distamine 500mg tablet - Capecitabine (500mg) medicine

Xeloda 500mg Tablet: Comprehensive Guide to Uses, Side Effects, and Safety

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🏭 Neon Laboratories Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 23, 2026
⚠️ Hepatotoxicity Risk ⚠️ Nephrotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established
Reviewed by
SaathiMed Expert Panel | Sep 23, 2026

When to Call Your Doctor IMMEDIATELY

  • Severe diarrhoea (more than 4-6 stools per day) or blood in stool
  • Chest pain, shortness of breath, or irregular heartbeat
  • Severe skin blistering, peeling, or sores in the mouth or eyes
  • Fever, chills, or signs of infection
  • Unusual bruising or bleeding
  • Yellowing of skin or eyes, dark urine, or severe abdominal pain
  • Decreased urine output or swelling in legs

If experiencing severe symptoms, call emergency services immediately.

What is distamine 500mg tablet used for?

This medicine is an oral chemotherapy drug containing capecitabine 500 mg, used to treat colorectal, breast, and gastric cancers. It works by converting to 5-fluorouracil in the body, which blocks cancer cell growth. It is taken twice daily after meals for 14 days followed by a 7-day rest.

  • Generic Name: Capecitabine (500mg)
  • Manufacturer: Neon Laboratories Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 distamine 500mg tablet के बारे में (Hindi Summary)

उपयोग: यह दवा कैंसर के इलाज के लिए इस्तेमाल की जाने वाली एक मौखिक कीमोथेरेपी दवा है। इसमें कैपेसिटाबिन 500 मिलीग्राम सक्रिय तत्व के रूप में होता है। यह कोलोरेक्टल कैंसर, स्तन कैंसर और पेट के कैंसर के इलाज में उपयोग की जाती है। यह शरीर में 5-फ्लोरोयूरासिल में बदल जाती है, जो कैंसर कोशिकाओं की वृद्धि को रोकता है। इस दवा को भोजन के 30 मिनट बाद दिन में दो बार लिया जाता है, 14 दिनों तक लगातार और फिर 7 दिन का आराम।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में दस्त, मतली, उल्टी, मुँह के छाले, पेट दर्द, थकान, और हाथ-पैर की त्वचा पर लालिमा और सूजन (हैंड-फुट सिंड्रोम) शामिल हैं। कुछ गंभीर दुष्प्रभाव भी हो सकते हैं जैसे गंभीर दस्त, दिल की समस्याएं, गंभीर त्वचा प्रतिक्रियाएं, और रक्त कोशिकाओं की कमी। कोई भी नया या बिगड़ता लक्षण तुरंत डॉक्टर को बताएं।

सुरक्षा सलाह: इस दवा को हमेशा डॉक्टर के बताए अनुसार ही लें। इसे भोजन के 30 मिनट बाद पानी के साथ पूरा निगलें, चबाएं नहीं। खुराक भूल जाने पर दोबारा न लें। उपचार के दौरान और बाद में गर्भनिरोधक उपाय करें। स्तनपान न कराएं। पर्याप्त पानी पिएं। धूप से बचें और सनस्क्रीन का उपयोग करें। नियमित रक्त जांच कराएं।

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

💊 distamine 500mg tablet Uses & Benefits

[{"condition":"Colorectal cancer","description":"Used as adjuvant therapy after surgery for stage III colon cancer, or for metastatic colorectal cancer, often in combination with other chemotherapy agents.","evidence":"Well-established"},{"condition":"Breast cancer","description":"Used for metastatic breast cancer, often in combination with other drugs, and sometimes as adjuvant therapy for early breast cancer.","evidence":"Well-established"},{"condition":"Gastric cancer","description":"Used in combination with other chemotherapy for advanced gastric cancer.","evidence":"Well-established"},{"condition":"Esophageal cancer","description":"Sometimes used in combination regimens for esophageal cancer.","evidence":"Emerging"}]

Off-label uses: [{"condition":"Pancreatic cancer","description":"Occasionally used in combination regimens for advanced pancreatic cancer, though not a standard first-line option.","evidence":"Limited"},{"condition":"Biliary tract cancer","description":"Sometimes used in combination therapy for advanced biliary tract cancers.","evidence":"Limited"}]

Primary treatment for: Colorectal cancer

Also treats: Breast cancer, Gastric cancer, Esophageal cancer

📋 Drug Information

Generic Name(s)Capecitabine (500mg)
Brand Namedistamine 500mg tablet
ManufacturerNeon Laboratories Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI NEOPLASTICS
Action ClassAntimetabolites
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C (59°F to 86°F). Keep in the original container, tightly closed, and protect from moisture and light. Do not refrigerate.
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 within 30 minutes after a meal to reduce stomach upset and improve absorption.
2
Monitor for hand-foot syndrome and report any redness, swelling, or pain on palms and soles.
3
Stay well hydrated, especially if you experience diarrhoea or vomiting.
4
Use effective contraception during treatment and for at least 6 months after the last dose.
5
Avoid live vaccines while on this medicine.
6
Inform your doctor immediately if you experience chest pain, shortness of breath, or irregular heartbeat.
7
Keep all appointments for blood tests to monitor blood counts, liver, and kidney function.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Colorectal cancer
This medicine is commonly prescribed for this.
Likely Use
Breast cancer
This medicine is commonly prescribed for this.
Likely Use
Gastric cancer
This medicine is commonly prescribed for this.
Likely Use
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is rapidly and extensively absorbed from the gastrointestinal tract after oral administration. It is absorbed as an intact molecule and then converted to its active metabolites. Food reduces the rate but not the extent of absorption; therefore, it is recommended to take it within 30 minutes after a meal.
DistributionThis medicine and its metabolites are distributed widely in the body, including into tumour tissues. It has a large volume of distribution. Plasma protein binding is relatively low, with about 60% of capecitabine and its metabolites bound to plasma proteins, mainly albumin.
Protein BindingApproximately 60% bound to plasma proteins, primarily albumin.
MetabolismThis medicine is metabolized in the liver and tumour tissues. It is first converted to 5'-deoxy-5-fluorocytidine (5'-DFCR) by carboxylesterase, then to 5'-deoxy-5-fluorouridine (5'-DFUR) by cytidine deaminase, and finally to 5-fluorouracil (5-FU) by thymidine phosphorylase. 5-FU is further metabolized to inactive dihydrofluorouracil by dihydropyrimidine dehydrogenase (DPD).
Half-LifeThe elimination half-life of capecitabine is approximately 0.5 to 1 hour, and that of its metabolites ranges from 1 to 4 hours. The active metabolite 5-FU has a half-life of about 10 to 20 minutes.
ExcretionThis medicine and its metabolites are primarily excreted in the urine. About 95.5% of the administered dose is recovered in urine, with the majority as metabolites. Faecal excretion is minimal (about 2.6%).
BioavailabilityThe oral bioavailability of capecitabine is high, but it is not fully established from the available information. It is rapidly absorbed and converted to its active metabolites.
Onset of ActionThe onset of anti-tumour action is not immediate and depends on the treatment regimen. Clinical effects may take weeks to become apparent.
Peak Plasma TimePeak plasma concentrations of capecitabine and its metabolites are reached within 1.5 to 2 hours after oral administration.
Duration of ActionThe duration of action is not directly measurable, as the effects on tumour cells are cumulative over the treatment period. The dosing schedule is continuous for 14 days followed by a 7-day rest period in many regimens.

How It Works

This medicine is a prodrug that is converted in the body to 5-fluorouracil (5-FU), which is the active anti-cancer agent. 5-FU is an antimetabolite that interferes with DNA synthesis and RNA function, leading to cell death. The conversion occurs preferentially in tumour tissues due to higher levels of certain enzymes, which may reduce systemic toxicity compared to direct 5-FU administration.

Mechanism Steps

1
Absorption and conversion: This medicine is absorbed from the gastrointestinal tract and converted in the liver and tumour tissues to 5-fluorouracil (5-FU) through a three-step enzymatic process.
2
Inhibition of thymidylate synthase: The active metabolite binds to and inhibits thymidylate synthase, blocking the synthesis of thymidine nucleotides required for DNA replication.
3
Incorporation into RNA and DNA: Metabolites of 5-FU are incorporated into RNA and DNA, leading to faulty RNA processing and DNA damage.
4
Cell cycle arrest and apoptosis: The combined effects result in cell cycle arrest, primarily in the S phase, and trigger programmed cell death in cancer cells.

💡 How to Take distamine 500mg tablet

Strength: This medicine is available as a 500 mg immediate-release tablet for oral administration.

1Take this medicine exactly as prescribed by your doctor.
2Swallow the tablets whole with a glass of water.
3Take within 30 minutes after a meal (breakfast and dinner).
4Do not crush, chew, or split the tablets.
5If you vomit after taking a dose, do not take another dose; wait for the next scheduled dose.
6Follow the 14-day on, 7-day off schedule as directed.
7Keep all appointments for blood tests and check-ups.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 1250 mg/m² taken orally twice daily (morning and evening) for 14 days, followed by a 7-day rest period, as part of a 21-day cycle. The dose may be adjusted based on the specific cancer, treatment regimen, and patient factors such as renal function and toxicity. 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 pediatric oncologist.
Elderly DosageElderly patients (above 65 years) may be more sensitive to the toxic effects of this medicine. Close monitoring is recommended, and dose adjustments may be necessary based on renal function and tolerability.
Renal ImpairmentIn patients with moderate renal impairment (creatinine clearance 30-50 mL/min), a dose reduction to 75% of the standard dose is recommended. This medicine is contraindicated in severe renal impairment (creatinine clearance <30 mL/min).
Hepatic ImpairmentIn patients with mild to moderate hepatic impairment, no dose adjustment is initially required, but close monitoring is advised. In severe hepatic impairment, the safety and efficacy have not been established; use with caution.
Maximum Daily DoseThe maximum daily dose is not established from the available information. Dosing is individualized based on body surface area and clinical judgment.

Dosage Timeline

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

🍽️ Food Timing Guide

Meals
Take within 30 minutes after a meal
Reduces stomach upset and improves absorption.
Grapefruit juice
Avoid
May increase drug levels and toxicity.

⏰ What to Do If You Miss a Dose

📌 Less than 1 hour has passed since the missed dose
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than 1 hour has passed since the missed dose
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of distamine 500mg tablet

✅ Common Side Effects

Diarrhoea (Very common (>10%))
Drink plenty of fluids and inform your doctor if it persists or becomes severe.
Nausea (Very common (>10%))
Take anti-nausea medicines as prescribed and eat small, frequent meals.
Vomiting (Common (1-10%))
Stay hydrated and contact your doctor if vomiting is severe or persistent.
Mouth sores (stomatitis) (Common (1-10%))
Maintain good oral hygiene and use prescribed mouth rinses. Report if severe.
Hand-foot syndrome (Very common (>10%))
Moisturize hands and feet, avoid tight footwear, and inform your doctor if it worsens.
Fatigue (Very common (>10%))
Get adequate rest and pace your activities. Report if it interferes with daily life.
Low blood counts (Common (1-10%))
Regular blood tests are needed. Report any signs of infection, bruising, or bleeding.

🚨 Serious Side Effects

Severe diarrhoea (Common (1-10%))
Seek immediate medical attention if you have more than 4-6 stools per day, blood in stool, or signs of dehydration.
Cardiotoxicity (e.g., chest pain, irregular heartbeat) (Rare (<0.1%))
Call emergency services if you experience chest pain, shortness of breath, or palpitations.
Severe skin reactions (e.g., Stevens-Johnson syndrome) (Rare (<0.1%))
Seek immediate medical attention if you develop blistering, peeling skin, or sores in the mouth or eyes.
Severe bone marrow suppression (Uncommon (0.1-1%))
Report fever, chills, easy bruising, or unusual bleeding immediately.
Liver toxicity (Uncommon (0.1-1%))
Report yellowing of skin or eyes, dark urine, or severe abdominal pain.

⚠️ Rare Side Effects

Acute renal failure
Report decreased urine output or swelling. Seek immediate medical attention.
Pancreatitis
Seek immediate care for severe upper abdominal pain radiating to the back.
Encephalopathy
Report confusion, drowsiness, or seizures immediately.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Major
Phenytoin Major
Leucovorin Major
Allopurinol Moderate
Metronidazole Moderate

🚨 Major Interactions

  • Warfarin and other coumarin anticoagulants
  • Phenytoin
  • Leucovorin (folinic acid)

⚡ Moderate Interactions

  • Allopurinol
  • Metronidazole

🍷 Alcohol Interaction

Alcohol may increase the risk of liver toxicity and gastrointestinal side effects. It is advisable to avoid alcohol while taking this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to capecitabine or any component of the formulation","Severe renal impairment (creatinine clearance

⚠️ Warnings & Precautions

["This medicine should only be prescribed by a qualified cancer specialist.","Patients with DPD deficiency are at increased risk of severe toxicity; testing may be considered.","Monitor for severe diarrhoea, dehydration, and electrolyte imbalance.","Hand-foot syndrome may require dose reduction or interruption.","Cardiotoxicity can occur; monitor patients with pre-existing heart disease.","Avoid live vaccines during treatment.","Use effective contraception during and after treatment.","Do not breastfeed during treatment.","Caution in patients with liver or kidney impairment; dose adjustment may be needed.","Inform patients about the risk of severe skin reactions."]

🤱 Lactation Safety

It is not known whether capecitabine is excreted in human milk. Because of the potential for serious adverse reactions in nursing infants, breastfeeding should be discontinued during treatment and for at least 2 weeks after the last dose.

💊 Overdose Management

There is no specific antidote for capecitabine overdose. Management should include close monitoring of vital signs, blood counts, and organ function. Supportive care, including hydration, antiemetics, and treatment of diarrhoea, should be provided. In case of suspected overdose, contact a poison control centre or emergency department immediately.

⏰ Missed Dose

If you miss a dose, take it as soon as you remember if it is within 1 hour of the scheduled time. If more than 1 hour has passed, skip the missed dose and continue with your regular schedule. Do not double the dose to make up for a missed one.

Additional Safety Advice

General Safety

Always take this medicine exactly as prescribed by your cancer specialist, and never adjust the dose on your own. Swallow the tablets whole with water within 30 minutes after a meal, and do not crush or chew them. If you miss a dose, do not double the next dose; follow your doctor's instructions. Use effective contraception during treatment and for a period after the last dose, as this medicine can harm an unborn baby. Avoid live vaccines while on this medicine. Inform all your healthcare providers, including dentists, that you are taking this medicine. Drink plenty of fluids to stay hydrated, especially if you have diarrhoea or vomiting. Avoid exposure to sunlight and use sunscreen, as this medicine can make your skin more sensitive to light. Do not breastfeed while taking this medicine. Keep all appointments for blood tests and check-ups, as they are essential for safe treatment.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Patients above 65 years may be more sensitive to the side effects of this medicine, especially diarrhoea, hand-foot syndrome, and bone marrow suppression. Close monitoring and dose adjustments are recommended.

🤰 Pregnancy Planning (TTC)

This medicine can cause birth defects. Women of childbearing potential should use effective contraception during treatment and for at least 6 months after the last dose. Men should also use contraception for at least 3 months after the last dose. Consult your doctor if you are planning pregnancy.

🏥 Post-Surgery Considerations

This medicine is often used after surgery for colorectal cancer to reduce the risk of recurrence. Follow your surgeon's and oncologist's instructions regarding when to start treatment and any precautions.

🦷 Dental Procedures

Inform your dentist that you are taking this medicine before any dental procedure. This medicine can increase the risk of bleeding and infection. Your dentist may recommend postponing elective procedures until your blood counts recover.

💚 Lifestyle Tips for Better Results

🏃
Maintain a healthy diet rich in fruits, vegetables, and whole grains.
🥗
Stay physically active as tolerated to reduce fatigue and improve mood.
😴
Get adequate rest and prioritize sleep.
💧
Practice good hand and foot care to prevent hand-foot syndrome.
🧘
Avoid alcohol and smoking.
🌞
Manage stress through relaxation techniques or support groups.

🏋️ Exercise Considerations

This medicine may cause fatigue, dizziness, or weakness. Avoid strenuous exercise if you feel unwell. Consult your doctor before starting any exercise program. Gentle activities like walking may be beneficial.

🥗 Diet Recommendations

Eat small, frequent meals to manage nausea.
Stay well hydrated by drinking plenty of fluids.
Include protein-rich foods to support healing.
Avoid spicy, greasy, or acidic foods if you have mouth sores.
Limit caffeine and alcohol.

💼 Impact on Daily Work & Life

This medicine may cause fatigue, dizziness, or difficulty concentrating, which can affect your ability to work or drive. Avoid driving or operating heavy machinery if you feel unwell. Discuss work adjustments with your employer if needed.

🛑 When to Stop This Medicine

Do not stop taking this medicine without consulting your doctor. If you experience severe side effects, your doctor may temporarily stop or reduce the dose. Always follow your doctor's instructions.

📅 Long-Term Use Effects

Long-term use of this medicine may lead to persistent side effects such as hand-foot syndrome, fatigue, and increased risk of infections due to low blood counts. Regular monitoring of blood counts, liver, and kidney function is essential. Some patients may experience long-term heart effects. Discuss any new or persistent symptoms with your doctor.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Intravenous 5-fluorouracil

An alternative fluoropyrimidine given intravenously, often used when oral therapy is not suitable.

Evidence: Well-established
Targeted therapy

Other medicines that target specific cancer cell markers may be used in combination or as alternatives.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

Live vaccines should be avoided during treatment with this medicine due to the risk of infection. Inactivated vaccines may be given, but their effectiveness may be reduced. Consult your doctor before receiving any vaccine.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight and moisture

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

When traveling, carry this medicine in its original packaging with a copy of your prescription. Keep it in your carry-on luggage to avoid loss. Store at room temperature and protect from extreme heat or cold. If crossing time zones, consult your doctor about adjusting the dosing schedule. Carry enough supply for the entire trip and declare it at customs if required.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 58-year-old man with stage III colon cancer
After surgery, he was prescribed this medicine as adjuvant therapy. He experienced mild hand-foot syndrome and fatigue but managed it with moisturizers and rest. He completed 8 cycles and remains cancer-free after 2 years.
💡 Lesson: Adherence to the prescribed schedule and prompt management of side effects can lead to successful outcomes.
👤 A 45-year-old woman with metastatic breast cancer
She started this medicine in combination with other drugs. She had severe diarrhoea initially, which required a dose reduction. With close monitoring and supportive care, she was able to continue treatment and her tumours shrank significantly.
💡 Lesson: Dose adjustments and supportive care can help manage side effects and allow continued treatment.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: The effects of this medicine are cumulative and may take several weeks to become apparent. Your doctor will monitor your response through regular check-ups and scans.

Q: Can I take this medicine with food?

A: Yes, take this medicine within 30 minutes after a meal to reduce stomach upset and improve absorption.

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

A: If you miss a dose, take it as soon as you remember if within 1 hour. If more than 1 hour has passed, skip the missed dose and continue with your regular schedule. Do not double the dose.

Q: Is this medicine safe during pregnancy?

A: No, this medicine can harm an unborn baby. It is contraindicated during pregnancy. Use effective contraception during treatment and for at least 6 months after the last 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 distamine 500mg 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 cure cancer completely.
    Fact: This medicine is used to treat cancer but may not cure it. It can help control the disease, shrink tumours, and prolong survival.
  • Myth: This medicine is safe for everyone.
    Fact: This medicine is not safe for everyone. It is contraindicated in pregnancy, severe kidney impairment, and DPD deficiency.
  • Myth: You can stop taking this medicine if you feel better.
    Fact: You should never stop taking this medicine without consulting your doctor. Stopping early may allow the cancer to return.

🔄 Alternative Options

Generic Alternatives

  • Capecitabine 500 mg tablet

Brand Alternatives

  • Xeloda 500 mg tablet

📊 Comparison with Similar Medicines

[{"medicine":"This medicine","class":"Fluoropyrimidine antimetabolite","route":"Oral","common_uses":"Colorectal, breast, gastric cancers"},{"medicine":"5-Fluorouracil","class":"Fluoropyrimidine antimetabolite","route":"Intravenous","common_uses":"Colorectal, breast, gastric cancers"}]

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