Drug Information

Palonosetron Hcl

What is PALONOSETRON HCL?

(PALONOSETRON HCL) This medication is used to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy). It is also used to prevent nausea and vomiting after surgery. Palonosetron works by blocking one of the body's natural substances (serotonin) that causes vomiting.

How should I use PALONOSETRON HCL?

Read the Patient Information Leaflet if available from your pharmacist before you start using palonosetron and each time you get a refill. If you have any questions, ask your doctor or pharmacist. This medication is given by injection into a vein by a health care professional. It is given as directed by your doctor, usually 30 minutes before the start of chemotherapy or right before the start of surgery. The dosage is based on your medical condition and response to treatment. In children, the dosage is also based on weight. Tell your doctor if you vomit or feel nauseated.

What should I tell my health care provider before I take PALONOSETRON HCL?

Before using palonosetron, tell your doctor or pharmacist if you are allergic to it; or to other anti-nausea serotonin blockers (such as ondansetron, granisetron); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history. Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. It is unknown if this medication passes into breast milk. Consult your doctor before breast-feeding.

What may interact with PALONOSETRON HCL?

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. The risk of serotonin syndrome/toxicity increases if you are also taking other drugs that increase serotonin. Examples include street drugs such as MDMA/"ecstasy," St. John's wort, certain antidepressants (including SSRIs such as fluoxetine/paroxetine, SNRIs such as duloxetine/venlafaxine), among others. The risk of serotonin syndrome/toxicity may be more likely when you start or increase the dose of these drugs.

What if I miss a dose of PALONOSETRON HCL?

It is important to get each dose of this medication as scheduled. If you miss a dose, ask your doctor or pharmacist right away for a new dosing schedule. Do not double the dose to catch up.

What side effects may I notice from receiving PALONOSETRON HCL?

Pain, redness, or swelling at the injection site may occur. Headache, constipation, or diarrhea may also occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. This medication may increase serotonin and rarely cause a very serious condition called serotonin syndrome/toxicity. The risk increases if you are also taking other drugs that increase serotonin, so tell your doctor or pharmacist of all the drugs you take (see Drug Interactions section). Get medical help right away if you develop some of the following symptoms: fast heartbeat, hallucinations, loss of coordination, severe dizziness, severe nausea/vomiting/diarrhea, twitching muscles, unexplained fever, unusual agitation/restlessness. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Where should I keep PALONOSETRON HCL?

Not applicable. This medication is given in a clinic and will not be stored at home.

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