micropyrin tablet - Aspirin (350mg) + Caffeine (20mg) medicine

Micropyrin Tablet: Comprehensive Guide to Uses, Side Effects, and Safety

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🏭 Abbott 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 21, 2026
⚠️ Hepatotoxicity Risk ⚠️ Nephrotoxicity Risk 🤰 Pregnancy Category Not established from the available information. Aspirin should be used during pregnancy only if clearly needed and under medical supervision. Avoid in the third trimester due to risk of bleeding and premature closure of ductus arteriosus. 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for aspirin and caffeine combination in pain relief.
Reviewed by
SaathiMed Expert Panel | Sep 21, 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
  • Unusual bruising or bleeding

If experiencing severe symptoms, call emergency services immediately.

What is micropyrin tablet used for?

This medicine is a combination of aspirin and caffeine used for short-term relief of mild to moderate pain and fever. It works by reducing pain and inflammation and enhancing pain relief through caffeine.

  • Generic Name: Aspirin (350mg) + Caffeine (20mg)
  • Manufacturer: Abbott
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 micropyrin tablet के बारे में (Hindi Summary)

उपयोग: यह दवा एस्पिरिन और कैफीन का संयोजन है, जिसका उपयोग हल्के से मध्यम दर्द और बुखार से राहत के लिए किया जाता है। यह सिरदर्द, दांत दर्द, मांसपेशियों में दर्द, मासिक धर्म में ऐंठन और बुखार में प्रभावी है। यह दर्द को कम करने और सूजन को कम करने में मदद करती है।

साइड इफेक्ट्स: आम दुष्प्रभावों में पेट में जलन, अपच, मतली, सिरदर्द और बेचैनी शामिल हैं। गंभीर दुष्प्रभावों में पेट या आंतों में रक्तस्राव, एलर्जी प्रतिक्रिया, और गुर्दे या यकृत की समस्याएं शामिल हो सकती हैं। यदि आपको काला मल, खून की उल्टी, या गंभीर पेट दर्द हो, तो तुरंत डॉक्टर से मिलें।

सुरक्षा सलाह: इस दवा को भोजन के साथ या एक गिलास पानी के साथ लें। शराब का सेवन न करें क्योंकि इससे पेट में रक्तस्राव का खतरा बढ़ सकता है। अन्य दर्द निवारक दवाओं या रक्त पतला करने वाली दवाओं के साथ इसका सेवन न करें। यदि आप गर्भवती हैं या स्तनपान करा रही हैं, तो डॉक्टर से सलाह लें। बच्चों को यह दवा न दें।

💡 Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

💊 micropyrin tablet Uses & Benefits

[{"condition":"Mild to moderate pain","description":"Provides relief from headache, toothache, muscle ache, back pain, and menstrual cramps.","evidence":"Well-established"},{"condition":"Fever","description":"Helps lower body temperature in adults with fever due to various causes.","evidence":"Well-established"},{"condition":"Inflammation","description":"Reduces inflammation in conditions like arthritis, though not as a first-line treatment.","evidence":"Established"},{"condition":"Cardiovascular protection","description":"Low-dose aspirin is used for secondary prevention of heart attack and stroke, but this combination is not typically used for that purpose.","evidence":"Well-established for aspirin alone"}]

Off-label uses: [{"condition":"Migraine prophylaxis","description":"Sometimes prescribed off-label for preventing migraines, but evidence is limited.","evidence":"Limited"},{"condition":"Preeclampsia prevention","description":"Low-dose aspirin may be used off-label in pregnancy to reduce preeclampsia risk, but this combination is not standard.","evidence":"Emerging"}]

Primary treatment for: Pain and fever

Also treats: Headache, Toothache, Muscle ache, Menstrual cramps, Arthritis

📋 Drug Information

Generic Name(s)Aspirin (350mg) + Caffeine (20mg)
Brand Namemicropyrin tablet
ManufacturerAbbott
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassPAIN ANALGESICS
Action Class
Route of AdministrationOral
StorageStore at room temperature between 15-30°C (59-86°F). Keep away from moisture and direct sunlight. 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 with food or milk to reduce stomach upset.
2
Avoid alcohol while taking this medicine to prevent stomach bleeding.
3
Do not take more than 4 tablets in 24 hours.
4
Consult your doctor if pain persists beyond 10 days or fever beyond 3 days.
5
Inform your doctor if you have a history of ulcers, bleeding, or kidney disease.
6
Do not take other NSAIDs or blood thinners without medical advice.
7
Keep this medicine out of reach of children.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Headache
This medicine is commonly used for headache relief.
Likely Use
Fever
This medicine helps reduce fever.
Likely Use
Muscle pain
This medicine provides relief from muscle aches.
Likely Use
Chest pain
This medicine is not for chest pain; seek emergency care.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionAspirin is rapidly absorbed from the stomach and small intestine. Caffeine is also rapidly absorbed from the gastrointestinal tract. Food may delay absorption but does not reduce the extent.
DistributionAspirin and its metabolite salicylate are widely distributed in body tissues and fluids, including synovial fluid, breast milk, and across the placenta. Caffeine distributes throughout body water and crosses the blood-brain barrier and placenta.
Protein BindingAspirin is about 80-90% bound to plasma proteins, mainly albumin. Salicylate is also highly protein-bound. Caffeine is approximately 25-36% bound to plasma proteins.
MetabolismAspirin is hydrolyzed to salicylic acid in the liver, intestines, and blood. Salicylate is further metabolized in the liver by conjugation with glycine and glucuronic acid. Caffeine is metabolized in the liver by cytochrome P450 enzymes, primarily CYP1A2, to paraxanthine, theobromine, and theophylline.
Half-LifeAspirin has a half-life of 15-20 minutes. Salicylate has a half-life of 2-3 hours at low doses, but it can be longer at high doses. Caffeine has a half-life of about 3-5 hours in adults.
ExcretionSalicylate and its metabolites are excreted primarily by the kidneys. Caffeine metabolites are also excreted in urine. Urinary excretion of salicylate is increased by alkaline urine.
BioavailabilityAspirin bioavailability is approximately 50-75% due to first-pass metabolism. Caffeine bioavailability is nearly 100%.
Onset of ActionPain relief typically begins within 30 minutes after oral administration.
Peak Plasma TimePeak plasma levels of aspirin are reached in 1-2 hours. Caffeine peaks in about 30-60 minutes.
Duration of ActionPain relief lasts for about 4-6 hours.

How It Works

This medicine combines two active ingredients. Aspirin irreversibly inhibits cyclooxygenase-1 and cyclooxygenase-2 enzymes, blocking the conversion of arachidonic acid to prostaglandins and thromboxane A2. This leads to reduced pain, fever, inflammation, and platelet aggregation. Caffeine acts as an adenosine receptor antagonist, which constricts cerebral blood vessels and enhances the analgesic effect of aspirin by increasing its absorption and modulating central pain perception.

Mechanism Steps

1
Aspirin absorption: Aspirin is absorbed from the stomach and upper intestine and rapidly deacetylated to salicylate.
2
COX inhibition: Aspirin irreversibly acetylates COX-1 and COX-2 enzymes, blocking prostaglandin and thromboxane synthesis.
3
Caffeine action: Caffeine blocks adenosine receptors, leading to vasoconstriction and enhanced pain relief.
4
Synergistic effect: Caffeine increases aspirin's bioavailability and central analgesic effect, providing faster and stronger relief.

💡 How to Take micropyrin tablet

Strength: Each immediate-release tablet contains aspirin 350 mg and caffeine 20 mg.

1Take the tablet orally with a full glass of water.
2Take with food or milk to reduce stomach upset.
3Swallow the tablet whole; do not crush or chew.
4Do not lie down immediately after taking.
5Follow the prescribed dose and duration.

Dosage Information

Adult DosageThe usual adult dose is one tablet taken orally every 4 to 6 hours as needed for pain or fever, not exceeding 4 tablets in 24 hours. The dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. Do not exceed the recommended dose or duration without medical advice.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician. This medicine is not recommended for children or teenagers due to the risk of Reye's syndrome.
Elderly DosageElderly patients may be more sensitive to the effects of this medicine, especially gastrointestinal bleeding and kidney impairment. Use the lowest effective dose for the shortest duration. Consult a doctor for appropriate dosing.
Renal ImpairmentUse with caution in patients with kidney impairment. Dose adjustment may be needed. Consult a doctor for guidance.
Hepatic ImpairmentUse with caution in patients with liver impairment. Dose adjustment may be needed. Consult a doctor for guidance.
Maximum Daily DoseMaximum 4 tablets in 24 hours for adults. Do not exceed the recommended dose.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
Take with meals
Reduces stomach upset.
Grapefruit
Avoid
May increase drug levels.
Alcohol
Avoid
Increases risk of gastrointestinal bleeding.

⏰ 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 micropyrin tablet

✅ Common Side Effects

Stomach irritation (Common (5-10%))
Take with food or milk. If it persists, consult your doctor.
Heartburn (Common (5-10%))
Avoid lying down immediately after taking. Use antacids if needed, but consult doctor.
Nausea (Common (5-10%))
Take with a light snack. If nausea continues, talk to your doctor.
Headache (Uncommon (1-5%))
Usually resolves. If severe or persistent, seek medical advice.
Insomnia (Uncommon (1-5%))
Avoid taking close to bedtime. Reduce caffeine intake from other sources.

🚨 Serious Side Effects

Gastrointestinal bleeding (Rare (<0.1%))
Seek immediate medical attention if you notice black stools, vomiting blood, or severe abdominal pain.
Allergic reaction (Rare (<0.1%))
Stop the medicine and get emergency help if you experience swelling of face, lips, throat, or difficulty breathing.
Asthma exacerbation (Rare (<0.1%))
If you have aspirin-sensitive asthma, avoid this medicine. Seek medical help if breathing worsens.
Kidney impairment (Rare (<0.1%))
Report decreased urine output or swelling. Regular monitoring may be needed with long-term use.
Liver toxicity (Rare (<0.1%))
Watch for yellowing of eyes or skin, dark urine, or severe fatigue. Consult doctor immediately.

⚠️ Rare Side Effects

Reye's syndrome
Never give to children or teenagers with viral infections. Seek emergency care if vomiting, confusion, or seizures occur.
Severe skin reactions
Stop medicine and seek immediate medical help if rash, blisters, or peeling skin develop.
Blood disorders
Report unusual bruising, bleeding, or infections. Blood tests may be needed.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Major
Methotrexate Major
Other NSAIDs Major
Corticosteroids Major
ACE inhibitors Moderate
Diuretics Moderate
Oral hypoglycemics Moderate
Probenecid Moderate
Antacids Minor
Caffeine Minor

🚨 Major Interactions

  • Warfarin
  • Methotrexate
  • Other NSAIDs
  • Corticosteroids

⚡ Moderate Interactions

  • ACE inhibitors
  • Diuretics
  • Oral hypoglycemics
  • Probenecid

🍷 Alcohol Interaction

Avoid alcohol while taking this medicine. Alcohol increases the risk of stomach bleeding, ulcers, and liver problems. It can also worsen the side effects of caffeine such as anxiety and insomnia.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Active peptic ulcer or gastrointestinal bleeding","History of aspirin-induced asthma or allergic reaction to NSAIDs","Severe kidney or liver disease","Bleeding disorders such as hemophilia","Children or teenagers with viral infections (risk of Reye's syndrome)","Third trimester of pregnancy","Concurrent use of anticoagulants like warfarin"]

⚠️ Warnings & Precautions

["Take with food to reduce stomach irritation.","Avoid alcohol while taking this medicine.","Do not use for more than 10 days for pain or 3 days for fever without medical advice.","Inform your doctor if you have a history of ulcers, bleeding, or kidney disease.","Do not take other NSAIDs or blood thinners without consulting your doctor.","Stop use and seek medical help if you experience signs of bleeding or allergic reaction.","Keep out of reach of children."]

🤱 Lactation Safety

Aspirin and caffeine are excreted in breast milk. Use with caution during breastfeeding. Consult your doctor before use.

💊 Overdose Management

Overdose of this medicine can cause symptoms such as ringing in the ears, rapid breathing, nausea, vomiting, confusion, and seizures. If you suspect an overdose, seek emergency medical attention immediately. Treatment may include activated charcoal, gastric lavage, and supportive care. Do not induce vomiting unless instructed by a healthcare professional.

⏰ 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 with food or a full glass of water to reduce stomach upset. Do not crush or chew the tablet unless your doctor advises otherwise. Avoid alcohol while taking this medicine because it increases the risk of stomach bleeding. Do not take other pain relievers, blood thinners, or steroids without consulting your doctor. Inform your doctor if you have a history of ulcers, bleeding disorders, asthma, kidney or liver disease, or if you are pregnant or breastfeeding. Do not exceed the recommended dose or duration of treatment. Keep this medicine out of reach of children. Store it at room temperature, away from moisture and direct sunlight. If you miss a dose, take it as soon as you remember, but skip it if it is almost time for the next dose. Do not double the dose.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are at higher risk of gastrointestinal bleeding, kidney impairment, and drug interactions. Use the lowest effective dose and monitor closely.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before taking this medicine. Aspirin may affect ovulation and early pregnancy. Use only if prescribed.

🏥 Post-Surgery Considerations

Avoid this medicine after surgery unless advised by your surgeon, as it can increase bleeding risk. Inform your surgeon about all medications you are taking.

🦷 Dental Procedures

Inform your dentist if you are taking this medicine, as it may increase bleeding during dental procedures. You may need to stop it temporarily before surgery.

💚 Lifestyle Tips for Better Results

🏃
Maintain a healthy weight to reduce stress on joints.
🥗
Regular low-impact exercise like swimming or walking.
😴
Practice good posture to prevent muscle pain.
💧
Include anti-inflammatory foods in your diet.
🧘
Get adequate sleep to aid recovery.
🌞
Stay hydrated throughout the day.

🏋️ Exercise Considerations

Avoid strenuous exercise if you experience dizziness or fatigue. Listen to your body and rest if needed. Consult your doctor before starting any new exercise regimen.

🥗 Diet Recommendations

Include omega-3 rich foods like fish and flaxseeds.
Reduce processed food intake.
Stay well hydrated.
Eat plenty of fruits and vegetables.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or drowsiness in some people. Avoid driving or operating heavy machinery if you feel affected. It is generally safe for office work, but take breaks if you experience stomach upset.

🛑 When to Stop This Medicine

Stop taking this medicine and consult your doctor if you experience severe side effects such as bleeding, allergic reactions, or persistent stomach pain. Do not stop abruptly if you are taking it for a chronic condition without medical advice.

📅 Long-Term Use Effects

Long-term use of this medicine can increase the risk of gastrointestinal bleeding, kidney impairment, and liver toxicity. Regular monitoring of blood counts, kidney and liver function is advised. Do not use for prolonged periods without medical supervision.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Physical therapy

Can complement medicine for chronic pain.

Evidence: Well-established
Heat or cold therapy

May help relieve localized pain and inflammation.

Evidence: Established
Relaxation techniques

Can help manage stress-related pain.

Evidence: Emerging

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific interactions with vaccines are established. However, consult your doctor before vaccination if you are 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

Carry this medicine in its original packaging with a copy of your prescription. Store at room temperature and protect from moisture. When traveling across time zones, continue your regular dosing schedule as advised by your doctor. Check customs regulations for carrying medicines. Keep a list of your medications with you.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 45-year-old office worker with chronic knee pain
Started this medicine as prescribed for osteoarthritis. Within 2 weeks noticed significant improvement in morning stiffness. Emphasized taking with food to prevent stomach upset.
💡 Lesson: Consistency with prescribed dose and taking with food improves both efficacy and tolerability.
👤 A 30-year-old woman with menstrual cramps
Used this medicine for menstrual cramps and found relief within 30 minutes. She was advised to take it with food and avoid alcohol. She reported mild nausea initially, which subsided after taking it with a snack.
💡 Lesson: Taking the medicine with food can reduce gastrointestinal side effects and improve compliance.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine usually starts relieving pain within 30 minutes after taking it orally.

Q: Can I take it on an empty stomach?

A: It is best taken with food or milk to reduce stomach irritation.

Q: Is it safe during pregnancy?

A: Consult your doctor before use. It is generally avoided in the third trimester.

Q: Can I take it with other painkillers?

A: Do not take other NSAIDs or blood thinners without consulting your doctor.

🤔 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?

🛑 Myths vs. Facts

  • Myth: This medicine is safe for everyone.
    Fact: It is not safe for people with ulcers, bleeding disorders, or aspirin-sensitive asthma.
  • Myth: You can take this medicine on an empty stomach.
    Fact: It should be taken with food to reduce stomach irritation.
  • Myth: This medicine can be given to children.
    Fact: It should not be given to children or teenagers due to the risk of Reye's syndrome.

🔄 Alternative Options

Generic Alternatives

  • Aspirin 350 mg + Caffeine 20 mg tablet

Brand Alternatives

  • Micropyrin Tablet

📊 Comparison with Similar Medicines

[{"medicine":"This medicine","composition":"Aspirin 350 mg + Caffeine 20 mg","uses":"Pain, fever","notes":"Immediate release, oral"},{"medicine":"Aspirin alone","composition":"Aspirin 325 mg","uses":"Pain, fever, cardiovascular protection","notes":"No caffeine"},{"medicine":"Paracetamol","composition":"Paracetamol 500 mg","uses":"Pain, fever","notes":"Different mechanism, safer for stomach"}]

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