naprosyn p 300mg/500mg tablet - Naproxen (300mg) + Paracetamol (500mg) medicine

Naprosyn P 300mg/500mg Tablet: Complete Medicine Guide

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🏭 RPG Life Sciences Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 28, 2026
⚠️ Hepatotoxicity Risk ⚠️ Nephrotoxicity Risk 🤰 Pregnancy Category Not established from the available information. NSAIDs are generally avoided in the third trimester due to risk of premature closure of the ductus arteriosus. Paracetamol is considered relatively safe in pregnancy when used at recommended doses. Consult your doctor before use. 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for short-term pain management.
Reviewed by
SaathiMed Expert Panel | Oct 28, 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

  • 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 bleeding or bruising

If experiencing severe symptoms, call emergency services immediately.

What is naprosyn p 300mg/500mg tablet used for?

This medicine is a combination of Naproxen 300 mg and Paracetamol 500 mg used for short-term relief of moderate to severe pain and inflammation. It is taken orally with food, usually 2-3 times daily, and should not be used for more than 7 days without medical advice.

  • Generic Name: Naproxen (300mg) + Paracetamol (500mg)
  • Manufacturer: RPG Life Sciences Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 naprosyn p 300mg/500mg tablet के बारे में (Hindi Summary)

उपयोग: यह दवा नेप्रोक्सन 300 मिलीग्राम और पैरासिटामोल 500 मिलीग्राम का संयोजन है। इसका उपयोग मध्यम से गंभीर दर्द और सूजन के अल्पकालिक उपचार के लिए किया जाता है, जैसे कि जोड़ों का दर्द, मांसपेशियों का दर्द, दांत का दर्द, मासिक धर्म में ऐंठन, और ऑस्टियोआर्थराइटिस। यह दर्द और सूजन को कम करने में मदद करता है। इसे भोजन के साथ लेना चाहिए।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में मतली, उल्टी, पेट में जलन, दस्त, कब्ज, सिरदर्द, चक्कर आना और त्वचा पर दाने शामिल हैं। गंभीर दुष्प्रभावों में पेट या आंतों में रक्तस्राव, एलर्जी की प्रतिक्रिया, दिल का दौरा, स्ट्रोक, और लीवर या किडनी की समस्या शामिल हैं। यदि आपको काला मल, खून की उल्टी, सीने में दर्द, सांस लेने में कठिनाई, या त्वचा या आंखों का पीलापन दिखे तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को हमेशा भोजन या दूध के साथ लें ताकि पेट में जलन न हो। खाली पेट न लें। इस दवा के साथ शराब न पिएं। अन्य दर्द निवारक दवाओं के साथ इसका सेवन न करें। यदि आपको पेट के अल्सर, हृदय रोग, उच्च रक्तचाप, गुर्दे या यकृत की बीमारी, अस्थमा है, या आप गर्भवती या स्तनपान करा रही हैं, तो अपने डॉक्टर को बताएं। चक्कर आने पर वाहन न चलाएं। कम से कम प्रभावी खुराक सबसे कम समय के लिए लें। 7 दिनों से अधिक उपयोग न करें।

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

💊 naprosyn p 300mg/500mg tablet Uses & Benefits

[{"condition":"Acute musculoskeletal pain","description":"Relieves pain and inflammation in conditions such as sprains, strains, and back pain.","evidence":"Well-established"},{"condition":"Dental pain","description":"Provides relief from moderate to severe dental pain, including post-extraction pain.","evidence":"Well-established"},{"condition":"Dysmenorrhea","description":"Reduces menstrual cramps and associated pain.","evidence":"Well-established"},{"condition":"Osteoarthritis","description":"Symptomatic relief of pain and stiffness in osteoarthritis.","evidence":"Well-established"},{"condition":"Rheumatoid arthritis","description":"Reduces pain and inflammation in rheumatoid arthritis.","evidence":"Well-established"},{"condition":"Post-operative pain","description":"Management of mild to moderate post-operative pain.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Migraine","description":"Sometimes used for acute migraine attacks, but not a first-line treatment.","evidence":"Limited"},{"condition":"Gout","description":"May be used for acute gout attacks, but other NSAIDs are preferred.","evidence":"Limited"}]

Primary treatment for: Pain and inflammation

Also treats: Osteoarthritis, Rheumatoid arthritis, Dysmenorrhea, Dental pain, Musculoskeletal pain

📋 Drug Information

Generic Name(s)Naproxen (300mg) + Paracetamol (500mg)
Brand Namenaprosyn p 300mg/500mg tablet
ManufacturerRPG Life Sciences Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassPAIN ANALGESICS
Action Class
Route of AdministrationOral
StorageStore at room temperature (15-30°C) in a dry place, away from 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
Always take this medicine with food or milk to reduce the risk of stomach upset and gastrointestinal bleeding.
2
Do not exceed the recommended dose of 3 tablets in 24 hours, as this can lead to liver damage from paracetamol.
3
Avoid alcohol completely while taking this medicine to prevent liver damage and gastrointestinal bleeding.
4
Inform your doctor if you are taking blood thinners, blood pressure medicines, or other painkillers before starting this medicine.
5
Do not use this medicine for more than 7 days without consulting your doctor, as prolonged use can increase the risk of kidney and heart problems.
6
If you experience black stools, vomiting blood, or severe abdominal pain, stop the medicine and seek immediate medical attention.
7
Stay well hydrated throughout the day to help your kidneys process the medicine effectively.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Chronic joint pain
This medicine is commonly prescribed for this.
Likely Use
❌
Fever
This medicine is not a primary fever reducer.
Not Primary
✅
Dental pain
This medicine is effective for dental pain.
Likely Use
✅
Menstrual cramps
This medicine is commonly used for dysmenorrhea.
Likely Use

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionNaproxen is rapidly and completely absorbed from the gastrointestinal tract after oral administration. Paracetamol is also rapidly absorbed from the gastrointestinal tract. Food may delay the absorption of naproxen but does not significantly affect the extent of absorption.
DistributionNaproxen is highly bound to plasma proteins and has a volume of distribution of approximately 0.16 L/kg. Paracetamol is distributed throughout most body tissues, with a volume of distribution of about 0.95 L/kg.
Protein BindingNaproxen is more than 99% bound to plasma proteins, primarily albumin. Paracetamol is only about 10-25% bound to plasma proteins.
MetabolismNaproxen is extensively metabolized in the liver, primarily by conjugation with glucuronic acid and to a lesser extent by oxidation via cytochrome P450 enzymes (CYP2C9, CYP1A2). Paracetamol is metabolized in the liver, primarily by glucuronidation and sulfation; a small fraction is oxidized by CYP2E1 to a toxic metabolite, N-acetyl-p-benzoquinone imine (NAPQI), which is detoxified by glutathione.
Half-LifeThe elimination half-life of naproxen is approximately 12-17 hours. The elimination half-life of paracetamol is about 2-3 hours.
ExcretionNaproxen and its metabolites are excreted primarily in the urine (95%), with a small amount in feces. Paracetamol metabolites are excreted in the urine.
BioavailabilityThe oral bioavailability of naproxen is approximately 95%. The oral bioavailability of paracetamol is about 80-90%.
Onset of ActionNaproxen: onset of analgesic effect is within 1 hour. Paracetamol: onset of analgesic effect is within 30-60 minutes.
Peak Plasma TimeNaproxen: peak plasma concentration occurs in 2-4 hours. Paracetamol: peak plasma concentration occurs in 0.5-2 hours.
Duration of ActionNaproxen: analgesic effect lasts 8-12 hours. Paracetamol: analgesic effect lasts 4-6 hours. The combination may provide relief for up to 8 hours.

How It Works

This medicine combines two active ingredients with complementary mechanisms. Naproxen is a non-selective non-steroidal anti-inflammatory drug (NSAID) that reversibly inhibits the cyclooxygenase (COX) enzymes, COX-1 and COX-2. This inhibition reduces the synthesis of prostaglandins, which are mediators of inflammation, pain, and fever. Paracetamol (acetaminophen) has analgesic and antipyretic properties, but its mechanism of action is not fully understood. It is believed to act primarily in the central nervous system by inhibiting prostaglandin synthesis, possibly through interaction with the COX-3 variant or by activating descending serotonergic pathways. The combination provides enhanced pain relief through different pathways.

Mechanism Steps

1
Inhibition of cyclooxygenase enzymes: Naproxen reversibly binds to and inhibits the COX-1 and COX-2 enzymes, blocking the conversion of arachidonic acid to prostaglandin H2.
2
Reduced prostaglandin synthesis: This inhibition leads to decreased production of prostaglandins, prostacyclin, and thromboxane, which are key mediators of inflammation, pain, and fever.
3
Central analgesic action of paracetamol: Paracetamol acts primarily in the central nervous system, where it inhibits prostaglandin synthesis and may activate descending inhibitory pathways, reducing pain perception.
4
Combined analgesic effect: The combination of peripheral anti-inflammatory action from naproxen and central analgesic action from paracetamol results in enhanced pain relief.

💡 How to Take naprosyn p 300mg/500mg tablet

Strength: Tablet containing Naproxen 300 mg and Paracetamol 500 mg.

1Take this medicine exactly as prescribed by your doctor.
2Swallow the tablet whole with a glass of water.
3Take it with food or milk to reduce stomach upset.
4Do not crush, chew, or break the tablet.
5Do not take more than the recommended dose.
6If you miss a dose, follow the missed dose instructions.
7Do not take it for longer than prescribed without consulting your doctor.

Dosage Information

Adult DosageThe usual adult dose is one tablet (Naproxen 300 mg + Paracetamol 500 mg) taken orally two to three times daily, preferably with food or milk. The maximum daily dose should not exceed 3 tablets in 24 hours. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. Do not exceed the recommended dose. Use the lowest effective dose for the shortest duration.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients (above 65 years) are at increased risk of gastrointestinal bleeding, kidney impairment, and cardiovascular events. Use the lowest effective dose for the shortest duration. Monitor kidney and liver function regularly.
Renal ImpairmentUse with caution in patients with mild to moderate kidney impairment. Avoid in severe kidney impairment (eGFR <30 mL/min). Dose adjustment may be required. Consult your doctor.
Hepatic ImpairmentUse with caution in patients with mild to moderate liver impairment. Avoid in severe liver impairment. Dose adjustment may be required. Consult your doctor.
Maximum Daily DoseMaximum daily dose: Naproxen 900 mg and Paracetamol 1500 mg (3 tablets) in 24 hours. Do not exceed this dose.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
Take with meals
Reduces stomach upset.
Grapefruit
Avoid
May increase drug levels.
High-fat meals
May delay absorption
Can delay the onset of pain relief.

⏰ 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 naprosyn p 300mg/500mg tablet

✅ Common Side Effects

Nausea (Common (5-10%))
Take with food or milk. If persistent, consult your doctor.
Heartburn (Common (5-10%))
Take with food. Avoid lying down immediately after taking. Consult doctor if severe.
Headache (Common (5-10%))
Usually resolves on its own. Stay hydrated. Consult doctor if persistent.
Dizziness (Common (5-10%))
Avoid driving or operating machinery until you know how it affects you.
Drowsiness (Common (5-10%))
Avoid alcohol and activities requiring alertness.

🚨 Serious Side Effects

Gastrointestinal bleeding (Rare (<0.1%))
Seek immediate medical attention if you notice black, tarry stools, vomiting blood, or severe abdominal pain.
Allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek emergency help if you experience rash, itching, swelling of face, lips, tongue, or throat, or difficulty breathing.
Cardiovascular events (heart attack, stroke) (Rare (<0.1%))
Seek immediate medical attention if you experience chest pain, shortness of breath, weakness on one side, or slurred speech.
Liver damage (paracetamol overdose) (Rare (<0.1%))
Seek immediate medical attention if you experience yellowing of skin or eyes, dark urine, or severe fatigue.
Kidney problems (Rare (<0.1%))
Seek medical attention if you notice decreased urine output, swelling in ankles or feet, or blood in urine.

⚠️ Rare Side Effects

Stevens-Johnson syndrome
Seek emergency care if you develop a severe rash with blistering and peeling skin.
Aseptic meningitis
Seek immediate medical attention if you experience severe headache, stiff neck, fever, and sensitivity to light.
Pancreatitis
Seek immediate medical attention if you experience severe upper abdominal pain radiating to the back.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Major
Aspirin Major
Ibuprofen Major
ACE inhibitors Major
Lithium Major
Methotrexate Major
SSRIs Moderate
Corticosteroids Moderate
Diuretics Moderate
Alcohol Moderate

🚨 Major Interactions

  • Warfarin
  • Other NSAIDs (e.g., aspirin, ibuprofen)
  • Corticosteroids
  • ACE inhibitors and ARBs
  • Diuretics
  • Lithium
  • Methotrexate

⚡ Moderate Interactions

  • SSRIs
  • Antacids
  • Cholestyramine
  • Probenecid

🍷 Alcohol Interaction

Avoid alcohol while taking this medicine. Alcohol increases the risk of gastrointestinal bleeding, ulcers, and liver damage, especially when combined with paracetamol and NSAIDs.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to naproxen, paracetamol, or any component of the formulation.","History of asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs.","Active peptic ulcer disease or history of recurrent ulcers.","Severe heart failure.","Severe kidney impairment (eGFR

⚠️ Warnings & Precautions

["Cardiovascular risk: NSAIDs may increase the risk of serious cardiovascular thrombotic events. Use with caution in patients with cardiovascular risk factors.","Gastrointestinal risk: NSAIDs can cause gastrointestinal bleeding, ulceration, and perforation, which can be fatal. Use with caution in the elderly and those with a history of ulcers.","Kidney risk: NSAIDs can cause kidney injury, especially in patients with dehydration or pre-existing kidney disease.","Liver risk: Paracetamol can cause hepatotoxicity if taken in excess or with alcohol.","Skin reactions: Serious skin reactions such as Stevens-Johnson syndrome and toxic epidermal necrolysis have been reported with NSAIDs and paracetamol.","Use in the elderly: Increased risk of adverse effects; use lowest effective dose for shortest duration.","Use in pregnancy: Avoid in the third trimester; consult doctor before use.","Do not exceed the recommended dose of paracetamol from all sources."]

🤱 Lactation Safety

Naproxen is excreted in breast milk in small amounts. Paracetamol is also excreted in breast milk in small amounts. The combination is generally considered compatible with breastfeeding, but consult your doctor before use.

💊 Overdose Management

Overdose of this medicine can cause severe liver damage due to paracetamol and gastrointestinal bleeding, kidney failure, and central nervous system effects due to naproxen. Seek immediate medical attention. Treatment includes gastric lavage if within 1-2 hours, administration of activated charcoal, and acetylcysteine for paracetamol toxicity. Monitor liver and kidney function, and provide supportive care.

⏰ 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 dose to catch up.

Additional Safety Advice

General Safety

Always take this medicine with food or milk to reduce the risk of stomach upset. Do not take it on an empty stomach. Avoid alcohol while taking this medicine as it can increase the risk of gastrointestinal bleeding and liver damage. Do not take other medications containing paracetamol or other NSAIDs without consulting your doctor, as this can lead to overdose or increased side effects. Inform your doctor if you have a history of stomach ulcers, heart disease, high blood pressure, kidney or liver disease, asthma, or if you are pregnant or breastfeeding. Do not drive or operate heavy machinery if you experience dizziness or drowsiness. Take the lowest effective dose for the shortest possible duration. Do not use this medicine for more than 7 days without medical advice. Keep out of reach of children.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are at increased risk of gastrointestinal bleeding, kidney impairment, and cardiovascular events. Use the lowest effective dose for the shortest duration and monitor kidney and liver function regularly.

🤰 Pregnancy Planning (TTC)

Consult your doctor before taking this medicine if you are planning pregnancy. NSAIDs may affect ovulation and are generally avoided in the third trimester.

🏥 Post-Surgery Considerations

This medicine may be used for post-operative pain, but it can increase the risk of bleeding. Consult your surgeon before taking it after surgery.

🦷 Dental Procedures

This medicine can be used for dental pain, but it may increase the risk of bleeding during dental procedures. Inform your dentist if you are taking this medicine.

💚 Lifestyle Tips for Better Results

🏃
Maintain a healthy weight to reduce joint stress.
🥗
Regular low-impact exercise like swimming.
😴
Practice good posture.
💧
Include anti-inflammatory foods in your diet.
🧘
Get adequate sleep.
🌞
Stay hydrated.

🏋️ Exercise Considerations

Avoid strenuous exercise or activities that may increase pain while taking this medicine. Gentle stretching and low-impact exercises are recommended. Consult your doctor before starting any exercise program.

🥗 Diet Recommendations

Include omega-3 rich foods
Reduce processed food intake
Stay well hydrated
Avoid alcohol
Eat a balanced diet rich in fruits and vegetables

💼 Impact on Daily Work & Life

This medicine may cause dizziness or drowsiness in some people. Avoid driving or operating heavy machinery until you know how it affects you. It is advisable to take it with food to avoid stomach upset during work hours.

🛑 When to Stop This Medicine

Stop taking this medicine and consult your doctor if you experience severe side effects such as gastrointestinal bleeding, allergic reactions, or if your pain persists beyond 7 days. Do not stop abruptly if you have been taking it for a long time without consulting your doctor.

📅 Long-Term Use Effects

Long-term use of this medicine can increase the risk of gastrointestinal bleeding, kidney impairment, liver damage, and cardiovascular events. Regular monitoring of kidney and liver function is recommended. Use the lowest effective dose for the shortest duration.

🌿 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 and cold therapy

May help reduce pain and inflammation.

Evidence: Limited
Acupuncture

May provide pain relief for some individuals.

Evidence: Limited

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific interactions with vaccines are known. However, consult your doctor before vaccination if you are taking 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 direct sunlight. If traveling across time zones, adjust dosing times gradually. Check customs regulations for carrying prescription medicines. Do not expose to extreme temperatures.

💰 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 severe menstrual cramps
Used this medicine for dysmenorrhea and experienced relief within an hour. She was advised to take it with food and not to exceed the recommended dose.
💡 Lesson: Taking the medicine at the first sign of cramps provides better relief.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine usually starts relieving pain within 1 hour after taking it with food.

Q: Can I take it on an empty stomach?

A: No, it should be taken with food or milk to reduce the risk of stomach upset.

Q: Is it safe to take with other painkillers?

A: No, do not take other painkillers containing paracetamol or NSAIDs without consulting your doctor.

Q: How long can I take this medicine?

A: It is intended for short-term use only. Do not use for more than 7 days without medical advice.

🤔 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 can be taken for any type of pain.
    Fact: This medicine is intended for specific types of pain and should only be used as prescribed.
  • Myth: It is safe to take this medicine with other painkillers.
    Fact: Taking multiple painkillers can increase the risk of side effects, especially liver and kidney damage.
  • Myth: This medicine is not addictive.
    Fact: This medicine is not habit-forming, but it should be used only for the prescribed duration.

🔄 Alternative Options

Generic Alternatives

  • Naproxen 300 mg + Paracetamol 500 mg tablet (various manufacturers)

Brand Alternatives

  • Naprosyn P 300mg/500mg tablet

📊 Comparison with Similar Medicines

[{"medicine":"Naproxen + Paracetamol","composition":"Naproxen 300 mg + Paracetamol 500 mg","onset":"1 hour","duration":"8-12 hours","frequency":"2-3 times daily"},{"medicine":"Ibuprofen + Paracetamol","composition":"Ibuprofen 400 mg + Paracetamol 500 mg","onset":"30-60 minutes","duration":"4-6 hours","frequency":"3-4 times daily"},{"medicine":"Diclofenac + Paracetamol","composition":"Diclofenac 50 mg + Paracetamol 500 mg","onset":"30-60 minutes","duration":"4-6 hours","frequency":"2-3 times daily"}]

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