Cantop 2.5mg Injection (TOPOTECAN)
What is Cantop injection?
Cantop injection is used to treat small cell lung cancer that has relapsed after initial chemotherapy. It belongs to a class of medications called topoisomerase I inhibitors, which work by preventing cancer cells from repairing themselves, leading to their death. This helps in controlling the spread of cancer.
What is the usual dose of Cantop injection?
The usual daily dose of Cantop injection for adults is 2.3 mg/m² taken orally once daily for 5 consecutive days, starting on Day 1 of a 21-day cycle. The dosage for children is not established as safety and effectiveness in pediatric patients have not been determined. Always follow your doctor's advice for dosing.
How do I take Cantop injection?
Cantop injection should be taken once daily for 5 consecutive days, starting on Day 1 of a 21-day cycle. It can be taken with or without food. Swallow the capsules whole with water, and do not open, chew, or crush them. Follow your doctor's instructions carefully.
For how long do I take Cantop injection?
Cantop injection is typically taken once a day for 5 days in a row every 21 days. The number of cycles you will undergo depends on your medical condition and how you respond to the treatment. Your doctor will decide the total duration of your treatment.
What is Cantop injection used for?
Cantop injection is indicated for the treatment of small cell lung cancer that has relapsed after initial chemotherapy. It is used when the cancer has responded to first-line treatment but has returned at least 45 days after the last dose of the initial chemotherapy.
Is Cantop injection effective?
Cantop injection is effective in treating small cell lung cancer that has relapsed after initial chemotherapy. Clinical trials have shown that patients receiving Cantop injection with best supportive care had a statistically significant improvement in overall survival compared to those receiving supportive care alone.
How does one know if Cantop injection is working?
The benefit of Cantop injection is evaluated through regular blood tests to monitor blood cell counts and assess the body's response to the medication. Doctors also monitor for side effects and adjust the dosage as needed to ensure the treatment is effective and safe for the patient.
How does Cantop injection work?
Cantop injection works by inhibiting the enzyme topoisomerase I, which is involved in DNA replication. By preventing this enzyme from repairing DNA breaks, Cantop injection causes cancer cells to die, thereby slowing or stopping the growth of cancer.
Who should avoid taking Cantop injection?
Cantop injection can cause severe myelosuppression, leading to a decrease in blood cells and increasing infection risk. It's contraindicated in patients with severe hypersensitivity to Cantop injection. Patients should be monitored for blood cell counts, diarrhea, and interstitial lung disease. Pregnant women should avoid it due to fetal harm risk.
Can I take Cantop injection with other prescription drugs?
Cantop injection's effectiveness can be affected by drugs that inhibit P-glycoprotein or breast cancer resistance protein, as they increase Cantop injection's concentration in the body. Avoid using these inhibitors concurrently. Always inform your doctor about all medications you're taking to avoid adverse interactions.
Can Cantop injection be taken safely while pregnant?
Cantop injection can cause fetal harm based on animal studies, leading to embryolethality and teratogenicity. Pregnant women should avoid using Cantop injection, and females of reproductive potential should use effective contraception during treatment and for 6 months after the last dose. Males should use contraception for 3 months after the last dose.
Can Cantop injection be taken safely while breastfeeding?
Women are advised not to breastfeed during treatment with Cantop injection and for 1 week after the last dose due to the potential for serious adverse reactions in breastfed infants. Consult your doctor for guidance on feeding your baby during this time.
Is Cantop injection safe for the elderly?
In elderly patients, treatment-related diarrhea is more frequent. It's important for older adults to be closely monitored for side effects, especially diarrhea, which can be severe. No overall differences in effectiveness were observed between older and younger patients, but caution is advised.
How should I store Cantop injection?
Cantop injection should be stored in the refrigerator at temperatures between 36°F to 46°F (2°C to 8°C) and protected from light. Keep it in its original container, tightly closed, and out of reach of children. Do not flush it down the toilet; instead, use a medicine take-back program for disposal.
Does Cantop injection make people tired or drowsy?
Cantop injection can cause fatigue, which is a common side effect. If you experience fatigue, it's important to rest and avoid activities that require alertness, such as driving. Inform your doctor if the fatigue is severe or persistent, as they may need to adjust your treatment.
Does Cantop injection cause stomach upset?
Common gastrointestinal side effects of Cantop injection include nausea, vomiting, and diarrhea. Diarrhea can be severe and life-threatening. If you experience these symptoms, inform your doctor immediately. They may prescribe medications to manage these side effects or adjust your treatment.
Does Cantop injection affect appetite?
Cantop injection can cause a loss of appetite. If you experience a significant change in appetite, it's important to maintain a balanced diet and stay hydrated. Inform your doctor if the loss of appetite is severe, as they may need to adjust your treatment or provide dietary advice.
Does Cantop injection cause weight gain?
Cantop injection may cause weight loss due to side effects like nausea and loss of appetite. If you notice significant weight changes, it's important to maintain a balanced diet and consult your doctor. They may provide dietary advice or adjust your treatment if necessary.
Does Cantop injection cause headaches?
Headaches can occur as a side effect of Cantop injection. If you experience headaches, you can take over-the-counter pain relief medications, but it's important to consult your doctor first. If headaches persist or worsen, inform your doctor as they may need to adjust your treatment.
Does Cantop injection limit driving?
Cantop injection can cause drowsiness, tiredness, or weakness, which may affect your ability to drive. If you experience these symptoms, avoid driving or operating heavy machinery until you know how the medication affects you. Always prioritize safety and consult your doctor if you have concerns.
Is it safe to exercise while taking Cantop injection?
Cantop injection may cause fatigue, which can limit your ability to exercise. If you feel unusually tired, it's important to rest and avoid strenuous activities. Consult your doctor if fatigue affects your daily activities, as they may need to adjust your treatment.
What are Cantop injection possible harms and risks?
Common side effects of Cantop injection include nausea, vomiting, diarrhea, and fatigue. Serious adverse effects include severe myelosuppression, leading to decreased blood cell counts and increased infection risk. Diarrhea can be severe and life-threatening. Always inform your doctor of any side effects experienced.
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