Palonosetron
About Palonosetron
Palonosetron is a prescription medicine available in tablet and capsule forms to help prevent nausea and vomiting in adults undergoing cancer treatments. It is specifically designed to stop these symptoms before they start during chemotherapy sessions. This medication belongs to a group of supportive drugs that make cancer therapies more tolerable.
Unlike daily medications, you will typically take Palonosetron as a single dose about one hour before your chemotherapy session begins. It can be taken with or without food, allowing for flexible use depending on how you feel. Making small changes, such as eating light meals before your treatment and staying well-hydrated, can further support your comfort.
While taking this medicine, some people may experience mild and temporary side effects like headaches or constipation. These effects are usually easy to manage, but you must contact your doctor immediately if you experience severe symptoms such as a rapid heartbeat, extreme muscle stiffness, or signs of an allergic reaction.
Before starting this medication, tell your doctor if you have a history of heart rhythm problems, liver damage, or unbalanced mineral levels in your blood. Do not take this if you have had an allergic reaction to similar nausea-preventing medicines in the past.
Certain antidepressants can interact with this medicine, potentially causing a serious chemical imbalance in your nervous system, so it is important to disclose all your current prescriptions. Additionally, avoid drinking alcohol as it can worsen dizziness and stomach irritation. If you are pregnant, breastfeeding, or an older adult, consult your doctor to discuss the risks and benefits before starting treatment.
Uses of Palonosetron
Medicinal Benefits
Palonosetron offers the following benefits when used as prescribed during cancer treatment:
- Prevents acute nausea and vomiting: Palonosetron helps prevent nausea and vomiting caused by chemotherapy, allowing you to stay hydrated and maintain proper nutrition during your recovery.
- Provides long-lasting protection against delayed nausea and vomiting: A single dose before chemotherapy helps protect against acute nausea and vomiting (within the first 24 hours) and delayed nausea and vomiting (24–120 hours after treatment), helping you remain comfortable throughout your recovery.
Directions for Use
- Palonosetron can be taken with or without food as recommended by the doctor.
- Follow your doctor's instructions on the dosage and timing of this medication to ensure safety.
- Swallow Palonosetron as a whole with a glass of water.
- Do not chew, crush, or break it.
Storage
Side Effects of Palonosetron
Common Side Effects (Usually mild)
- Headache
- Constipation
- Feeling tired or weak
- Dizziness
Serious Side Effects (Consult a doctor right away)
- Signs of an allergic reaction, such as hives, swelling of the face, lips, tongue, or throat, and difficulty breathing
- Chest pain, shortness of breath, or a slow, fast, or irregular heartbeat
- Symptoms of serotonin syndrome, including high fever, sweating, shivering, fast heart rate, muscle stiffness, twitching, or confusion
- Severe dizziness or fainting
Medicines Containing this Salt
View AllDrug Warnings
- Check the packaging: Always check the packaging before taking the medicine to ensure it is sealed and has not expired.
- Inform your healthcare provider: Tell your oncologist and pharmacist about all the medicines you take, including over-the-counter medicines, vitamins, and herbal supplements.
- Avoid driving or operating machinery: Do not drive or operate machinery if you feel dizzy or unusually tired after taking Palonosetron.
- Watch for serotonin syndrome: Be alert for signs of serotonin syndrome, especially if you are also taking medicines for depression. Seek immediate medical attention if you develop symptoms such as agitation, confusion, fever, muscle stiffness, or a rapid heartbeat.
- Use in children only if prescribed:Palonosetron should only be used in children when prescribed by a healthcare professional. Always follow your doctor's instructions regarding the correct dose and duration of treatment.
Drug Interactions
Some medicines may interact with Palonosetron. Inform your doctor if you are taking any of the following:
- Serotonergic medications: Taking Palonosetron with certain antidepressants, such as selective serotonin reuptake inhibitors (SSRIs) or serotonin-norepinephrine reuptake inhibitors (SNRIs), may increase the risk of serotonin syndrome, a serious nervous system reaction.
- Heart rhythm medications: Taking Palonosetron with medicines that prolong the QT interval may increase the risk of an irregular heartbeat. Tell your doctor if you are taking medicines that affect heart rhythm.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
consult your doctorThe interaction of alcohol with Palonosetron is unknown. Please consult a doctor before consuming alcohol with Palonosetron.
Pregnancy
consult your doctorPalonosetron is given to pregnant women only if the doctor thinks benefits outweigh risks. Please consult a doctor if you are pregnant.
Breast Feeding
consult your doctorPlease consult a doctor before taking Palonosetron if you are breastfeeding. Palonosetron is given to breastfeeding women only if the doctor thinks benefits are greater than risks.
Driving
cautionPalonosetron may cause tiredness or dizziness in some people. Therefore, avoid driving or operating heavy machinery if you feel tired or dizzy after taking Palonosetron.
Liver
safe if prescribedPalonosetron may be safe to use in patients with liver problems if prescribed by a doctor.
Kidney
safe if prescribedPalonosetron may be safe to use in patients with kidney problems if prescribed by a doctor.
Children
unsafePalonosetron is not recommended for children.
Habit Forming
Diet & Lifestyle Advise
- Eat smaller meals: Consume five or six small meals throughout the day instead of three large ones to keep your stomach from feeling too full.
- Choose bland foods: Stick to dry toast, crackers, oatmeal, or plain rice, which are easier on the stomach than greasy, fried, or spicy foods.
- Stay hydrated: Sip clear liquids like water, clear broths, or sports drinks slowly between meals rather than drinking large amounts during meals.
- Rest upright: Avoid lying down flat for at least 30 to 60 minutes after eating to prevent acid reflux and ease digestion.
- Avoid strong odors: Stay away from cooking smells, perfumes, or smoke, as strong scents can trigger sudden nausea.
Special Advise
Patients Concern
Disease/Condition Glossary
Nausea and vomiting: Nausea is a feeling of uneasiness of the stomach that often comes before vomiting. On the other hand, vomiting is the forcible voluntary or involuntary emptying of stomach contents through the mouth. In short, nausea and vomiting are not diseases but are symptoms of many conditions like infections, motion sickness, an early stage of pregnancy, and gastroparesis (slow stomach emptying). There is a receptor located in our brain known as the chemoreceptor zone (CTZ) that controls vomiting.
FAQs
Palonosetron contains Palonosetron that works by blocking the action of serotonin, a chemical that stimulates the vomiting centre (chemoreceptor trigger zone – CTZ) located in the brain. Thus, it prevents nausea and vomiting.
You are not recommended to take erythromycin with Palonosetron as it may increase the risk of severe irregular heart rhythm. However, please consult your doctor before taking other medicines with Palonosetron.
Palonosetron may cause constipation as a side effect. It is not necessary for everyone taking Palonosetron to experience this side effect. However, if the condition persists or worsens, please consult a doctor.
Palonosetron should be used with caution in patients suffering from heart problems as it may worsen the condition. Therefore, inform your doctor if you have any heart problems before taking have Palonosetron so that the dose may be adjusted appropriately.
You are not recommended to stop taking Palonosetron without consulting your doctor as it may increase the risk of nausea and vomiting during chemotherapy. Therefore, take Palonosetron for as long as your doctor has prescribed it and if you experience any difficulty while taking Palonosetron, please consult your doctor.
Yes, you can take Palonosetron with or without food. Taking it with a light meal or snack may help if you have a sensitive stomach, but it does not affect how well the medicine works. Talk to your doctor if you have questions about your diet during treatment.
You should typically take Palonosetron about one hour before your chemotherapy treatment begins. This timing allows the medicine to absorb fully into your body and start blocking nausea signals before the therapy starts. Talk to your doctor to confirm your specific timing.
Palonosetron is primarily designed to prevent nausea and vomiting from occurring, rather than treating active, ongoing symptoms. It is most effective when taken before your cancer treatment starts. If you experience breakthrough nausea during or after your therapy, talk to your doctor.
Drowsiness is not a highly common side effect of Palonosetron, but some people do report feeling tired or weak after taking it. If you experience fatigue or dizziness, avoid driving or operating heavy machinery until you know how the medicine affects you. Talk to your doctor if this tiredness persists.
It is generally best to avoid alcohol while taking Palonosetron and undergoing chemotherapy. Alcohol can worsen side effects like dizziness, headaches, and dehydration, and it may irritate your stomach lining. Talk to your doctor about whether any amount of alcohol is safe for you.
If you throw up shortly after taking your dose, do not take an extra tablet or capsule on your own. Contact your healthcare team or clinic immediately to let them know, as they will advise you on the safe next steps before your chemotherapy session. Talk to your doctor for specific advice.
The safety of Palonosetron during pregnancy and breastfeeding has not been fully established. Your doctor will weigh the potential benefits of preventing nausea against any risks to the baby before prescribing this medicine. Talk to your doctor if you are pregnant, planning to become pregnant, or breastfeeding.
Some antidepressants can interact with Palonosetron, increasing the risk of a rare but serious condition called serotonin syndrome. It is vital to provide your healthcare team with a complete list of all medications you currently take. Talk to your doctor to ensure this combination is safe for you.
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