Thelmex 250mg Tablet - Pyrantel Pamoate (250mg) medicine

Nemocid Oral Suspension: Complete Guide to Uses, Dosage, and Safety

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🏭 BPL 📦 strip of 3 tablets 💊 Allopathy 📅 Updated: Oct 21, 2026
⚠️ Hepatotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for pinworm, roundworm, and hookworm infections.
Reviewed by
SaathiMed Expert Panel | Oct 21, 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

  • Blood in stool or vomit
  • Severe abdominal pain
  • Chest pain or difficulty breathing
  • Severe headache with visual changes
  • Sudden swelling of face, lips, or throat
  • Yellowing of skin or eyes
  • Decreased urine output
  • Severe allergic reaction with rash and itching

If experiencing severe symptoms, call emergency services immediately.

What is Thelmex 250mg Tablet used for?

This medicine is an oral suspension containing pyrantel pamoate 250 mg per 5 mL. It is used to treat intestinal worm infections such as pinworms, roundworms, and hookworms. It works by paralyzing the worms, which are then expelled in the stool. It is usually taken as a single dose, but may be repeated after 2 weeks for pinworm infections.

  • Generic Name: Pyrantel Pamoate (250mg)
  • Manufacturer: BPL
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 Thelmex 250mg Tablet के बारे में (Hindi Summary)

उपयोग: यह दवा पाइरेंटल पामोएट 250 मिलीग्राम प्रति 5 मिलीलीटर युक्त एक ओरल सस्पेंशन है, जिसका उपयोग आंतों के कीड़ों के संक्रमण जैसे पिनवर्म, राउंडवर्म और हुकवर्म के इलाज के लिए किया जाता है। यह कीड़ों को पक्षाघात करके मारती है, जिससे वे मल के साथ बाहर निकल जाते हैं। यह दवा आमतौर पर एक ही खुराक में ली जाती है, लेकिन पिनवर्म के लिए 2 सप्ताह बाद दोबारा लेनी पड़ सकती है। यह दवा 2 वर्ष से अधिक उम्र के बच्चों और वयस्कों के लिए सुरक्षित है, लेकिन 2 वर्ष से छोटे बच्चों में डॉक्टर की सलाह के बिना न दें।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में मतली, उल्टी, पेट दर्द, दस्त, सिरदर्द, चक्कर आना और नींद आना शामिल हैं। ये आमतौर पर हल्के और अस्थायी होते हैं। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन एलर्जी की प्रतिक्रिया, जैसे त्वचा पर चकत्ते, खुजली, चेहरे, होंठ या गले में सूजन, सांस लेने में कठिनाई हो सकती है। ऐसा होने पर तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। खुराक से अधिक या कम न लें। उपयोग से पहले बोतल को अच्छी तरह हिलाएं। इसे भोजन के साथ या बिना भोजन के लिया जा सकता है, लेकिन भोजन के साथ लेने से पेट की परेशानी कम हो सकती है। शौचालय का उपयोग करने के बाद और खाने से पहले हाथ धोएं। संक्रमण को फैलने से रोकने के लिए परिवार के सभी सदस्यों का एक साथ इलाज करें। इस दवा को लेते समय शराब न पिएं। यदि आपको चक्कर या नींद आती है तो वाहन न चलाएं।

💡 Did You Know? Over 80% of the antiretroviral drugs used globally to combat AIDS are supplied by Indian pharmaceutical companies.

💊 Thelmex 250mg Tablet Uses & Benefits

[{"condition":"Pinworm infection (Enterobiasis)","description":"This medicine is highly effective in eradicating pinworms from the intestines, relieving itching around the anus and preventing spread.","evidence":"Well-established"},{"condition":"Roundworm infection (Ascariasis)","description":"It paralyzes and expels roundworms, helping to resolve symptoms like abdominal pain and cough.","evidence":"Well-established"},{"condition":"Hookworm infection","description":"This medicine treats hookworm infections, which can cause anemia and fatigue.","evidence":"Well-established"},{"condition":"Trichostrongyliasis","description":"It is used to treat infections caused by Trichostrongylus species, though less common.","evidence":"Limited"}]

Off-label uses: [{"condition":"Cutaneous larva migrans","description":"Sometimes used off-label for creeping eruption caused by hookworm larvae, but evidence is limited.","evidence":"Limited"}]

Primary treatment for: Intestinal worm infections (pinworm, roundworm, hookworm)

Also treats: Trichostrongyliasis

📋 Drug Information

Generic Name(s)Pyrantel Pamoate (250mg)
Brand NameThelmex 250mg Tablet
ManufacturerBPL
Packaging / Formstrip of 3 tablets (Allopathy)
Therapeutic Class
Action Class
Route of AdministrationOral
StorageStore at room temperature (15-30°C) in a dry place, away from direct sunlight. Keep the bottle tightly closed. Do not freeze.
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
Take this medicine with food to reduce stomach upset.
2
Shake the bottle well before each use to ensure proper mixing.
3
Treat all family members living in the same household at the same time to prevent reinfection.
4
Wash hands frequently and keep fingernails short to avoid reinfection.
5
Change bed linens and underwear daily during treatment.
6
Avoid alcohol while taking this medicine as it may increase drowsiness.
7
Do not drive or operate heavy machinery if you feel dizzy or drowsy.
8
Complete the full course as prescribed, even if symptoms improve.
9
For pinworm infection, a second dose after 2 weeks is often needed.
10
Consult your doctor if symptoms persist after treatment.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Itching around the anus
This medicine is commonly prescribed for pinworm infection.
Likely Use
✅
Visible worms in stool
This medicine treats various intestinal worms.
Likely Use
✅
Abdominal pain
May be due to worm infection; 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 poorly absorbed from the gastrointestinal tract. Only a small fraction of the oral dose reaches systemic circulation.
DistributionDue to poor absorption, systemic distribution is minimal. The medicine remains largely in the gut lumen where it acts on the worms.
Protein BindingNot established from the available information.
MetabolismAny absorbed portion is partially metabolized in the liver.
Half-LifeNot established from the available information.
ExcretionMost of the medicine is excreted unchanged in the feces. A small amount of absorbed drug is excreted in urine.
BioavailabilityLow and variable due to poor absorption.
Onset of ActionThe paralytic effect on worms begins within hours after ingestion.
Peak Plasma TimeNot established from the available information.
Duration of ActionThe effect lasts until the worms are expelled, typically within 24-48 hours.

How It Works

This medicine works by causing spastic paralysis of the worms through depolarizing neuromuscular blockade. This paralysis leads to the expulsion of the worms from the gastrointestinal tract by normal peristalsis. It is poorly absorbed from the gut, so its action is primarily local.

Mechanism Steps

1
Binding to worm's nicotinic receptors: This medicine binds to nicotinic acetylcholine receptors on the muscle cells of susceptible worms.
2
Depolarizing neuromuscular blockade: This binding causes persistent depolarization, leading to spastic paralysis of the worm.
3
Expulsion of worms: The paralyzed worms detach from the intestinal wall and are expelled through normal bowel movements.

💡 How to Take Thelmex 250mg Tablet

Strength: Oral suspension: 250 mg per 5 mL.

1Shake the bottle well before each use.
2Measure the dose accurately using the provided measuring cup or syringe.
3Take the medicine orally, with or without food.
4If taking with food, it may reduce stomach upset.
5Wash hands thoroughly after taking the medicine.
6Follow your doctor's instructions for the duration of treatment.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 10 mg/kg as a single dose for pinworm, roundworm, and hookworm infections. For pinworm, a repeat dose after 2 weeks is often recommended. For roundworm and hookworm, a single dose is usually sufficient. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosageFor children 2 years and older, the dose is 10 mg/kg as a single dose. For pinworm, a repeat dose after 2 weeks is recommended. Do not use in children under 2 years without medical advice. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Elderly DosageNo specific dose adjustment is required for elderly patients, but use with caution and follow your doctor's advice.
Renal ImpairmentNo dose adjustment is typically needed for renal impairment, as the medicine is poorly absorbed. However, consult your doctor.
Hepatic ImpairmentUse with caution in patients with liver disease. Dose adjustment may be necessary. Consult your doctor.
Maximum Daily DoseThe maximum recommended dose is 10 mg/kg as a single dose. Do not exceed the prescribed dose.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
Take with meals
Reduces stomach upset.
Grapefruit
No known interaction
No significant interaction reported.

⏰ 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 Thelmex 250mg Tablet

✅ Common Side Effects

Nausea (Common (1-10%))
Take with food to reduce nausea. If it persists, consult your doctor.
Vomiting (Common (1-10%))
Stay hydrated. If vomiting is severe or persistent, contact your doctor.
Stomach pain (Common (1-10%))
Usually resolves on its own. If severe, seek medical advice.
Diarrhea (Common (1-10%))
Drink plenty of fluids. If diarrhea is severe or bloody, seek medical attention.
Headache (Common (1-10%))
Rest and stay hydrated. Consult doctor if it persists.
Dizziness (Common (1-10%))
Avoid driving or operating machinery until you feel normal.
Drowsiness (Common (1-10%))
Avoid alcohol and activities requiring alertness.

🚨 Serious Side Effects

Severe allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek immediate medical help if you experience rash, itching, swelling, difficulty breathing, or dizziness.
Liver toxicity (Rare (<0.1%))
Report yellowing of skin or eyes, dark urine, or severe fatigue to your doctor immediately.
Severe skin reactions (e.g., Stevens-Johnson syndrome) (Very rare (<0.01%))
Stop the medicine and seek emergency care if you develop a painful rash with blisters or peeling skin.

⚠️ Rare Side Effects

Elevated liver enzymes
Your doctor may monitor liver function if you take this medicine for a long time.
Insomnia
Practice good sleep hygiene. Consult doctor if it persists.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Piperazine Major
Theophylline Moderate

🚨 Major Interactions

  • Piperazine

⚡ Moderate Interactions

  • Theophylline

🍷 Alcohol Interaction

Alcohol may increase drowsiness and dizziness caused by this medicine. It is best to avoid alcohol while taking this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known allergy to pyrantel pamoate or any component of the suspension","Liver disease","Children under 2 years of age (unless prescribed by a doctor)"]

⚠️ Warnings & Precautions

["Do not use in children under 2 years without medical advice.","Use with caution in patients with liver impairment.","Avoid alcohol while taking this medicine.","Do not drive or operate machinery if you feel dizzy or drowsy.","Treat all family members simultaneously to prevent reinfection.","Wash hands frequently and keep nails short to avoid reinfection.","Change bed linens and underwear daily during treatment."]

🤱 Lactation Safety

It is not known whether this medicine passes into breast milk. Consult your doctor before using while breastfeeding.

💊 Overdose Management

Overdose may cause nausea, vomiting, diarrhea, and liver toxicity. Seek immediate medical attention. Treatment is supportive and symptomatic. There is no specific antidote.

⏰ 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.

Additional Safety Advice

General Safety

Take this medicine exactly as prescribed by your doctor. Do not take more or less than the recommended dose. Shake the bottle well before each use to ensure the medicine is evenly mixed. This medicine can be taken with or without food, but taking it with food may reduce stomach upset. Wash your hands thoroughly after using the bathroom and before eating to prevent reinfection. Change your underwear and bed linens daily during treatment to avoid spreading pinworm eggs. Treat all family members living in the same household at the same time to prevent reinfection. Avoid alcohol while taking this medicine as it may increase drowsiness. Do not drive or operate heavy machinery if you feel dizzy or drowsy after taking this medicine. Keep this medicine out of reach of children. Store at room temperature away from direct sunlight. Do not use after the expiry date.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more susceptible to side effects such as dizziness and drowsiness. Use with caution and follow your doctor's advice.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, consult your doctor before taking this medicine. It should only be used if clearly needed and prescribed by a doctor.

🏥 Post-Surgery Considerations

There are no specific restrictions after surgery, but inform your surgeon and anesthesiologist about this medicine. It is generally safe to continue unless advised otherwise.

🦷 Dental Procedures

No specific precautions are needed for dental procedures. However, inform your dentist about this medicine.

💚 Lifestyle Tips for Better Results

🏃
Maintain good personal hygiene, especially handwashing.
🥗
Keep fingernails short and clean to prevent egg accumulation.
😴
Change underwear and bed linens daily during treatment.
💧
Avoid scratching the anal area to prevent egg transfer.
🧘
Wash fruits and vegetables thoroughly before eating.
🌞
Drink safe, clean water.

🏋️ Exercise Considerations

This medicine may cause dizziness or drowsiness. Avoid strenuous exercise or activities requiring alertness until you know how it affects you.

🥗 Diet Recommendations

Eat a balanced diet to support recovery.
Include fiber-rich foods to prevent constipation.
Stay well hydrated.
Avoid alcohol during treatment.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or drowsiness, which can affect your ability to drive or operate machinery. It is advisable to avoid these activities until you know how the medicine affects you. Otherwise, it should not significantly impact your daily work life.

🛑 When to Stop This Medicine

Stop taking this medicine after completing the prescribed course or as directed by your doctor. Do not stop prematurely unless advised. If you experience severe side effects, stop and seek medical advice immediately.

📅 Long-Term Use Effects

Long-term use of this medicine is not recommended unless prescribed by a doctor. Prolonged use may increase the risk of liver toxicity. Regular monitoring of liver function may be advised if extended treatment is necessary. Always consult your doctor before taking this medicine for an extended period.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Albendazole

Another anthelmintic that can treat similar worm infections.

Evidence: Well-established
Mebendazole

Alternative anthelmintic for pinworm, roundworm, and hookworm.

Evidence: Well-established
Good hygiene practices

Essential to prevent reinfection and complement medical treatment.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

There are no known interactions between this medicine and vaccines. 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

When traveling with this medicine, carry it in its original packaging with the prescription label intact. Bring a copy of your prescription to show customs if needed. Store it at room temperature and protect it from direct sunlight. If crossing time zones, continue taking it as prescribed; for single-dose treatment, timing is not critical. Always pack it in your carry-on luggage to avoid loss or temperature extremes.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 6-year-old child with itching around the anus and visible worms in stool.
The child was diagnosed with pinworm infection. The doctor prescribed this medicine as a single dose, with a repeat dose after 2 weeks. The parents also treated all family members and washed all bed linens. The child's symptoms resolved completely within a week.
💡 Lesson: Treating all family members and maintaining hygiene is crucial to prevent reinfection.
👤 A 35-year-old adult with abdominal pain and fatigue, diagnosed with hookworm infection.
The patient took this medicine as a single dose. Within a few days, the abdominal pain subsided and energy levels improved. The doctor also recommended iron supplements for anemia.
💡 Lesson: This medicine effectively treats hookworm infection, but additional treatment for anemia may be needed.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine starts working within hours, but it may take a few days for symptoms to fully resolve as the worms are expelled.

Q: Can I take this medicine without food?

A: Yes, it can be taken with or without food, but taking it with food may reduce stomach upset.

Q: Is this medicine safe for children?

A: It is safe for children 2 years and older when taken as prescribed. Do not use in children under 2 years without medical advice.

Q: What should I do if I miss a dose?

A: Take it as soon as you remember, but if it's almost time for your next dose, skip the missed dose. Do not double dose.

Q: Can I drink alcohol while taking this medicine?

A: It is best to avoid alcohol as it may increase drowsiness and dizziness.

Q: How do I prevent reinfection?

A: Wash hands frequently, keep nails short, change bed linens and underwear daily, and treat all family members simultaneously.

🤔 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 Thelmex 250mg Tablet

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 taken without a prescription.
    Fact: This medicine is a prescription drug and should only be taken under medical supervision.
  • Myth: One dose is enough for all types of worms.
    Fact: For pinworm infections, a second dose after 2 weeks is often needed to prevent reinfection.
  • Myth: This medicine is safe for children under 2 years.
    Fact: It should not be used in children under 2 years without medical advice.

🔄 Alternative Options

Generic Alternatives

  • Pyrantel pamoate oral suspension (generic)

Brand Alternatives

  • Nemocid oral suspension

📊 Comparison with Similar Medicines

[{"medicine":"Pyrantel pamoate","class":"Tetrahydropyrimidine","indications":"Pinworm, roundworm, hookworm","dosage_form":"Oral suspension","notes":"Single dose, repeat for pinworm"},{"medicine":"Albendazole","class":"Benzimidazole","indications":"Pinworm, roundworm, hookworm, tapeworm","dosage_form":"Tablet, suspension","notes":"Single dose, may require repeat"},{"medicine":"Mebendazole","class":"Benzimidazole","indications":"Pinworm, roundworm, hookworm","dosage_form":"Tablet, suspension","notes":"Single dose, repeat for pinworm"}]

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