Topotecan is mainly used to manage advanced stages of cancer, particularly ovarian cancer, small cell lung cancer, and cervical cancer. It belongs to the class of chemotherapy medicines known as topoisomerase inhibitors.
It may also be used for other types of cancer as determined by an oncologist, making it an 'off-label' use.
Bone marrow suppression
Nausea and vomiting
Diarrhoea
Fatigue and weakness
Hair loss
Topotecan is a type of chemotherapy medicine categorised as a topoisomerase inhibitor.
It works by blocking the action of an enzyme called topoisomerase I. This enzyme is important for DNA replication and repair in cells. By inhibiting topoisomerase I, Topotecan interferes with DNA replication, causing DNA damage in cancer cells. This damage prevents these cells from dividing and multiplying, leading ultimately to cell death. Through this mechanism, Topotecan manages the growth and spread of certain types of cancers.
BDS, MDS
BMS, FMC, MD Resident
Topotecan is available in two primary dosage forms: an intravenous (IV) infusion and oral capsules.
The IV infusion of Topotecan is administered directly into a vein over 30 minutes.
Oral capsules of Topotecan should be taken by mouth and are intended to be swallowed whole.
Topotecan is intended for use in adult patients. It is not commonly prescribed for children or adolescents.
This medicine is contraindicated in patients with a history of severe hypersensitivity reactions to Topotecan.
Patients with severe bone marrow suppression should not use this medicine.
An overdose of Topotecan can lead to severe complications such as extreme bone marrow suppression which may result in infection or bleeding. Immediate medical attention is required in the event of an overdose.
If a dose of Topotecan is missed, it should be taken as soon as possible unless it is nearly time for the next scheduled dose. Do not double the next dose to make up for the missed one.
Most side effects are temporary and generally harmless and resolve when discontinuing this medicine. However, if you experience any severe side effects or worsening of any of the symptoms, please consult your doctor.
To manage nausea, it may help to take this medicine with a small amount of water and rest in a quiet, dark room after administration.
Keeping well-hydrated can assist in reducing the risk of kidney-related side effects and can also help ease fatigue.
Topotecan may cause fatigue and weakness which could affect your ability to drive or operate heavy machinery. It is advisable to avoid these activities if you experience these side effects.
Topotecan is not recommended during pregnancy or while breastfeeding due to potential risks to the baby. It is crucial to use effective contraception during treatment and consult your doctor for guidance.
Patients with impaired kidney function need to exercise caution when using Topotecan. Dosage adjustments may be necessary based on kidney function tests.
Those with reduced liver function should also use Topotecan cautiously. Regular monitoring of liver function may be required.
Ensure adequate hydration throughout the treatment period with Topotecan to help manage potential side effects such as fatigue and kidney stress.
Maintain a balanced diet rich in fruits, vegetables, and proteins which can help support the body during chemotherapy treatment.
It is advisable to manage stress through gentle activities such as yoga or meditation which do not exert the body but help maintain mental wellbeing.
Avoiding infections is critical; practice good hygiene and avoid large crowds or people who are sick.
Rest is crucial; ensure you get enough sleep and rest between treatment cycles to help your body recover.
Frequently asked questions
Yes, Topotecan can cause hair loss or alopecia as a side effect. However, this is usually temporary and your hair should start to grow back a few weeks after treatment ends.
Yes, Topotecan may interact with other chemotherapy agents (such as cisplatin), medications that affect bone marrow function (like G-CSF), and medicines that impact liver enzymes (such as ketoconazole). These interactions can affect the effectiveness and safety of the treatment.
Yes, fatigue and weakness are common side effects of Topotecan. However, they usually resolve after the treatment ends.
Yes, one of the possible side effects of Topotecan is loss of appetite. If this becomes a concern or if you lose a lot of weight, consult your doctor for advice.
Topotecan is not a steroid.
Some side effects like bone marrow suppression, which leads to low blood cell counts can have long-term effects if not managed properly. Also, in rare cases, it may cause interstitial lung disease (scarring of lung tissue) which can be life-threatening.
Topotecan IV solution must be stored in a refrigerator at 2-8°C (36-46°F) in its original carton to protect it from light. The capsules should be stored at 20-25°C (68-77°F). Both formulations must be kept out of reach of children.
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