mibeta sr 40 tablet - Propranolol (40mg) medicine

Armitol 40mg Tablet (Propranolol): Complete Medicine Guide

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🏭 Tas Med India Pvt Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 24, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for cardiovascular indications and migraine prophylaxis.
Reviewed by
SaathiMed Expert Panel | Sep 24, 2026

When to Call Your Doctor IMMEDIATELY

  • Severe dizziness or fainting
  • Difficulty breathing or wheezing
  • Very slow heartbeat (below 50 beats per minute)
  • Swelling of ankles or sudden weight gain
  • Chest pain that worsens or is not relieved
  • Yellowing of skin or eyes
  • Unusual bruising or bleeding

If experiencing severe symptoms, call emergency services immediately.

What is mibeta sr 40 tablet used for?

This medicine is a beta-blocker containing propranolol 40 mg, used to treat high blood pressure, angina, heart rhythm problems, migraine prevention, and essential tremor. It works by slowing the heart rate and reducing the heart's workload.

  • Generic Name: Propranolol (40mg)
  • Manufacturer: Tas Med India Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 mibeta sr 40 tablet के बारे में (Hindi Summary)

उपयोग: यह दवा प्रोप्रानोलोल 40 मिलीग्राम की एक टैबलेट है, जिसका उपयोग उच्च रक्तचाप, एनजाइना, दिल की धड़कन की समस्या, माइग्रेन की रोकथाम और आवश्यक कंपन के इलाज के लिए किया जाता है। यह दिल की धड़कन को धीमा करके और दिल पर दबाव कम करके काम करती है। इसे डॉक्टर के निर्देशानुसार ही लें और अचानक बंद न करें।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में थकान, ठंडे हाथ-पैर, चक्कर आना, धीमी धड़कन और नींद में गड़बड़ी शामिल हैं। कुछ लोगों को मतली या पेट में परेशानी हो सकती है। गंभीर दुष्प्रभावों में सांस लेने में कठिनाई, बेहोशी या दिल की धड़कन बहुत धीमी होना शामिल है। ऐसा होने पर तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। इसे अचानक बंद न करें, क्योंकि इससे दिल की समस्या बढ़ सकती है। अगर आपको अस्थमा, मधुमेह या दिल की बीमारी है, तो डॉक्टर को बताएं। शराब न पिएं। गाड़ी चलाने से बचें जब तक कि आपको इस दवा का असर पता न चल जाए। नियमित रूप से अपनी धड़कन और रक्तचाप की जांच कराएं।

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

💊 mibeta sr 40 tablet Uses & Benefits

[{"condition":"Hypertension","description":"Lowers blood pressure by reducing cardiac output and renin release, helping to prevent strokes and heart attacks.","evidence":"Well-established"},{"condition":"Angina pectoris","description":"Reduces the heart's oxygen demand by slowing heart rate and decreasing contractility, which relieves chest pain.","evidence":"Well-established"},{"condition":"Cardiac arrhythmias","description":"Controls rapid heart rhythms such as atrial fibrillation and ventricular tachycardia by blocking beta-adrenergic stimulation.","evidence":"Well-established"},{"condition":"Migraine prophylaxis","description":"Reduces the frequency and severity of migraine attacks through central and vascular effects.","evidence":"Well-established"},{"condition":"Essential tremor","description":"Helps reduce the amplitude of tremors by blocking peripheral beta-2 receptors in muscles.","evidence":"Well-established"},{"condition":"Performance anxiety","description":"Reduces symptoms like rapid heartbeat, sweating, and tremors in situational anxiety.","evidence":"Moderate"},{"condition":"Post-myocardial infarction","description":"Reduces the risk of recurrent heart attack and improves survival after a heart attack.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Thyrotoxicosis","description":"Used to control symptoms like rapid heart rate and tremor in hyperthyroidism.","evidence":"Moderate"},{"condition":"Akathisia","description":"May help reduce restlessness caused by antipsychotic medicines.","evidence":"Limited"},{"condition":"Infantile hemangioma","description":"Oral propranolol is used in specialized settings for treating severe hemangiomas in infants.","evidence":"Well-established"}]

Primary treatment for: Hypertension

Also treats: Angina pectoris, Cardiac arrhythmias, Migraine, Essential tremor, Post-myocardial infarction

📋 Drug Information

Generic Name(s)Propranolol (40mg)
Brand Namemibeta sr 40 tablet
ManufacturerTas Med India Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassCARDIAC
Action ClassBeta blocker- Non selective
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C, away from direct sunlight and moisture. Keep in the original container.
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 at the same time each day to maintain consistent blood levels.
2
Monitor your pulse regularly; if it falls below 50 beats per minute, contact your doctor.
3
Do not stop this medicine abruptly; your doctor will taper the dose gradually.
4
Inform your doctor if you have asthma, diabetes, or heart failure before starting this medicine.
5
Avoid alcohol while taking this medicine to prevent dizziness and low blood pressure.
6
If you miss a dose, take it as soon as you remember, but skip it if it's almost time for the next dose.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
High blood pressure
This medicine is commonly prescribed for this.
Likely Use
✅
Chest pain (angina)
This medicine helps reduce angina attacks.
Likely Use
✅
Migraine
This medicine is used for migraine prevention.
Likely Use
❌
Fever
This medicine is not a fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is rapidly and almost completely absorbed from the gastrointestinal tract after oral administration. However, it undergoes significant first-pass metabolism in the liver, which limits its systemic bioavailability.
DistributionThis medicine is highly lipophilic and distributes widely into body tissues, including the brain, lungs, and heart. It crosses the blood-brain barrier and the placenta.
Protein BindingApproximately 90% bound to plasma proteins, primarily albumin.
MetabolismThis medicine is extensively metabolized in the liver, mainly by the CYP2D6 enzyme, with additional contribution from CYP1A2 and CYP2C19. One of its metabolites, 4-hydroxypropranolol, has some beta-blocking activity.
Half-LifeThe elimination half-life is approximately 3 to 6 hours for immediate-release formulations.
ExcretionThis medicine and its metabolites are primarily excreted in the urine. Less than 1% is excreted unchanged in the urine.
BioavailabilityThe oral bioavailability is approximately 25% to 30% due to extensive first-pass metabolism.
Onset of ActionThe onset of action for heart rate reduction is within 1 to 2 hours after oral administration.
Peak Plasma TimePeak plasma concentrations are reached approximately 1 to 2 hours after oral intake.
Duration of ActionThe duration of action is approximately 6 to 12 hours for immediate-release tablets, depending on the dose and individual response.

How It Works

This medicine works by non-selectively blocking beta-1 and beta-2 adrenergic receptors. Blocking beta-1 receptors in the heart reduces heart rate, contractility, and conduction velocity, which lowers blood pressure and myocardial oxygen demand. Blocking beta-2 receptors in the lungs and blood vessels causes bronchoconstriction and vasoconstriction. It also reduces renin release from the kidneys, contributing to blood pressure reduction. In migraine prevention, it likely works by stabilizing neuronal membranes and modulating central adrenergic pathways.

Mechanism Steps

1
Binding to beta-adrenergic receptors: This medicine binds competitively to beta-1 and beta-2 adrenergic receptors throughout the body.
2
Blockade of sympathetic effects: By occupying these receptors, it prevents catecholamines like adrenaline and noradrenaline from exerting their effects.
3
Reduced cardiac workload: Blockade of beta-1 receptors in the heart leads to slower heart rate, reduced contractility, and lower oxygen demand.
4
Lowered blood pressure: Reduced cardiac output and decreased renin release from the kidneys contribute to blood pressure reduction.
5
Additional central effects: Central beta-blockade may contribute to migraine prevention and reduction of anxiety symptoms.

💡 How to Take mibeta sr 40 tablet

Strength: Immediate-release tablet, 40 mg

1Take this medicine by mouth with a glass of water.
2You may take it with or without food, but taking it with food may reduce stomach upset.
3Swallow the tablet whole; do not crush or chew.
4Take it at the same times each day to maintain consistent blood levels.
5Do not stop taking this medicine suddenly without consulting your doctor.

Dosage Information

Adult DosageThe usual starting dose for hypertension or angina is 40 mg two to three times daily, which may be increased gradually based on response. For migraine prophylaxis, 80 mg to 240 mg daily in divided doses is common. For essential tremor, 40 mg twice daily initially, up to 120 mg daily. 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 effects of this medicine. Start with lower doses and titrate slowly. Monitor heart rate and blood pressure closely.
Renal ImpairmentDose adjustment may be required in severe renal impairment. Consult your doctor for individualized dosing.
Hepatic ImpairmentDose reduction may be necessary in patients with hepatic impairment due to reduced metabolism. Consult your doctor for individualized dosing.
Maximum Daily DoseThe maximum daily dose is 640 mg, but doses above 320 mg are rarely used. Individual dosing must be determined by a qualified clinician.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
Take with meals
Reduces stomach upset and may enhance absorption.
Alcohol
Avoid
Increases dizziness and low blood pressure.

⏰ 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 mibeta sr 40 tablet

✅ Common Side Effects

Fatigue (Common (10-20%))
Usually improves with time. If persistent, consult your doctor.
Cold extremities (Common (5-10%))
Keep hands and feet warm. Report if severe or painful.
Dizziness (Common (5-10%))
Rise slowly from sitting or lying positions. Avoid driving if affected.
Slow heartbeat (Common (5-10%))
Monitor pulse. If below 50 beats per minute or symptomatic, contact your doctor.
Sleep disturbances (Uncommon (1-5%))
Take the last dose earlier in the day if advised by your doctor.

🚨 Serious Side Effects

Severe bradycardia (Rare (<0.1%))
Seek immediate medical attention if you experience fainting, extreme weakness, or a pulse below 50 beats per minute.
Bronchospasm (Rare (<0.1%))
Seek emergency care if you develop wheezing, chest tightness, or difficulty breathing.
Heart block (Rare (<0.1%))
Report symptoms like dizziness, fainting, or irregular heartbeat to your doctor immediately.
Worsening heart failure (Rare (<0.1%))
Contact your doctor if you notice swelling in legs, weight gain, or shortness of breath.
Severe hypotension (Rare (<0.1%))
Lie down and seek medical help if you feel faint or have very low blood pressure.

⚠️ Rare Side Effects

Depression
Consult your doctor if you experience persistent low mood or loss of interest.
Hallucinations
Seek immediate medical attention if you see or hear things that are not there.
Skin rash
Stop the medicine and consult your doctor if a rash develops.
Blood dyscrasias
Report unusual bruising, bleeding, or infections to your doctor promptly.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Verapamil Major
Clonidine Major
Digoxin Major
Fluoxetine Major
Ibuprofen Moderate
Insulin Moderate
Antacids Minor
Cimetidine Minor

🚨 Major Interactions

  • Verapamil and diltiazem
  • Clonidine
  • Digoxin
  • CYP2D6 inhibitors (e.g., fluoxetine, paroxetine)

⚡ Moderate Interactions

  • NSAIDs (e.g., ibuprofen)
  • Insulin and oral antidiabetics
  • Thyroid hormones

🍷 Alcohol Interaction

Alcohol should be avoided while taking this medicine because it can enhance the blood pressure-lowering effect and increase dizziness, drowsiness, and the risk of fainting.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Asthma or severe chronic obstructive pulmonary disease","Severe bradycardia (heart rate < 50 bpm)","Second- or third-degree heart block","Cardiogenic shock","Decompensated heart failure","Severe peripheral arterial disease","Hypersensitivity to propranolol"]

⚠️ Warnings & Precautions

["Do not stop this medicine abruptly; taper gradually under medical supervision.","Use with caution in patients with diabetes, as it may mask hypoglycemia symptoms.","May worsen symptoms of Raynaud's phenomenon or peripheral vascular disease.","Can cause bronchospasm in patients with respiratory disease.","May affect thyroid function tests and mask symptoms of hyperthyroidism.","Use with caution in patients with myasthenia gravis.","May cause depression or worsen mood disorders."]

🤱 Lactation Safety

Propranolol is excreted in breast milk in small amounts. It is generally considered safe during breastfeeding, but monitor the infant for bradycardia and lethargy. Consult your doctor before breastfeeding while on this medicine.

💊 Overdose Management

Overdose of this medicine can cause severe bradycardia, hypotension, heart failure, bronchospasm, and hypoglycemia. Treatment is supportive and may include atropine, glucagon, vasopressors, and cardiac pacing. Seek emergency medical attention immediately 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

General Safety

Take this medicine exactly as prescribed by your doctor, and do not change the dose or stop it suddenly on your own. If you have asthma, chronic obstructive pulmonary disease, diabetes, or heart failure, tell your doctor before starting this medicine. Check your pulse regularly, and inform your doctor if it becomes unusually slow. Avoid driving or operating heavy machinery until you know how this medicine affects you. Do not drink alcohol while taking this medicine, as it can increase dizziness and low blood pressure. Keep all follow-up appointments so your doctor can monitor your heart rate, blood pressure, and overall response to treatment.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are more sensitive to the effects of this medicine. Start with lower doses and monitor heart rate and blood pressure closely. Risk of falls due to dizziness may be increased.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before conceiving. This medicine may be continued if needed, but close monitoring is required. It may affect fetal growth and cause neonatal bradycardia.

🏥 Post-Surgery Considerations

Inform your surgeon and anesthesiologist that you are taking this medicine. It may interact with anesthetic agents and affect heart rate and blood pressure during surgery. Do not stop the medicine without medical advice.

🦷 Dental Procedures

Inform your dentist that you are taking this medicine. It may interact with local anesthetics containing adrenaline, potentially causing severe hypertension. Your dentist may adjust the anesthetic used.

💚 Lifestyle Tips for Better Results

🏃
Maintain a healthy weight to reduce strain on your heart.
🥗
Engage in regular low-impact exercise like walking or swimming.
😴
Limit salt and caffeine intake to help control blood pressure.
💧
Practice stress-reduction techniques like deep breathing or meditation.
🧘
Get adequate sleep to support heart health.
🌞
Avoid smoking and limit alcohol consumption.

🏋️ Exercise Considerations

This medicine can reduce your exercise capacity and cause fatigue. Avoid strenuous activities until you know how it affects you. Stay hydrated and monitor your heart rate during exercise.

🥗 Diet Recommendations

Include potassium-rich foods like bananas and spinach.
Reduce sodium intake.
Eat a balanced diet rich in fruits and vegetables.
Avoid excessive caffeine.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or fatigue, especially when starting treatment. Avoid driving or operating heavy machinery until you know how it affects you. It may also affect your ability to perform tasks requiring alertness.

🛑 When to Stop This Medicine

Do not stop this medicine without consulting your doctor. If you experience severe side effects like wheezing, fainting, or very slow heartbeat, seek immediate medical attention. Your doctor will decide if and how to taper the dose.

📅 Long-Term Use Effects

Long-term use of this medicine is generally safe when monitored. It may cause fatigue, cold extremities, and reduced exercise tolerance. Regular monitoring of heart rate, blood pressure, and renal function is advised. Do not stop abruptly; taper gradually under medical supervision.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Lifestyle modifications

Diet, exercise, and stress reduction can complement medicine for blood pressure and migraine.

Evidence: Well-established
Biofeedback

May help with migraine and anxiety management.

Evidence: Moderate

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific vaccine interactions are established. Continue routine vaccinations as advised by 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. Keep it in your hand luggage to avoid loss. Store at room temperature and protect from extreme heat or cold. If traveling across time zones, adjust dosing times gradually in consultation with your doctor. Check customs regulations for prescription medicines in your destination country.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 52-year-old man with high blood pressure and migraines
He was prescribed this medicine 40 mg twice daily. After two weeks, his blood pressure stabilized and migraine frequency reduced from three attacks per month to one. He initially felt tired but this improved after a few days. He was advised not to stop the medicine suddenly.
💡 Lesson: Consistent use and gradual titration improve outcomes and reduce side effects.
👤 A 35-year-old woman with essential tremor
She started this medicine 40 mg twice daily for hand tremor. Her tremor significantly reduced, allowing her to write and eat more easily. She experienced cold hands but managed with warm gloves. She was monitored for heart rate and blood pressure.
💡 Lesson: This medicine can greatly improve quality of life in essential tremor, but side effects like cold extremities are common and manageable.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine starts reducing heart rate within 1-2 hours, but full blood pressure-lowering effects may take several days to weeks.

Q: Can I stop taking this medicine if I feel better?

A: No, you should not stop this medicine suddenly. Your doctor will gradually reduce the dose to prevent rebound effects.

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 the next dose, skip it. Do not double dose.

🤔 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 mibeta sr 40 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 stopped once blood pressure is normal.
    Fact: This medicine controls blood pressure but does not cure it. Stopping suddenly can cause dangerous rebound hypertension or heart problems.
  • Myth: This medicine is safe for everyone with high blood pressure.
    Fact: It is not safe for people with asthma, severe bradycardia, or heart block.
  • Myth: This medicine can be taken without a prescription.
    Fact: This is a prescription medicine and must only be taken under medical supervision.

🔄 Alternative Options

Generic Alternatives

  • Propranolol 40 mg tablet (generic)

Brand Alternatives

  • Armitol 40mg Tablet
  • Provanol 40mg Tablet
  • Inderal 40mg Tablet
  • Ciplar 40mg Tablet
  • Propranolol 40mg Tablet

📊 Comparison with Similar Medicines

[{"medicine":"Propranolol","class":"Non-selective beta-blocker","main_use":"Hypertension, angina, migraine, tremor","note":"Crosses blood-brain barrier; lipophilic."},{"medicine":"Metoprolol","class":"Beta-1 selective blocker","main_use":"Hypertension, angina, heart failure","note":"Less bronchospasm risk."},{"medicine":"Atenolol","class":"Beta-1 selective blocker","main_use":"Hypertension, angina","note":"Renally excreted; longer duration."}]

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