Acitak 300 mg Tablet: Complete Medicine Guide
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 vomit or black, tarry stools
- Severe abdominal pain that does not go away
- Difficulty breathing or swelling of face, lips, or throat
- Yellowing of skin or eyes (jaundice)
- Decreased urine output or swelling in legs
- Confusion, hallucinations, or severe dizziness
- Unusual bleeding or bruising
If experiencing severe symptoms, call emergency services immediately.
What is acitak 300 mg tablet used for?
This medicine is an H2 blocker that reduces stomach acid. It is used to treat heartburn, acid reflux, and ulcers. It works by blocking histamine receptors in the stomach. The usual adult dose is 300 mg up to four times daily, but dosing must be individualized by a doctor.
- Generic Name: Cimetidine
- Manufacturer: Astron Healthcare
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 acitak 300 mg tablet के बारे में (Hindi Summary)
उपयोग: यह दवा सीमेटिडीन 300 मिलीग्राम की एक ओरल टैबलेट है, जिसका उपयोग पेट की अम्लता को कम करने के लिए किया जाता है। यह गैस्ट्रोएसोफेजियल रिफ्लक्स डिजीज (जीईआरडी), पेप्टिक अल्सर, और ज़ोलिंगर-एलिसन सिंड्रोम जैसी स्थितियों के इलाज में मदद करती है। यह दवा पेट में हिस्टामिन रिसेप्टर्स को ब्लॉक करके एसिड का उत्पादन कम करती है, जिससे जलन, एसिडिटी और अल्सर के लक्षणों में राहत मिलती है। यह दवा डॉक्टर के पर्चे के बिना नहीं लेनी चाहिए।
साइड इफेक्ट्स: इस दवा के आम दुष्प्रभावों में सिरदर्द, चक्कर आना, नींद आना, दस्त, कब्ज और पेट में असुविधा शामिल हैं। ये आमतौर पर हल्के और अस्थायी होते हैं। कभी-कभी भ्रम, मतिभ्रम, अवसाद, और पुरुषों में स्तन वृद्धि जैसे गंभीर दुष्प्रभाव भी हो सकते हैं। यदि आपको कोई गंभीर या लगातार दुष्प्रभाव महसूस हो, 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। गुर्दे या यकृत की बीमारी, अस्थमा, या किसी भी एलर्जी की जानकारी दें। इस दवा के साथ शराब का सेवन न करें। गर्भावस्था या स्तनपान के दौरान डॉक्टर से सलाह लें। दवा को बच्चों की पहुंच से दूर रखें और कमरे के तापमान पर स्टोर करें।
💊 acitak 300 mg tablet Uses & Benefits
[{"condition":"Gastroesophageal reflux disease (GERD)","description":"Reduces stomach acid production, relieving heartburn and acid regurgitation.","evidence":"Well-established"},{"condition":"Peptic ulcer disease","description":"Helps heal duodenal and gastric ulcers by reducing acid secretion.","evidence":"Well-established"},{"condition":"Zollinger-Ellison syndrome","description":"Controls excessive acid production caused by gastrin-secreting tumors.","evidence":"Well-established"},{"condition":"Heartburn and acid indigestion","description":"Provides relief from occasional heartburn and acid indigestion.","evidence":"Well-established"},{"condition":"Prevention of stress ulcers","description":"Used in hospitalized patients to prevent stress-related mucosal bleeding.","evidence":"Well-established"}]
Off-label uses: [{"condition":"Warts","description":"Sometimes used topically or intralesionally for treatment of warts.","evidence":"Limited"},{"condition":"Herpes simplex infections","description":"Occasionally used to reduce frequency of outbreaks.","evidence":"Limited"}]
Primary treatment for: Gastroesophageal reflux disease (GERD)
Also treats: Peptic ulcer disease, Zollinger-Ellison syndrome, Heartburn, Acid indigestion
📋 Drug Information
| Generic Name(s) | Cimetidine |
| Brand Name | Acitak |
| Manufacturer | Astron Healthcare |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | GASTRO INTESTINAL |
| Action Class | H2 Receptor Blocker |
| Route of Administration | Oral |
| Storage | Store at room temperature between 15°C and 30°C (59°F to 86°F). Keep away from moisture and heat. Keep out of reach of children. |
| 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
This medicine works by competitively blocking histamine H2 receptors located on the parietal cells of the stomach. By blocking these receptors, it reduces the production of gastric acid, both basal and stimulated. This leads to decreased acidity in the stomach and relief of symptoms associated with acid-related disorders.
Mechanism Steps
💡 How to Take acitak 300 mg tablet
Strength: This medicine is available as a 300 mg immediate-release tablet for oral administration.
Dosage Information
| Adult Dosage | The usual adult dose of this medicine for gastroesophageal reflux disease is 300 mg taken orally up to four times a day, or 400 mg twice daily. For peptic ulcer disease, the dose is typically 300 mg four times a day or 800 mg at bedtime. For Zollinger-Ellison syndrome, the dose is individualized based on acid output. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. |
| Elderly Dosage | Elderly patients may have reduced renal function and are more sensitive to the central nervous system effects of this medicine. Dose reduction may be necessary. Consult a doctor for appropriate dosing. |
| Renal Impairment | In patients with renal impairment, the dose should be reduced. For creatinine clearance less than 50 mL/min, the usual dose is 300 mg every 12 hours. For creatinine clearance less than 15 mL/min, the dose is 300 mg every 24 hours. Dose must be individualized by a qualified clinician. |
| Hepatic Impairment | No specific dose adjustment is provided in the labeling for hepatic impairment. Use with caution and monitor liver function. Dose must be individualized by a qualified clinician. |
| Maximum Daily Dose | The maximum recommended daily dose is 2400 mg for Zollinger-Ellison syndrome, but for other indications, it is usually up to 1600 mg per day. Dose must be individualized by a qualified clinician. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of acitak 300 mg 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 | |
| Phenytoin | Major | |
| Theophylline | Major | |
| Lidocaine | Major | |
| Ketoconazole | Moderate | |
| Itraconazole | Moderate | |
| Atazanavir | Moderate | |
| Antacids | Minor | |
| Metoclopramide | Minor | |
| Caffeine | Minor |
🚨 Major Interactions
- Warfarin
- Phenytoin
- Theophylline
- Lidocaine
⚡ Moderate Interactions
- Ketoconazole
- Itraconazole
- Atazanavir
🍷 Alcohol Interaction
Avoid consuming alcohol while taking this medicine, as it can increase stomach irritation and may worsen your underlying condition. Alcohol may also interact with this medicine to cause increased drowsiness and dizziness.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Hypersensitivity to cimetidine or any component of the tablet","Severe renal impairment (dose adjustment required)","Use with caution in patients with hepatic impairment"]
⚠️ Warnings & Precautions
["This medicine may cause confusion, especially in elderly patients or those with kidney disease. Use with caution.","Avoid driving or operating machinery until you know how this medicine affects you.","This medicine can interact with many drugs. Always inform your doctor about all medications you are taking.","Do not exceed the recommended dose without consulting your doctor.","Long-term use may lead to vitamin B12 deficiency. Monitor if used for extended periods."]
🤱 Lactation Safety
This medicine is excreted in breast milk. It is considered safe for use during breastfeeding, but monitoring for potential side effects in the infant is advised. Consult your doctor before use.
💊 Overdose Management
Overdose may cause symptoms such as nausea, vomiting, diarrhea, dizziness, and confusion. Seek immediate medical attention. Treatment is supportive and symptomatic. Hemodialysis may be considered in severe cases.
⏰ 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
Before taking this medicine, tell your doctor if you have kidney or liver disease, asthma, or any allergies. This medicine can interact with many other medicines, including blood thinners, seizure medicines, and certain antibiotics, so always provide a complete list of your medications to your doctor. Avoid drinking alcohol while taking this medicine, as it may increase stomach irritation. Do not take this medicine for longer than prescribed without medical supervision. If you are pregnant, planning to become pregnant, or breastfeeding, consult your doctor before using this medicine. Keep this medicine out of the reach of children and store it at room temperature away from moisture and heat.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients are more likely to experience confusion and mental status changes with this medicine, especially if they have kidney impairment. Dose reduction may be necessary. Regular monitoring of renal function is advised.
🤰 Pregnancy Planning (TTC)
If you are planning to become pregnant, consult your doctor before taking this medicine. It is FDA Category B, but use only if clearly needed. Discuss the risks and benefits with your healthcare provider.
🏥 Post-Surgery Considerations
This medicine may be used after surgery to prevent stress ulcers. Follow your doctor's instructions regarding dosing and duration. Inform your surgeon if you are taking this medicine before any surgery.
🦷 Dental Procedures
Inform your dentist if you are taking this medicine. It may interact with certain medications used during dental procedures. No specific precautions are usually needed, but your dentist may adjust your treatment plan.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
Moderate exercise is generally safe while taking this medicine. However, avoid vigorous exercise immediately after meals, as it may worsen reflux. Listen to your body and consult your doctor if you experience any discomfort.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine may cause drowsiness or dizziness in some people. Avoid driving or operating heavy machinery until you know how it affects you. It is generally safe to continue your daily activities, but take precautions if you feel sleepy.
🛑 When to Stop This Medicine
Do not stop taking this medicine without consulting your doctor. If you experience severe side effects or your symptoms worsen, contact your doctor immediately. Your doctor will advise you on when and how to safely stop the medicine.
📅 Long-Term Use Effects
Long-term use of this medicine may lead to vitamin B12 deficiency and increased risk of bone fractures. It may also cause breast enlargement in men and decreased libido. Regular monitoring of renal and hepatic function is advised. Do not use for longer than prescribed without medical supervision.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Dietary changes, weight loss, and avoiding trigger foods can help manage acid reflux.
Evidence: Well-establishedAnother class of acid-reducing medicines that may be prescribed if H2 blockers are not effective.
Evidence: Well-establishedIn severe cases of GERD, surgical options like fundoplication may be considered.
Evidence: Well-established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
No specific interactions with vaccines 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
When traveling, carry this medicine in its original packaging along with a copy of your prescription. Store it in a cool, dry place away from direct sunlight. If crossing time zones, adjust your dosing schedule as advised by your doctor. Keep enough supply for your entire trip. Check local customs regulations regarding prescription medicines.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: This medicine starts reducing stomach acid within 30 to 60 minutes after taking a dose.
A: It can interact with many medicines. Always consult your doctor or pharmacist before combining with other drugs.
A: It is FDA Pregnancy Category B. Use only if clearly needed and under medical supervision.
A: Common side effects include headache, dizziness, diarrhea, and constipation. These are usually mild and temporary.
🤔 Common Patient Concerns
🛑 Myths vs. Facts
- Myth: This medicine can cure ulcers instantly.
Fact: This medicine helps reduce acid and promotes healing, but ulcers take time to heal. Complete the full course as prescribed. - Myth: This medicine is safe to take with any other medicine.
Fact: This medicine interacts with many drugs. Always consult your doctor or pharmacist before combining with other medicines. - Myth: You can stop taking this medicine as soon as you feel better.
Fact: Do not stop without consulting your doctor. Stopping abruptly may cause symptoms to return.
🔄 Alternative Options
Generic Alternatives
- Cimetidine 300 mg tablet
Brand Alternatives
- Acitak 300 mg tablet