A Nil Tablet: Complete Medicine Guide
Clinical Background: Balrampur Hospital, Lucknow (Emergency Medicine) & SCPM Hospital | Standards: CDSCO, Indian Pharmacopoeia (IP) & WHO
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
- Seizures or confusion
If experiencing severe symptoms, call emergency services immediately.
What is a nil tablet used for?
This medicine is a combination of metronidazole and diloxanide used to treat intestinal parasitic infections like amoebiasis and giardiasis. It works by killing the parasites in the gut. It is a prescription medicine and should be taken exactly as directed by your doctor.
- Generic Name: Metronidazole + Diloxanide
- Manufacturer: Pan Pharmaceuticals Ltd
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 a nil tablet के बारे में (Hindi Summary)
उपयोग: यह दवा मेट्रोनिडाजोल और डाइलोक्सानाइड का संयोजन है, जिसका उपयोग आंतों में होने वाले परजीवी संक्रमण जैसे अमीबiasis (अमीबिक पेचिश) और जिआर्डिया के इलाज के लिए किया जाता है। यह दवा परजीवियों को मारकर दस्त, पेट दर्द और अन्य लक्षणों को कम करती है। इसे डॉक्टर के निर्देशानुसार ही लें।
साइड इफेक्ट्स: आम दुष्प्रभावों में जी मिचलाना, मुँह में धातु जैसा स्वाद, पेट में असहजता, सिरदर्द और भूख में कमी शामिल हैं। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन यदि साँस लेने में कठिनाई, चेहरे या गले में सूजन, या असामान्य रक्तस्राव हो तो तुरंत डॉक्टर से मिलें।
सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। उपचार के दौरान और आखिरी खुराक के 48 घंटे बाद तक शराब बिल्कुल न लें, क्योंकि इससे गंभीर प्रतिक्रिया हो सकती है। यदि आपको लीवर या किडनी की समस्या है, या आप गर्भवती या स्तनपान करा रही हैं, तो डॉक्टर को बताएं। दवा को बच्चों की पहुँच से दूर रखें।
a nil tablet Uses & Benefits
Treats intestinal infection caused by Entamoeba histolytica, relieving diarrhea, abdominal pain, and bloody stools.
Eradicates Giardia lamblia parasites from the intestine, resolving diarrhea and malabsorption.
Used for certain anaerobic infections when metronidazole is indicated, though diloxanide adds no antibacterial coverage.
Off-Label & Investigational Uses:
Metronidazole alone is standard; combination with diloxanide is not standard and not recommended.
📋 Drug Information
| Generic Name(s) | Metronidazole + Diloxanide |
| Brand Name | Aldezol DF 400mg/500mg Tablet |
| Manufacturer | Pan Pharmaceuticals Ltd |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | ANTI INFECTIVES |
| Action Class | Antiprotozoal |
| Route of Administration | Oral |
| Storage | Store at room temperature between 15°C and 30°C. Protect from light and moisture. Keep in the original container. |
| Shelf Life | 24 months from the date of manufacture. |
| WHO Guideline | Not established from the available information. |
| ICMR Guideline | Not established from the available information. |
👨⚕️ Doctor's Practical Tips
Evidence-based practical advice from experienced clinicians
🔍 Is This Medicine Right for Your Symptom?
Educational reference. Always consult a doctor for diagnosis.
🔬 How This Medicine Works (Pharmacology)
Pharmacokinetics
How It Works
Metronidazole enters susceptible microorganisms and is reduced by ferredoxin-like electron transport proteins, creating reactive intermediates that damage DNA and inhibit nucleic acid synthesis, leading to cell death. Diloxanide is a luminal amoebicide that acts primarily in the intestinal lumen, killing trophozoites of Entamoeba histolytica by an unknown mechanism, possibly interfering with protein synthesis.
Mechanism Steps
💡 How to Take a nil tablet
Strength: Each tablet contains Metronidazole 200 mg and Diloxanide 250 mg.
Dosage Information
| Adult Dosage | The usual adult dose is one tablet taken orally two to three times daily, depending on the infection being treated. The exact dose and duration must be individualized by a qualified clinician based on the indication, age, weight, renal and hepatic function. Always follow your doctor's prescription. Do not self-medicate. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician for appropriate dosing in children. |
| Elderly Dosage | Elderly patients may be more sensitive to the side effects of metronidazole, especially neurological effects. Dose adjustment may be needed based on liver and kidney function. Consult your doctor. |
| Renal Impairment | In patients with severe renal impairment, metronidazole dose may need to be reduced. Diloxanide dose adjustment in renal impairment is not well established. Consult your doctor for individualized dosing. |
| Hepatic Impairment | In patients with severe liver disease, metronidazole dose should be reduced due to prolonged half-life. Diloxanide should be used with caution. Consult your doctor for individualized dosing. |
| Maximum Daily Dose | The maximum daily dose is not established from available information. Follow your doctor's prescription. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of a nil tablet
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Warfarin | Major | |
| Alcohol | Major | |
| Lithium | Major | |
| Phenytoin | Moderate | |
| Cimetidine | Moderate | |
| Disulfiram | Moderate | |
| Cyclosporine | Moderate | |
| Antacids | Minor | |
| Oral contraceptives | Minor |
🚨 Major Interactions
- Warfarin
- Alcohol
- Lithium
- Phenytoin
⚡ Moderate Interactions
- Cimetidine
- Disulfiram
- Cyclosporine
🍷 Alcohol Interaction
Alcohol must be strictly avoided while taking this medicine and for at least 48 hours after the last dose. Combining them can cause a disulfiram-like reaction with flushing, severe nausea, vomiting, headache, and rapid heartbeat. It may also reduce the effectiveness of treatment.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Known hypersensitivity to metronidazole, diloxanide, or any component of the formulation","First trimester of pregnancy (unless clearly needed)","Severe liver disease without specialist supervision","Use of disulfiram within the past two weeks","Alcohol consumption during treatment and for 48 hours after"]
⚠️ Warnings & Precautions
["Avoid alcohol completely during and for 48 hours after treatment.","May cause dizziness or confusion; avoid driving or operating machinery until you know how it affects you.","Inform your doctor if you have liver or kidney disease.","May cause dark urine, which is harmless.","Do not use for longer than prescribed without medical advice.","May interact with blood thinners; inform your doctor if you take warfarin.","Not recommended for use in children under 12 years without specialist advice."]
🤱 Lactation Safety
Metronidazole passes into breast milk. It is generally considered safe during breastfeeding, but some experts recommend avoiding breastfeeding for 12-24 hours after a single high dose. Diloxanide safety in breast milk is not well established. Consult your doctor before breastfeeding while on this medicine.
💊 Overdose Management
Overdose may cause nausea, vomiting, dizziness, and headache. In severe cases, seizures or peripheral neuropathy may occur. There is no specific antidote. Treatment is supportive and symptomatic. Seek immediate medical attention if overdose is suspected.
⏰ 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
Take this medicine exactly as prescribed by your doctor. Do not skip doses or stop early. Avoid alcohol completely during treatment and for at least 48 hours after the last dose, as it can cause severe nausea, vomiting, flushing, and rapid heartbeat. Inform your doctor if you have liver or kidney problems, or if you are pregnant or breastfeeding. Do not share this medicine with others. Keep out of reach of children.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients may be more prone to neurological side effects like dizziness and peripheral neuropathy. Dose adjustment may be needed based on liver and kidney function. Regular monitoring is advised.
🤰 Pregnancy Planning (TTC)
If you are planning pregnancy, consult your doctor before taking this medicine. It is not recommended during the first trimester. Use effective contraception during treatment if you are of childbearing age.
🏥 Post-Surgery Considerations
Inform your surgeon and anesthesiologist if you are taking this medicine before surgery. It may interact with other medications used during surgery.
🦷 Dental Procedures
Inform your dentist if you are taking this medicine before any dental procedure. It may interact with antibiotics or anesthetics used.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
If you experience dizziness or fatigue while taking this medicine, avoid strenuous exercise until you feel better. Light activity is generally safe.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine may cause dizziness or confusion in some people. Avoid driving or operating heavy machinery until you know how it affects you. Most people can continue their daily activities with caution.
🛑 When to Stop This Medicine
Do not stop this medicine without consulting your doctor. Complete the full course as prescribed, even if you feel better. If you experience serious side effects, contact your doctor immediately.
📅 Long-Term Use Effects
Long-term use of metronidazole may rarely cause peripheral neuropathy, which can be irreversible. It may also increase the risk of certain infections due to changes in gut flora. Regular monitoring may be needed if used for prolonged periods. Diloxanide long-term effects are not well established. Use only as prescribed.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
A similar antiprotozoal with a longer half-life and simpler dosing.
Evidence: Well-establishedA luminal amoebicide used for mild intestinal amoebiasis.
Evidence: Established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
No specific vaccine interactions are known. However, live vaccines should be avoided during acute infection. Consult your doctor.
📦 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 light and moisture. If traveling across time zones, adjust dosing schedule as advised by your doctor. Avoid alcohol during travel. Check customs regulations for carrying prescription medicines.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: Symptom improvement usually begins within 24 to 48 hours, but you must complete the full course as prescribed.
A: Yes, taking it with food helps reduce stomach upset and nausea.
A: 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.
A: It is not recommended during the first trimester unless clearly needed. Consult your doctor if you are pregnant or planning pregnancy.
A: No, alcohol must be strictly avoided during treatment and for at least 48 hours after the last dose.
🤔 Common Patient Concerns
🔄 Substitutes for a nil tablet
View AllAlternative brands with exact same active ingredient:
-
qugyl ss 200mg/250mg tabletRPG Life Sciences Ltd ₹3.94 37.5% CHEAPER
-
dyrade m 200 mg/250 mg tabletCipla Ltd ₹6.39 1.4% COSTLIER
-
ameebee 200mg/250mg tabletTOSC International Pvt Ltd ₹7.00 11.1% COSTLIER
-
Fremogyl 200 mg/250 mg TabletDales Pharmaceuticals Ltd ₹7.40 17.5% COSTLIER
-
antiba 200mg/250mg tabletSmilax Pharmaceuticals ₹11.25 78.6% COSTLIER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: This medicine can cure any diarrhea.
Fact: It only treats specific parasitic and anaerobic infections. It is not effective for viral or most bacterial diarrheas. - Myth: You can stop taking it once you feel better.
Fact: You must complete the full course to prevent relapse and resistance. - Myth: It is safe to drink alcohol while on this medicine.
Fact: Alcohol can cause a severe reaction and must be avoided completely.
🔄 Alternative Options
Generic Alternatives
- Metronidazole 200 mg + Diloxanide 250 mg tablet