isordil 10 tablet - Isosorbide Dinitrate (10mg) medicine

Isordil 10 Tablet: Complete Medicine Guide

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🏭 Ipca Laboratories Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 26, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for angina prevention and heart failure.
Reviewed by
SaathiMed Expert Panel | Sep 26, 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 chest pain that does not go away with rest or your fast-acting nitrate
  • Fainting or severe dizziness
  • Blurred vision or confusion
  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing
  • Very slow or irregular heartbeat
  • Bluish discoloration of lips or skin

If experiencing severe symptoms, call emergency services immediately.

What is isordil 10 tablet used for?

This medicine is a nitrate used to prevent angina attacks and treat heart failure. It works by widening blood vessels to improve blood flow to the heart. It is not for immediate relief of an ongoing angina attack.

  • Generic Name: Isosorbide Dinitrate (10mg)
  • Manufacturer: Ipca Laboratories Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 isordil 10 tablet के बारे में (Hindi Summary)

उपयोग: यह दवा एंजाइना (सीने में दर्द) के दौरों को रोकने और दिल की विफलता के इलाज में उपयोग की जाती है। यह रक्त वाहिकाओं को फैलाकर दिल तक रक्त का प्रवाह बढ़ाती है और दिल पर दबाव कम करती है। यह दवा तीव्र एंजाइना के दौरे को तुरंत रोकने के लिए नहीं है। इसका उपयोग डॉक्टर के निर्देशानुसार ही करें।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में सिरदर्द, चक्कर आना, चेहरे पर गर्मी लगना और धड़कन तेज होना शामिल हैं। सिरदर्द अक्सर शुरुआत में होता है और कुछ दिनों में ठीक हो जाता है। अगर आपको बहुत ज्यादा चक्कर आए, बेहोशी महसूस हो, या सांस लेने में तकलीफ हो, तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। शराब न पिएं क्योंकि इससे रक्तचाप बहुत कम हो सकता है। उठते समय धीरे-धीरे उठें ताकि चक्कर न आएं। एंजाइना के तीव्र दौरे के लिए इस दवा का उपयोग न करें। अपनी सभी दवाओं के बारे में डॉक्टर को बताएं, खासकर नपुंसकता की दवाओं के बारे में।

💡 Did You Know? The first generic medicine was introduced in India in 1970 after the Patents Act was amended.

💊 isordil 10 tablet Uses & Benefits

[{"condition":"Prevention of angina pectoris","description":"This medicine is used regularly to reduce the frequency and severity of angina attacks in people with coronary artery disease.","evidence":"Well-established"},{"condition":"Heart failure","description":"This medicine is used as part of combination therapy to relieve symptoms and improve exercise tolerance in chronic heart failure.","evidence":"Well-established"},{"condition":"Hypertension in specific settings","description":"This medicine may be used in selected patients to help lower blood pressure, often in combination with other medicines.","evidence":"Moderate"},{"condition":"Esophageal spasm","description":"This medicine is sometimes used to relieve chest pain caused by esophageal spasm after other causes have been ruled out.","evidence":"Limited"}]

Off-label uses: [{"condition":"Raynaud's phenomenon","description":"This medicine is occasionally prescribed off-label to improve blood flow to the fingers and toes in people with Raynaud's phenomenon.","evidence":"Limited"},{"condition":"Anal fissure","description":"This medicine has been used off-label in some topical or oral forms to help heal anal fissures by improving blood flow.","evidence":"Limited"}]

Primary treatment for: Angina pectoris

Also treats: Heart failure, Hypertension, Esophageal spasm

📋 Drug Information

Generic Name(s)Isosorbide Dinitrate (10mg)
Brand Nameisordil 10 tablet
ManufacturerIpca Laboratories Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassCARDIAC
Action ClassNO Donors
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C. Keep in a dry place away from direct sunlight and moisture. Keep out of reach of children.
Shelf Life24 months from the date of manufacture, or as printed on the pack.
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 exactly as prescribed, and do not change the dose without consulting your doctor.
2
Stand up slowly from sitting or lying down to prevent dizziness or fainting.
3
Avoid alcohol completely while taking this medicine because it can cause a dangerous drop in blood pressure.
4
Do not use this medicine to treat an acute angina attack; use your fast-acting nitrate as instructed.
5
Keep a record of your angina attacks and share it with your doctor at each visit.
6
Tell your doctor if you are taking any erectile dysfunction medicines, as combining them can be dangerous.
7
Do not stop this medicine suddenly on your own, as it can worsen your heart condition.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Chest pain (angina)
This medicine is commonly prescribed to prevent angina attacks.
Likely Use
✅
Shortness of breath in heart failure
This medicine can help relieve symptoms of heart failure.
Likely Use
❌
Fever
This medicine is not a fever reducer.
Not Primary
❌
Headache
This medicine may cause headache as a side effect, but it is not used to treat headache.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is absorbed from the gastrointestinal tract after oral administration. The exact absorption rate and extent can vary between individuals and may be affected by food.
DistributionThis medicine is widely distributed throughout the body after absorption. It is not known to bind extensively to plasma proteins.
Protein BindingNot established from the available information.
MetabolismThis medicine undergoes extensive metabolism in the liver. It is converted into active metabolites, including isosorbide-5-mononitrate and isosorbide-2-mononitrate, which contribute to its effects.
Half-LifeThe elimination half-life of this medicine is approximately 1 hour, but its active metabolites have longer half-lives of about 4 to 5 hours.
ExcretionThis medicine and its metabolites are mainly excreted by the kidneys in the urine.
BioavailabilityThe oral bioavailability of this medicine is approximately 20 to 25 percent due to first-pass metabolism in the liver.
Onset of ActionWhen taken by mouth, this medicine usually starts to relieve symptoms within 30 to 60 minutes, but it is not intended for immediate relief of an ongoing angina attack.
Peak Plasma TimePeak plasma levels of this medicine are usually reached within 1 hour after oral administration.
Duration of ActionThe effects of this medicine generally last for about 4 to 6 hours after a single oral dose.

How It Works

This medicine works by releasing nitric oxide in the body. Nitric oxide activates an enzyme called guanylate cyclase, which increases cyclic GMP levels in smooth muscle cells. Higher cyclic GMP causes the smooth muscle in blood vessels to relax, leading to vasodilation. This widening of veins and arteries reduces the heart's workload and improves blood supply to the heart muscle, which helps prevent angina.

Mechanism Steps

1
Nitric oxide release: This medicine is converted in the body to release nitric oxide, a natural gas that signals blood vessels to relax.
2
Guanylate cyclase activation: Nitric oxide activates the enzyme guanylate cyclase inside smooth muscle cells.
3
Cyclic GMP increase: Activation of guanylate cyclase raises the level of cyclic GMP, which is a key messenger molecule.
4
Smooth muscle relaxation: Higher cyclic GMP causes the smooth muscle cells in blood vessel walls to relax.
5
Vasodilation and reduced cardiac workload: The blood vessels widen, which lowers blood pressure and reduces the heart's oxygen demand, helping to prevent angina.

💡 How to Take isordil 10 tablet

Strength: Isosorbide Dinitrate 10 mg immediate-release tablet

1Take this medicine by mouth with a glass of water.
2You may take it with or without food, but take it the same way each time.
3Swallow the tablet whole; do not crush or chew unless your doctor says it is okay.
4Follow your doctor's schedule exactly, including any nitrate-free interval.
5Do not take this medicine to relieve an acute angina attack.
6If you feel dizzy after taking it, sit or lie down until the feeling passes.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 5 mg to 20 mg taken two to three times a day, depending on the condition being treated. For prevention of angina, the dose is often 10 mg to 20 mg taken two to three times daily. Your doctor may adjust the dose based on your response and tolerance. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients may be more sensitive to the blood pressure lowering effects of this medicine. Start with a lower dose and monitor blood pressure closely. Dose must be individualized by a qualified clinician.
Renal ImpairmentNo specific dose adjustment is established for mild to moderate kidney disease. In severe kidney disease, use with caution and follow your doctor's advice.
Hepatic ImpairmentUse with caution in patients with severe liver disease. Dose adjustment may be needed. Consult your doctor.
Maximum Daily DoseThe maximum recommended daily dose is generally 120 mg, but this must be determined by your doctor based on your condition.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
Can be taken with or without food
Food does not significantly affect absorption, but taking it consistently is important.
Grapefruit juice
Avoid large amounts
May increase drug levels by affecting liver enzymes.
High-fat meals
Take with caution
May delay absorption and reduce peak effect.

⏰ 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 isordil 10 tablet

✅ Common Side Effects

Headache (Common (more than 10%))
This often improves after a few days. If it persists or is severe, consult your doctor.
Dizziness (Common (5-10%))
Stand up slowly and avoid driving if you feel dizzy. Tell your doctor if it continues.
Flushing (Common (5-10%))
This usually goes away on its own. Stay hydrated and avoid alcohol.
Fast heartbeat (Uncommon (1-5%))
Report a persistent fast heartbeat to your doctor.
Lightheadedness on standing (Uncommon (1-5%))
Rise slowly from sitting or lying down. If you feel faint, sit or lie down immediately.

🚨 Serious Side Effects

Severe low blood pressure (Rare (less than 0.1%))
Seek immediate medical attention if you feel faint, have blurred vision, or cannot stand up.
Fainting (Rare (less than 0.1%))
Lie down with legs elevated and call for emergency help if you faint.
Allergic reaction with swelling (Very rare (less than 0.01%))
Get emergency help if you have swelling of the face, lips, tongue, or throat, or difficulty breathing.
Slow or irregular heartbeat (Rare (less than 0.1%))
Contact your doctor right away if you notice a very slow pulse or palpitations.

⚠️ Rare Side Effects

Methemoglobinemia
Seek emergency care if you have bluish lips or skin, confusion, or shortness of breath.
Exfoliative dermatitis
Stop the medicine and get medical help if you develop widespread skin peeling or rash.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Sildenafil Major
Tadalafil Major
Riociguat Major
Alcohol Major
Beta blockers Moderate
Calcium channel blockers Moderate
Other nitrates Moderate
Aspirin Minor
Antacids Minor
Grapefruit juice Minor

🚨 Major Interactions

  • Sildenafil, tadalafil, vardenafil
  • Riociguat
  • Alcohol

⚡ Moderate Interactions

  • Other blood pressure medicines
  • Beta blockers
  • Calcium channel blockers

🍷 Alcohol Interaction

Alcohol can increase the blood pressure lowering effect of this medicine and cause severe dizziness, fainting, or a drop in blood pressure. 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

["Allergy to isosorbide dinitrate or other nitrates","Severe low blood pressure","Use of erectile dysfunction medicines such as sildenafil, tadalafil, or vardenafil","Use of riociguat","Severe anemia","Increased intracranial pressure","Constrictive pericarditis or cardiac tamponade"]

⚠️ Warnings & Precautions

["Do not use this medicine to treat an acute angina attack; use a fast-acting nitrate instead.","Avoid alcohol while taking this medicine.","Stand up slowly to prevent dizziness or fainting.","Tell your doctor if you have low blood pressure, heart failure, or liver or kidney disease.","Do not stop this medicine suddenly without talking to your doctor.","Use with caution in the elderly, who may be more sensitive to blood pressure lowering effects.","This medicine may cause headaches; do not increase the dose on your own to manage headaches."]

🤱 Lactation Safety

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

💊 Overdose Management

Overdose of this medicine can cause severe low blood pressure, headache, dizziness, fainting, and a fast heartbeat. If you suspect an overdose, seek emergency medical help immediately. Treatment is supportive and may include fluids, medicines to raise blood pressure, and monitoring in a hospital.

⏰ 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 take a double dose to make up for a missed one.

Additional Safety Advice

General Safety

Take this medicine exactly as your doctor prescribes, and do not change the dose without medical advice. Stand up slowly from sitting or lying positions to avoid dizziness. Avoid alcohol because it can make low blood pressure worse. Tell your doctor about all other medicines you take, especially those for erectile dysfunction, blood pressure, or heart conditions. Do not use this medicine to relieve an angina attack that is already in progress. Keep a fast-acting nitrate with you if your doctor has prescribed one for attacks. Store this medicine in its original container away from heat and moisture. If you become pregnant, plan to become pregnant, or are breastfeeding, talk to your doctor before continuing this medicine.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are more sensitive to the blood pressure lowering effects of this medicine. They may experience more dizziness and are at higher risk of falls. Start with a lower dose and monitor blood pressure regularly.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, talk to your doctor before continuing this medicine. The safety of this medicine during pregnancy is not fully established, and your doctor will weigh the benefits and risks.

🏥 Post-Surgery Considerations

Inform your surgeon and anesthesiologist that you are taking this medicine before any surgery. It may interact with medicines used during surgery and affect blood pressure. Your doctor may advise you to stop it temporarily before surgery.

🦷 Dental Procedures

Tell your dentist that you are taking this medicine before any dental procedure. It can cause low blood pressure, and your dentist may need to take precautions. Local anesthetics with epinephrine should be used with caution.

💚 Lifestyle Tips for Better Results

🏃
Maintain a healthy weight to reduce the workload on your heart.
🥗
Engage in regular low-impact exercise like walking or swimming, as advised by your doctor.
😴
Avoid smoking, as it worsens heart disease and reduces the effects of this medicine.
💧
Eat a heart-healthy diet rich in fruits, vegetables, and whole grains.
🧘
Manage stress through relaxation techniques like deep breathing or meditation.
🌞
Get adequate sleep to support heart health.

🏋️ Exercise Considerations

Exercise is good for your heart, but start slowly and avoid sudden strenuous activity. If you feel chest pain, dizziness, or shortness of breath during exercise, stop and rest. Consult your doctor before starting any new exercise program.

🥗 Diet Recommendations

Include omega-3 rich foods like fish and flaxseeds.
Reduce intake of processed and high-fat foods.
Limit salt to help control blood pressure.
Stay well hydrated with water.
Avoid excessive caffeine, which can increase heart rate.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or lightheadedness, especially when you first start taking it. Avoid driving or operating heavy machinery until you know how it affects you. Most people can continue their normal work activities with caution.

🛑 When to Stop This Medicine

Do not stop this medicine on your own. Your doctor may adjust or stop it based on your condition. If you experience severe side effects, contact your doctor immediately for advice.

📅 Long-Term Use Effects

Long-term use of this medicine can lead to tolerance, where the medicine becomes less effective. To prevent this, doctors often prescribe a nitrate-free interval each day. Regular monitoring of blood pressure and heart symptoms is important. Long-term use does not usually cause organ damage, but it should be reviewed periodically by your doctor.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Lifestyle changes

Diet, exercise, and stress management can complement medicine for heart health.

Evidence: Well-established
Other anti-anginal medicines

Beta blockers, calcium channel blockers, and other nitrates may be used.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

There are no specific vaccine interactions with this medicine. However, people with heart disease should discuss vaccinations, such as flu and pneumonia vaccines, with their 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. Keep it in your hand luggage to avoid extreme temperatures. If you are traveling across time zones, consult your doctor about adjusting your dosing schedule. Store it away from direct sunlight and moisture. Check customs regulations for carrying prescription medicines to your destination.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 58-year-old man with a history of angina
He was prescribed this medicine to prevent angina attacks. He initially experienced headaches, which improved after a week. He learned to take it regularly and avoid alcohol. His angina attacks became less frequent, and he was able to walk longer distances without chest pain.
💡 Lesson: Taking the medicine regularly and following lifestyle advice can significantly reduce angina attacks.
👤 A 65-year-old woman with heart failure
She was started on this medicine along with other heart failure medicines. She felt dizzy in the first few days but improved after her doctor adjusted the dose. She was advised to monitor her blood pressure at home and report any fainting. Her symptoms of breathlessness improved over time.
💡 Lesson: Dose adjustment and monitoring are important, especially in the elderly, to balance benefits and side effects.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine usually starts to work within 30 to 60 minutes after taking a dose, but it is not for immediate relief of an ongoing angina attack.

Q: Can I take this medicine with food?

A: Yes, you can take it with or without food. However, take it the same way each time to keep absorption consistent.

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

A: 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 dose.

Q: Can I stop taking this medicine suddenly?

A: No, do not stop suddenly without talking to your doctor, as it can worsen your heart condition.

Q: Is it safe to take this medicine during pregnancy?

A: Use during pregnancy only if prescribed by your doctor. There is limited information about its safety in pregnant women.

🤔 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 isordil 10 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 to stop an ongoing angina attack.
    Fact: This medicine is for prevention. A fast-acting nitrate is used for immediate relief.
  • Myth: You can stop this medicine suddenly once you feel better.
    Fact: Stopping suddenly can cause withdrawal and worsen angina. Always consult your doctor before stopping.
  • Myth: Taking this medicine with erectile dysfunction drugs is safe.
    Fact: Combining them can cause severe low blood pressure and is dangerous.

🔄 Alternative Options

Generic Alternatives

  • Isosorbide Dinitrate 10 mg tablet

Brand Alternatives

  • Isordil 10 Tablet

📊 Comparison with Similar Medicines

[{"medicine":"Isosorbide Dinitrate","class":"Nitrate","onset":"30-60 minutes","duration":"4-6 hours","main_use":"Prevention of angina"},{"medicine":"Isosorbide Mononitrate","class":"Nitrate","onset":"30-60 minutes","duration":"12-24 hours","main_use":"Prevention of angina"},{"medicine":"Nitroglycerin","class":"Nitrate","onset":"1-3 minutes","duration":"10-30 minutes","main_use":"Acute angina relief"}]

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