hydrated. Consult doctor if severe or persistent.
Diarrhea (Uncommon (1-5%))
Monitor for dehydration. Consult doctor if severe.

🚨 Serious Side Effects

Intestinal obstruction (Rare (<0.1%))
Seek immediate medical attention if you experience severe abdominal pain, bloating, or inability to pass stool.
Fecal impaction (Rare (<0.1%))
Consult doctor if you have not had a bowel movement for several days or have severe constipation.
Electrolyte imbalances (Rare (<0.1%))
Regular blood tests are needed. Report symptoms like muscle cramps, weakness, or irregular heartbeat.

⚠️ Rare Side Effects

Allergic reactions
Seek immediate medical help if you experience rash, itching, swelling, or difficulty breathing.
Gastrointestinal perforation
Call emergency services if you have sudden severe abdominal pain, fever, or blood in stool.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Moderate
Levothyroxine Moderate
Lithium Moderate
Digoxin Moderate
ACE inhibitors Moderate
Potassium supplements Major
Magnesium hydroxide Major
Aluminum hydroxide Major
Sorbitol Major
Calcium supplements Minor

🚨 Major Interactions

  • Other oral medications
  • Magnesium-containing laxatives
  • Aluminum-containing antacids

⚡ Moderate Interactions

  • Digoxin
  • ACE inhibitors
  • Potassium-sparing diuretics

🍷 Alcohol Interaction

Alcohol may worsen dehydration and electrolyte imbalances. It is advisable to avoid or limit alcohol while taking this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypokalemia (low potassium levels)","Bowel obstruction","Paralytic ileus","History of severe constipation","Neonates (due to risk of intestinal necrosis)"]

⚠️ Warnings & Precautions

["Use with caution in patients with heart failure or edema due to sodium content.","Avoid in patients with a history of bowel obstruction or severe constipation.","Do not use as emergency treatment for severe hyperkalemia.","Separate administration from other oral medications by at least 2 hours.","Monitor electrolyte levels regularly.","Use with caution in elderly patients due to increased risk of constipation."]

🤱 Lactation Safety

Not established from the available information. Consult your doctor before using this medicine while breastfeeding.

💊 Overdose Management

Overdose may lead to severe hypokalemia, electrolyte imbalances, and intestinal obstruction. Seek immediate medical attention. Treatment is supportive and may include discontinuation of the medicine, electrolyte replacement, and management of bowel obstruction if present.

⏰ Missed Dose

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose to catch up.

Additional Safety Advice

General Safety

Before taking this medicine, inform your doctor if you have a history of bowel obstruction, constipation, or heart failure. This medicine contains sodium, so it should be used with caution in patients on a low-sodium diet or with conditions like hypertension or edema. Do not take this medicine with other oral medications within 2 hours, as it may affect their absorption. Drink plenty of fluids to prevent constipation. Avoid taking antacids or laxatives containing magnesium or aluminum without consulting your doctor. Regular monitoring of blood potassium levels and kidney function is essential during treatment. Do not use this medicine for emergency treatment of severe hyperkalemia; seek immediate medical attention if you experience symptoms like muscle weakness, irregular heartbeat, or difficulty breathing.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are at higher risk of constipation and electrolyte imbalances. Close monitoring and dose adjustment may be necessary.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before using this medicine. The safety of this medicine during pregnancy is not well established.

🏥 Post-Surgery Considerations

After surgery, use this medicine with caution as it may affect electrolyte balance. Monitor potassium levels closely.

🦷 Dental Procedures

Inform your dentist about this medicine before any dental procedure. No specific precautions are known, but maintain good hydration.

💚 Lifestyle Tips for Better Results

🏃
Maintain a low-potassium diet as advised by your doctor.
🥗
Stay well hydrated to prevent constipation.
😴
Include fiber-rich foods in your diet.
💧
Regularly monitor your potassium levels.
🧘
Follow up with your healthcare provider regularly.

🏋️ Exercise Considerations

No specific exercise restrictions are known, but if you experience muscle weakness or cramps, consult your doctor before exercising.

🥗 Diet Recommendations

Limit high-potassium foods like bananas, oranges, and potatoes.
Increase fiber intake to prevent constipation.
Stay well hydrated.

💼 Impact on Daily Work & Life

This medicine is generally safe for driving and operating machinery, but if you experience dizziness or weakness, avoid these activities until you feel better.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. Stopping abruptly may cause potassium levels to rise again. Your doctor will determine when it is safe to stop based on your potassium levels and overall condition.

📅 Long-Term Use Effects

Long-term use of this medicine may lead to electrolyte imbalances and constipation. Regular monitoring of potassium, sodium, and renal function is required. It should be used under medical supervision, and the dose may need adjustment based on response.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Dietary potassium restriction

Limiting high-potassium foods can help manage mild hyperkalemia.

Evidence: Well-established
Other potassium binders

Medications like patiromer or sodium zirconium cyclosilicate may be alternatives.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific vaccine interactions are known. However, consult your doctor before receiving any vaccine while on this medicine.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate unless specified

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

Carry this medicine in its original packaging with a copy of your prescription. Store at room temperature and protect from moisture. If traveling across time zones, adjust dosing schedule as advised by your doctor. Check customs regulations for carrying prescription medicines.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 60-year-old man with chronic kidney disease and high potassium levels
He was prescribed this medicine to manage his potassium levels. He took it as directed with water and separated it from his other medications. Within a few days, his potassium levels improved, and he felt less weak. He also increased his fluid intake to prevent constipation.
💡 Lesson: Taking this medicine correctly and staying hydrated can effectively manage hyperkalemia and reduce symptoms.
👤 A 45-year-old woman with heart failure on potassium-sparing diuretics
She developed hyperkalemia and was started on this medicine. She experienced mild constipation, which was managed by increasing dietary fiber and fluids. Her potassium levels normalized, and she continued the medicine under supervision.
💡 Lesson: Side effects like constipation can be managed with lifestyle changes, and regular monitoring is key to safe use.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine typically starts working within 2 to 6 hours, but it may take 24 to 48 hours to see a significant reduction in potassium levels.

Q: Can I take this medicine with other medications?

A: You should separate this medicine from other oral medications by at least 2 hours to avoid absorption issues. Always consult your doctor.

Q: What are the common side effects?

A: Common side effects include constipation, nausea, vomiting, and diarrhea. These are usually mild and temporary.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my kidney function?
  • Can I drive after taking this medicine?
  • Does it interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?

🔄 Substitutes for k lock sachet

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: This medicine can be used for emergency treatment of high potassium.
    Fact: This medicine is not for emergency use. Severe hyperkalemia requires immediate medical attention.
  • Myth: This medicine is safe for everyone.
    Fact: It is contraindicated in certain conditions like bowel obstruction and should be used with caution in others.

🔄 Alternative Options

Generic Alternatives

  • Polystyrene sulfonate sachet

Brand Alternatives

  • K Lock Sachet

📊 Comparison with Similar Medicines

[{"medicine":"This medicine","class":"Potassium binder","route":"Oral","onset":"2-6 hours","notes":"Contains sodium; may cause constipation."},{"medicine":"Patirormer","class":"Potassium binder","route":"Oral","onset":"7 hours","notes":"Non-absorbed polymer; no sodium content."},{"medicine":"Sodium zirconium cyclosilicate","class":"Potassium binder","route":"Oral","onset":"1 hour","notes":"Fast onset; no sodium content."}]

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