Capecitabine Tablets 500mg
Composition:
Each film-coated tablet contains:
Description:
Capecitabine is an oral prodrug of 5-fluorouracil (5-FU), a pyrimidine analog that inhibits DNA synthesis, leading to cancer cell death. It is selectively activated in tumor tissues, enhancing its efficacy while reducing systemic toxicity.
Indications:
Capecitabine Tablets are indicated for the treatment of:
- Metastatic colorectal cancer (mCRC)
- Adjuvant therapy for stage III colon cancer
- Metastatic breast cancer, either as monotherapy or in combination with other agents (e.g., docetaxel)
- Gastric cancer (off-label in some regions)
Dosage & Administration:
Standard Dosage (Adults Only):
Colorectal and Breast Cancer:
- 1250 mg/m² twice daily for 14 days, followed by a 7-day rest period (21-day cycle)
- Continue treatment as prescribed by a healthcare provider
Combination Therapy (with Docetaxel for Breast Cancer):
- Capecitabine 1250 mg/m² twice daily for 14 days + Docetaxel 75 mg/m² IV on Day 1 of a 21-day cycle
Dose Adjustments:
- Elderly Patients: Consider lower starting doses due to increased toxicity risks
- Renal Impairment:
- Moderate (CrCl 30-50 mL/min): Reduce dose by 25%
- Severe (CrCl <30 mL/min): Contraindicated
- Hepatic Impairment: Use with caution in patients with liver dysfunction
Administration:
- Take orally within 30 minutes after a meal
- Swallow whole with water-do not crush, chew, or split
- Maintain consistent dosing times
Contraindications:
- Severe renal impairment (CrCl <30 mL/min)
- Hypersensitivity to Capecitabine, 5-FU, or any excipient
- Severe bone marrow suppression
- Pregnancy and breastfeeding (Category D-may cause fetal harm)
Precautions:
- Hand-Foot Syndrome (Palmar-Plantar Erythrodysesthesia): Monitor for redness, swelling, pain, or peeling of the palms and soles
- Cardiotoxicity: Use with caution in patients with a history of coronary artery disease
- Hematologic Toxicity: Monitor for neutropenia, thrombocytopenia, and anemia
- Diarrhea & Dehydration: Risk of severe diarrhea; rehydrate promptly
- Drug Interactions: Avoid warfarin (increased bleeding risk) and phenytoin (toxicity risk)
Adverse Reactions:
- Common: Fatigue, diarrhea, nausea, vomiting, stomatitis, hand-foot syndrome
- Serious: Bone marrow suppression, cardiotoxicity, liver dysfunction, severe skin reactions
Drug Interactions:
- Warfarin & Other Anticoagulants: Increases INR and bleeding risk-monitor INR closely
- Leucovorin: May enhance toxicity
- CYP2C9 Substrates (Phenytoin): Increased plasma levels-monitor closely
Overdose & Management:
- Symptoms: Nausea, vomiting, diarrhea, mucositis, gastrointestinal bleeding, bone marrow suppression
- Treatment: Supportive care, IV hydration, and symptom management (antidiarrheals, antiemetics)
Storage Conditions:
- Store below 25°C, in a dry place
- Keep in original packaging to protect from moisture
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