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Palonosetron hydrochloride injection is indicated in adults for prevention of: acute and delayed nausea and vomiting associated with initial and repeat courses of moderately emetogenic cancer chemotherapy (MEC). acute nausea and vomiting associated with initial and repeat courses highly emetogenic cancer chemotherapy (HEC). postoperative nausea and vomiting (PONV) for up to 24 hours following surgery. Efficacy beyond 24 hours has not been demonstrated. As with other antiemetics, routine prophylaxis is not recommended in patients in whom there is little expectation that nausea and/or vomiting will occur postoperatively. In patients where nausea and vomiting must be avoided during the postoperative period, palonosetron hydrochloride is recommended even where the incidence of postoperative nausea and/or vomiting is low. Palonosetron hydrochloride injection is indicated in pediatric patients 1 month to less than 17 years of age for prevention of: acute nausea and vomiting associated with initial and repeat courses of emetogenic cancer chemotherapy, including highly emetogenic cancer chemotherapy. Palonosetron hydrochloride injection is a serotonin-3 (5-HT 3 ) receptor antagonist indicated in: Adults for prevention of : • acute and delayed nausea and vomiting associated with initial and repeat courses of moderately emetogenic cancer chemotherapy (MEC) ( 1 ) . • acute nausea and vomiting associated with initial and repeat courses of highly emetogenic cancer chemotherapy (HEC) ( 1 …

Palonosetron hydrochloride is contraindicated in patients known to have hypersensitivity to palonosetron [see Warnings and Precautions ( 5.1 )] Hypersensitivity to palonosetron or any of its components (4)

Hypersensitivity reactions, including anaphylaxis and anaphylactic shock: reported in patients with or without known hypersensitivity to other selective 5-HT 3 receptor antagonists. If symptoms occur, discontinue palonosetron hydrochloride and initiate appropriate medical treatment. ( 5.1) Serotonin syndrome : reported with 5-HT 3 receptor antagonists alone, but particularly with concomitant use of serotonergic drugs ( 5.2 , 7.1 ) 5.1 Hypersensitivity Reactions Hypersensitivity reactions, including anaphylaxis and anaphylactic shock, have been reported with administration of palonosetron hydrochloride injection [see Adverse Reactions ( 6.2) ]. These reactions occurred in patients with or without known hypersensitivity to other 5-HT 3 receptor antagonists. If hypersensitivity reactions occur, discontinue palonosetron hydrochloride injection and initiate appropriate medical treatment. Do not reinitiate palonosetron hydrochloride injection in patients who have previously experienced symptoms of hypersensitivity [see Contraindications ( 4) ]. 5.2 Serotonin Syndrome The development of serotonin syndrome has been reported with 5-HT 3 receptor antagonists. Most reports have been associated with concomitant use of serotonergic drugs (e.g., selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), monoamine oxidase inhibitors, mirtazapine, fentanyl, lithium, tramadol, and intravenous methylene blue). Some of the reported cases were …

8.1 Pregnancy Risk Summary There are no available data on palonosetron HCl use in pregnant women to inform a drug-associated risk. In animal reproduction studies, no effects on embryo-fetal development were observed with the administration of oral palonosetron HCl during the period of organogenesis at doses up to 1,894 and 3,789 times the recommended human intravenous dose in rats and rabbits, respectively (see Data). The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth …