4 ML amisulpride 2.5 MG/ML Injection [Barhemsys]

INDICATIONS AND USAGE BARHEMSYS ® is indicated in adults for: prevention of postoperative nausea and vomiting (PONV), either alone or in combination with an antiemetic of a different class. treatment of PONV in patients who have received antiemetic prophylaxis with an agent of a different class or have not received prophylaxis. BARHEMSYS is a dopamine-2 (D 2 ) antagonist indicated in adults for: Prevention of postoperative nausea and vomiting (PONV), either alone or in combination with an antiemetic of a different class. ( 1 ) Treatment of PONV in patients who have received antiemetic prophylaxis with an agent of a different class or have not received prophylaxis. ( 1 )

DOSAGE AND ADMINISTRATION The recommended dosage of BARHEMSYS: Prevention of PONV, either alone or in combination with another antiemetic : 5 mg as a single intravenous dose infused over 1 to 2 minutes at the time of induction of anesthesia. ( 2.1 ) Treatment of PONV : 10 mg as a single intravenous dose infused over 1 to 2 minutes in the event of nausea and/or vomiting after a surgical procedure. ( 2.1 ) See full prescribing information for preparation and administration instructions . ( 2.2 ) 2.1 Recommended Dosage The recommended adult dosage of BARHEMSYS and infusion rate by indication is shown in the table below: Indication Adult Dosage Regimen Prevention of PONV 5 mg as a single intravenous injection infused over 1 to 2 minutes at the time of induction of anesthesia [see Dosage and Administration (2.2) ] . Treatment of PONV 10 mg as a single intravenous injection infused over 1 to 2 minutes in the event of nausea and/or vomiting after a surgical procedure [see Dosage and Administration (2.2) ] . 2.2 Preparation and Administration Dilution of BARHEMSYS is not required before administration. BARHEMSYS is chemically and physically compatible with Water for Injection, 5% Dextrose Injection, 0.9% Sodium Chloride Injection, and Lactated Ringer's Solution (also known as Ringer's Lactate Solution, Compound Sodium Lactate Solution, and Hartmann's Solution), any of which may be used to flush an intravenous line before or after administration of BARHEMSYS. Protect from light. BARHEMSYS is subject to photodegradation. Administer BARHEMSYS within 12 hours of removal of the vial from the protective carton. Prior to administration, inspect the BARHEMSYS solution visually for particulate matter and discoloration. Discard if particulate matter or discoloration is observed.

WARNINGS AND PRECAUTIONS QT Prolongation : Occurs in a dose- and concentration-dependent manner. Avoid use in patients with congenital long QT syndrome and in patients taking droperidol. ECG monitoring is recommended in patients with pre-existing arrhythmias/cardiac conduction disorders; electrolyte abnormalities (e.g., hypokalemia or hypomagnesemia); congestive heart failure; and in patients taking other medicinal products (e.g., ondansetron) or with other medical conditions known to prolong the QT interval. ( 5.1 , 7.2 ) 5.1 QT Prolongation BARHEMSYS causes dose- and concentration-dependent prolongation of the QT interval [see Clinical Pharmacology (12.2) ] . The recommended dosage is 5 or 10 mg as a single intravenous dose infused over 1 to 2 minutes [see Dosage and Administration (2.1) ] . Avoid use in patients with congenital long QT syndrome and in patients taking droperidol. Electrocardiogram (ECG) monitoring is recommended in patients with pre-existing arrhythmias/cardiac conduction disorders; electrolyte abnormalities (e.g., hypokalemia or hypomagnesemia); congestive heart failure; and in patients taking other medicinal products (e.g., ondansetron) or with other medical conditions known to prolong the QT interval [see Drug Interactions (7.2) ] .

CONTRAINDICATIONS BARHEMSYS is contraindicated in patients with known hypersensitivity to amisulpride [see Adverse Reactions (6.2) ] . Known hypersensitivity to amisulpride. ( 4 )

Mechanism of Action Amisulpride is a selective dopamine-2 (D 2 ) and dopamine-3 (D 3 ) receptor antagonist. D 2 receptors are located in the chemoreceptor trigger zone (CTZ) and respond to the dopamine released from the nerve endings. Activation of CTZ relays stimuli to the vomiting center which is involved in emesis. Studies in multiple species indicate that D 3 receptors in the area postrema also play a role in emesis. Studies conducted in ferrets have shown that amisulpride inhibits emesis caused by apomorphine, with an estimated ED 50 of less than 1 mcg/kg, subcutaneously; and inhibits cisplatin-induced emesis at 2 mg/kg and morphine-induced emesis at 3 to 6 mg/kg, when given intravenously. Amisulpride has no appreciable affinity for any other receptor types apart from low affinities for 5-HT 2B and 5-HT 7 receptors.