Medicine Overview of Capnat Tablet
Uses of Capnat Tablet
Capnat 500mg is used with co administration with other medication for the treatment of breast cancer in women which has been relapsed with other medication and has not improved with other medication after the treatment.
Capnat 500mg is also indicated for the treatment of colon or rectal cancer which has become worse condition or spread to other body parts. The will prevent colon cancer from spreading in people after the surgery to remove tumor.
Side effects of Capnat Tablet
Common side effect of Capnat 500mg
Mild skin rash
Numbness or tingling in your hands or feets.
Sign of allgeric reaction: swelling of face, lips, tongue or throat
If you have any one of the symptoms, call your doctor at once:
Fever above 100.5 degrees
Decreased appetite, vomiting, nausea
Blisters or mouth ulcer, red gums
Tenderness in hands or feets
Heart problems: chest pressure, irregular heartbeat, shortness of breath
Kidney problem: no urinating, painful urination, swelling in feet or ankles.
Liver problem: upper stomach pain, itching, decreased appetite, clay colored stool, jaundice
How to use Capnat Tablet
Adult dose for Capnat to treat colorectal cancer
First line treatment for the patients with metastatic colorectal cancer when treated with fluoropyrimidine alone is preferred dose is 1250 mg/m2 given orally twice daily (morning or evening) administrated as 3 week cycles ( 2 weeks followed by a l week rest period)
In patients with DUKES C colon cancer by adjuvant treatment preferred dose is 1250 mg/m2 given orally twice daily (morning or evening) administrated as 3 week cycles ( 2 weeks followed by a l week rest period) for a 8 cycles total ( 24 weeks).
Adult dose for Capnat to treat breast carcinoma
The prescribed dose is 1250 mg/m2 given orally twice daily (morning or evening) administrated as 3 week cycles ( 2 weeks followed by a l week rest period) as a 1 hour IV infusion with combination of docetaxel 75mg/m2.
Capnat in combination with docetaxel:
The prescribed dose is 1250 mg/m2 given orally twice daily (morning or evening) administrated as 3 week cycles ( 2 weeks followed by a l week rest period).
OVERDOSAGE: Acute overdose with Capnat will includes vomiting, diarrhea, gastrointestinal irritation and bleeding. If an overdose suspected, seek emergency medical attention.
How to Capnat Tablet works:
Converstion of capecitabine to 5- fluorouracil (5- FU) is carried out by an enzymes. Normal cells and cancer cells are metabolized in 5- FU to FdUMP ( 5- fluoro- 2- deoxyuridine monophosphate and FUTP ( 5- fluorouridine triphosphate). By two different mechanism the metabolites cause cell injury. Firstly to form a covantly bound ternary complex the FdUMP and the folate cofactor, N5- 10-methylenetetrahydrofolate will bind to thymidylate synthase. By this binding, It may inhibits the formation of thymidylate from 2- deoxyuridylate. Thymidylate is an important messenger of thymidine triphosphate that is essential for the DNA synthesis. Hence the compound deficiency will blocks the cell division.
Secondly, mistakenly FUTP is incorporate in place of uridine triphosphate (UTP)during RNA synthesis. Additionally, FUTP interferes w/ RNA processing and protein synthesis by metabolic error.
Absorption: Readily absorbed. Food decrease rate and extent of absorption. peak plasma concentration is 1.5hr.
Distribution: Plasma protein binding: <60%, mainly to albumin.
Metabolism: capecitabine hydrolysed in the liver into 5'-deoxy-5-fluorocytidine (5'-DFCR) then to 5'-deoxy-5-fluorouridine (5'-DFUR), and subsequently in body tissues into 5-fluorouracil by thymidine phosphorylase enzyme.
Excretion: Via urine (96%, (<3% as unchanged drug) and faeces (<3%). Elimination half-life is 0.75 hr.
In Depth Information on Capnat Tablet:
Expert Advice for Capnat Tablets
Inform the doctor or pharmacist about allergic condition against Capnat if you had, fluorouracil (Adrucil, 5-FU), any another regimens, or any of the compound in capecitabine tablets.
Information about other prescription drugs and nonprescription medications, vitamins, nutritional supplements, and herbal products that taking or plan to take. Like phenytoin (Dilantin), leucovorin, and folic acid (in multivitamins) inform the doctor piror to the treatment than the doctor may require to change the doses of your drug or monitor you carefully for side effects.
You have been previously taking or ever had DPD( dihydropyrimidine dehydrogenase) deficiency of enzyme . Inform the doctor about this then your doctor may preferably inform you avoid taking capecitabine.
Inform the doctor that you have or have ever had renal, hepatic, or cardiac problem
Inform the doctor that are you pregnant or plan to become pregnant. Avoid planning to have children while on treatment with capecitabine. You should use a essential method of conceiving to prevent pregnancy in yourself or your partner during your treatment with capecitabine. The drug will harm the fetus.
Avoid breast feeding while on treatment with capecitabine
Special Warnings of Capnat Tablets
Alcohol interaction with Capnat 500mg is not known. Please consult the doctor
Capnat 500mg have pregnancy category D have described that animal or human studies shown fetal abnormalities and cause harm to the fetal, hence Capnat is unsafe to use during pregnancy clearly. Capnat 500mg is contraindicated in pregnant women or to become pregnant and in men the drug causes regressive changes in the testes including reduces the number of spermatocytes and spermatids.
Capnat 500mg is excreted into breast milk taking account on this, discussion should done on whether to discontinue the breast feeding or the drug. Use of drug is contraindicated during breastfeeding. It is unclear the effect of new born babies
Capnat 500mg will affect the ability of driving due to its side effects. Avoid driving unless you feeling well.
Capnat 500mg used with caution in patients with severe renal disease, dose adjustment is required and limited data is available on the tablets in mild, moderate kidney problem, no dose adjustment is necessary .Please consult doctor.
The patient with severe liver disease should Capnat 500mg with caution. Limited information of the drug in mild to moderateliver disease. No dose adjustment is needed. Please consult with doctor.
If you missed a dose take it as soon as possible, if time reach for next dose, then skip missed dose and continue regular schedule. Do not take extra or 2 dose at a time. Please consult with doctor
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Category: --------------------Anti-Cancer Drugs
Sub Category:-------------------- Capecitabine
Brand name:-------------------- Capnat
Ingeridents(Generic Name) :-------------------- Capecitabine
Package:-------------------- 100 tablets/10X10
Strength :-------------------- 500mg