Glycopyrrolate

INDICATIONS AND USAGE In Anesthesia: Glycopyrrolate Injection is indicated for use as a preoperative antimuscarinic to reduce salivary, tracheobronchial, and pharyngeal secretions; to reduce the volume and free acidity of gastric secretions; and to block cardiac vagal inhibitory reflexes during induction of anesthesia and intubation. When indicated, Glycopyrrolate Injection may be used intraoperatively to counteract surgically or drug - induced or vagal reflexes associated arrhythmias. Glycopyrrolate protects against the peripheral muscarinic effects (e.g., bradycardia and excessive secretions) of cholinergic agents such as neostigmine and pyridostigmine given to reverse the neuromuscular blockade due to non-depolarizing muscle relaxants. In Peptic Ulcer: For use in adults as adjunctive therapy for the treatment of peptic ulcer when rapid anticholinergic effect is desired or when oral medication is not tolerated.

DOSAGE AND ADMINISTRATION NOTE: CONTAINS BENZYL ALCOHOL (See PRECAUTIONS ) Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration whenever solution and container permit. Glycopyrrolate Injection may be administered intramuscularly, or intravenously, without dilution, in the following indications. Adults Preanesthetic Medication The recommended dose of Glycopyrrolate Injection is 0.004 mg/kg by intramuscular injection, given 30 to 60 minutes prior to the anticipated time of induction of anesthesia or at the time the preanesthetic narcotic and/or sedative are administered. Intraoperative Medication Glycopyrrolate Injection may be used during surgery to counteract drug-induced or vagal reflexes and their associated arrhythmias (e.g., bradycardia). It should be administered intravenously as single doses of 0.1 mg and repeated, as needed, at intervals of 2 to 3 minutes. The usual attempts should be made to determine the etiology of the arrhythmia, and the surgical or anesthetic manipulations necessary to correct parasympathetic imbalance should be performed. Reversal of Neuromuscular Blockade The recommended dose of Glycopyrrolate Injection is 0.2 mg for each 1 mg of neostigmine or 5 mg of pyridostigmine. In order to minimize the appearance of cardiac side effects, the drugs may be administered simultaneously by intravenous injection and may be mixed in the same syringe. Peptic Ulcer The usual recommended dose of Glycopyrrolate Injection is 0.1 mg administered at 4-hour intervals, 3 or 4 times daily intravenously or intramuscularly. Where more profound effect is required, 0.2 mg may be given. Some patients may need only a single dose, and frequency of administration should be dictated by patient response up to a maximum of four times daily. Glycopyrrolate Injection is not recommended for the treatment of peptic ulcer in pediatric patients (see PRECAUTIONS – Pediatric Use ). Pediatric Patients (see PRECAUTIONS - Pediatric Use) Preanesthetic Medication The recommended dose of Glycopyrrolate Injection in pediatric patients is 0.004 mg/kg intramuscularly, given 30 to 60 minutes prior to the anticipated time of induction of anesthesia or at the time the preanesthetic narcotic and/or sedative are administered. Infants (1 month to 2 years of age) may require up to 0.009 mg/kg Intraoperative Medication Because of the long duration of action of Glycopyrrolate Injection if used as preanesthetic medication, additional Glycopyrrolate Injection for anticholinergic effect intraoperatively is rarely needed; in the event it is required the recommended pediatric dose is 0.004 mg/kg intravenously, not to exceed 0.1 mg in a single dose which may be repeated, as needed, at intervals of 2 to 3 minutes. The usual attempts should be made to determine the etiology of the arrhythmia, and the surgical or anesthetic manipulations necessary to correct parasympathetic imbalance should be performed Reversal of Neuromuscular Blockade The recommended pediatric dose of Glycopyrrolate Injection is 0.2 mg for each 1 mg of neostigmine or 5 mg of pyridostigmine. In order to minimize the appearance of cardiac side effects, the drugs may be administered simultaneously by intravenous injection and may be mixed in the same syringe. Peptic Ulcer Glycopyrrolate Injection is not recommended for the treatment of peptic ulcer in pediatric patients (see PRECAUTIONS – Pediatric Use ). DILUENT COMPATIBILITIES Dextrose 5% and 10% in water, or saline, dextrose 5% in sodium chloride 0.45%, sodium chloride 0.9%, and Ringer's Injection. DILUENT INCOMPATIBILIES Lactated Ringer's solution ADMIXTURE COMPATIBILITIES Physical Compatibility: This list does not constitute an endorsement of the clinical utility or safety of co-administration of Glycopyrrolate with these drugs. Glycopyrrolate Injection is compatible for mixing and injection with the following injectable dosage forms: atropine sulfate, USP; Antilirium® (physostigmi …

3 DOSAGE FORMS AND STRENGTHS Glycopyrrolate oral solution is available as a 1 mg/5 mL clear, transparent liquid, free of visible particulate matter for oral administration in 16 fl. oz. (473 mL) bottles. 1 mg/5 mL, oral solution in 16 fl. oz. (473 mL) bottles. ( 3 )

CONTRAINDICATIONS Known hypersensitivity to glycopyrrolate or any of its inactive ingredients. In addition, in the management of peptic ulcer patients, because of the longer duration of therapy, Glycopyrrolate Injection may be contraindicated in patients with the following concurrent conditions: glaucoma; obstructive uropathy (for example, bladder neck obstruction due to prostatic hypertrophy); obstructive disease of the gastrointestinal tract (as in achalasia, pyloroduodenal stenosis, etc.); paralytic ileus, intestinal atony of the elderly or debilitated patient; unstable cardiovascular status in acute hemorrhage; severe ulcerative colitis; toxic megacolon complicating ulcerative colitis; myasthenia gravis.

6 ADVERSE REACTIONS The following serious adverse reactions are described elsewhere in the labeling: ● Constipation or intestinal pseudo-obstruction [see Warnings and Precautions ( 5.1 )] ● Incomplete mechanical intestinal obstruction [see Warnings and Precautions ( 5.2)] The most common adverse reactions reported with glycopyrrolate oral solution are dry mouth, vomiting, constipation, flushing, and nasal congestion. The most common adverse reactions (incidence ≥30%) are dry mouth, vomiting, constipation, flushing, and nasal congestion. (6) To report SUSPECTED ADVERSE REACTIONS, contact Par Pharmaceutical Drug Safety Department at 1-800-828-9393 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The data described below reflect exposure to glycopyrrolate oral solution in 151 subjects, including 20 subjects who participated in an 8-week placebo-controlled study (Study 1) and 137 subjects who participated in a 24-week open-label study (six subjects who received glycopyrrolate oral solution in the placebo-controlled study and 131 new subjects). Table 2 presents adverse reactions reported by ≥ 15% of glycopyrrolate oral solution-treated subjects from the placebo-controlled clinical trial. Table 2: Adverse Reactions Occurring in ≥ 15% of Glycopyrrolate oral solution-Treated Subjects and at a Greater Frequency than Placebo in Study 1 Glycopyrrolate oral solution (N=20) n (%) Placebo (N=18) n (%) Dry Mouth 8 (40%) 2 (11%) Vomiting 8 (40%) 2 (11%) Constipation 7 (35%) 4 (22%) Flushing 6 (30%) 3 (17%) Nasal Congestion 6 (30%) 2 (11%) Headache 3 (15%) 1 (6%) Sinusitis 3 (15%) 1 (6%) Upper Respiratory Tract Infection 3 (15%) 0 Urinary Retention 3 (15%) 0 The following adverse reactions occurred at a rate of <2% of patients receiving glycopyrrolate oral solution in the open-label study. Gastrointestinal: Abdominal distention, abdominal pain, stomach discomfort, chapped lips, flatulence, retching, dry tongue General Disorders: Irritability, pain Infections: Pneumonia, sinusitis, tracheostomy infection, upper respiratory tract infection, urinary tract infection Investigations: Heart rate increase Metabolism and Nutrition: Dehydration Nervous System: Headache, convulsion, dysgeusia, nystagmus Psychiatric: Agitation, restlessness, abnormal behavior, aggression, crying, impulse control disorder, moaning, mood altered Respiratory: Increased viscosity of bronchial secretion, nasal congestion, nasal dryness Skin: Dry skin, pruritus, rash Vascular: Pallor 6.2 Postmarketing Expereince The following adverse reactions have been identified during postapproval use of other formulations of glycopyrrolate for other indications. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Additional adverse reactions identified during postapproval use of glycopyrrolate tablets include: loss of taste and suppression of lactation.

7 DRUG INTERACTIONS Drugs Affected by Reduced GI Transit Time Glycopyrrolate reduces GI transit time, which may result in altered release of certain drugs when formulated in delayed- or controlled-release dosage forms. • The passage of potassium chloride tablets through the GI tract may be arrested or delayed with coadministration of glycopyrrolate. Solid dosage forms of potassium chloride are contraindicated [see Contraindications ( 4 )]. • Digoxin administered as slow dissolution oral tablets may have increased serum levels and enhanced action when administered with glycopyrrolate. Monitor patients receiving slow dissolution digoxin for increased action if glycopyrrolate is coadministered regularly. Consider the use of other oral dosage forms of digoxin (e.g., elixir or capsules). Amantadine The anticholinergic effects of glycopyrrolate may be increased with concomitant administration of amantadine. Consider decreasing the dose of glycopyrrolate during coadministration of amantadine. Drugs Whose Plasma Levels May be Increased by Glycopyrrolate Coadministration of glycopyrrolate may result in increased levels of certain drugs. • Atenolol’s bioavailability may be increased with coadministration of glycopyrrolate. A reduction in the atenolol dose may be needed. • Metformin plasma levels may be elevated with coadministration of glycopyrrolate, increasing metformin’s pharmacologic and toxic effects. Monitor clinical response to metformin with concomitant glycopyrrolate administration; consider a dose reduction of metformin if warranted. Drugs Whose Plasma Levels May be Decreased by Glycopyrrolate Coadministration of glycopyrrolate may result in decreased levels of certain drugs. • Haloperidol’s serum level may be decreased when coadministered with glycopyrrolate, resulting in worsening of schizophrenic symptoms, and development of tardive dyskinesia. Closely monitor patients if coadministration cannot be avoided. • Levodopa’s therapeutic effect may be reduced with glycopyrrolate administration. Consider increasing the dose of levodopa. • Digoxin tablets: Use with glycopyrrolate can increase digoxin serum levels. Monitor patients and consider use of alternative dosage forms of digoxin. ( 7 ) • Amantadine: Effects of glycopyrrolate may be increased with concomitant administration of amantadine. Consider decreasing the dose of glycopyrrolate during concomitant use. ( 7 ) • Atenolol or metformin: Glycopyrrolate may increase serum levels of atenolol or metformin. Consider dose reduction when used with glycopyrrolate. ( 7 ) • Haloperidol or levodopa: Glycopyrrolate may decrease serum levels of haloperidol or levodopa. Consider a dose increase when used with glycopyrrolate. ( 7 )

8 USE IN SPECIFIC POPULATIONS Pediatric use: The safety and effectiveness of glycopyrrolate has not been established in patients less than 3 years of age. ( 8.4 ) Renal impairment: Use glycopyrrolate oral solution with caution in patients with renal impairment. ( 8.6 ) 8.1 Pregnancy Risk Summary There are no available data in pregnant women for glycopyrrolate oral solution to inform decisions concerning any drug-associated risks. In pregnant rats, daily oral administration of glycopyrrolate during organogenesis at dose exposures 2.5 times to 113 times the exposure at the maximum recommended human dose (MRHD) did not result in an increased incidence of gross external or visceral defects [see Data]. When glycopyrrolate was administered intravenously to pregnant rabbits during organogenesis at dose exposures equivalent to up to approximately 7.8 times the exposure at the MRHD, no adverse effects on embryo-fetal development were seen. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Animal Data Glycopyrrolate was orally administered to pregnant rats at dosages of 50 mg/kg/day, 200 mg/kg/day, and 400 mg/kg/day during the period of organogenesis. These dosages resulted in systemic exposures (estimated AUC 0-inf values) approximately 2.5 times, 23 times, and 113 times, respectively, the estimated systemic exposure in humans at the MRHD (9 mg per day, administered in three divided doses). Glycopyrrolate had no effect on maternal survival, but significantly reduced mean maternal body weight gain over the period of dosing at all dosages evaluated. Mean fetal weight was significantly reduced in the 200 mg/kg/day and 400 mg/kg/day dose groups. There were two litters with all resorbed fetuses in the 400 mg/kg/day dose group. There were no effects of treatment on the incidence of gross external or visceral defects. Minor treatment-related skeletal effects included reduced ossification of various bones in the 200 mg/kg/day and 400 mg/kg/day dose groups; these skeletal effects were likely secondary to maternal toxicity. Glycopyrrolate was intravenously administered to pregnant rabbits at dosages of 0.1 mg/kg/day, 0.5 mg/kg/day, and 1 mg/kg/day during the period of organogenesis. These dosages resulted in systemic exposures (estimated AUC 0-inf values) approximately 0.8 times, 4.6 times, and 7.8 times, respectively, the estimated systemic exposure in humans at the MRHD. Glycopyrrolate did not affect maternal survival under the conditions of this study. Mean maternal body weight gain and mean food consumption over the period of dosing were lower than the corresponding control value in the 0.5 mg/kg/day and 1 mg/kg/day treatment groups. There were no effects of treatment on fetal parameters, including fetal survival, mean fetal weight, and the incidence of external, visceral, or skeletal defects. Female rats that were pregnant or nursing were orally dosed with glycopyrrolate daily at dosages of 0 mg/kg/day, 50 mg/kg/day, 200 mg/kg/day, or 400 mg/kg/day, beginning on day 7 of gestation, and continuing until day 20 of lactation. These dosages resulted in systemic exposures (estimated AUC 0-inf values) approximately 2.5 times, 23 times, and 113 times, respectively, the estimated systemic exposure in humans at the MRHD (9 mg per day, administered in three divided doses). Mean body weight of pups in all treatment groups was reduced compared to the control group during the period of nursing, but eventually recovered to be comparable to the control group, post-weaning. No other notable delivery or litter parameters were affected by treatment in any group, including no effects on mean duration of gestation or mean numbers of live pups per litter. No treatment-related effects on survival or adverse clinical signs were …

12.1 Mechanism of Action Glycopyrrolate is a competitive inhibitor of acetylcholine receptors that are located on certain peripheral tissues, including salivary glands. Glycopyrrolate indirectly reduces the rate of salivation by preventing the stimulation of these receptors.

DESCRIPTION Glycopyrrolate Injection is a synthetic anticholinergic agent. Each 1 mL contains: Glycopyrrolate, USP 0.2 mg Water for Injection, USP q.s. Benzyl Alcohol, NF 0.9 % (preservative) pH adjusted, when necessary, with hydrochloric acid and/or sodium hydroxide. For Intramuscular (IM) or Intravenous (IV) administration. Glycopyrrolate is a quaternary ammonium salt with the following chemical name: 3[(cyclopentylhydroxyphenylacetyl)oxy]-1,1-dimethyl pyrrolidinium bromide. The molecular formula is C 19 H 28 BrNO 3 and the molecular weight is 398.33. Its structural formula is as follows: Glycopyrrolate occurs as a white, odorless crystalline powder. It is soluble in water and alcohol, and practically insoluble in chloroform and ether. Unlike atropine, glycopyrrolate is completely ionized at physiological pH values. Glycopyrrolate Injection is a clear, colorless, sterile liquid; pH 2.0 – 3.0. The partition coefficient of glycopyrrolate in a n-octanol /water system is 0.304 (log 10 P= -1.52) at ambient room temperature (24°C). Molecular structure

OVERDOSAGE To combat peripheral anticholinergic, a quaternary ammonium anticholinesterase such as neostigmine methylsulfate (which does not cross the blood–brain barrier) may be given intravenously in increments of 0.25 mg in adults. This dosage may be repeated every five to ten minutes until anticholinergic overactivity is reversed or up to a maximum of 2.5 mg. Proportionately smaller doses should be used in pediatric patients. Indication for repetitive doses of neostigmine should be based on close monitoring of the decrease in heart rate and the return of bowel sounds. If CNS symptoms (e.g., excitement, restlessness, convulsions, psychotic behavior) occur, physostigmine (which does cross the blood–brain barrier) may be used. Physostigmine 0.5 to 2 mg should be slowly administered intravenously and repeated as necessary up to a total of 5 mg in adults. Proportionately smaller doses should be used in pediatric patients. To combat hypotension, administer IV fluids and/or pressor agents along with supportive care. Fever should be treated symptomatically. Following overdosage, a curare-like action may occur, i.e., neuromuscular blockade leading to muscular weakness and possible paralysis. In the event of a curare-like effect on respiratory muscles, artificial respiration should be instituted and maintained until effective respiratory action returns.

HOW SUPPLIED Glycopyrrolate Injection, 0.2 mg/mL, is available as: 0.2 mg/1 mL Single-dose Vials packaged in 25s (NDC 70069- 617 -25) 0.4 mg/2 mL (0.2 mg/mL) Single-dose Vials packaged in 25s (NDC 70069- 618 -25) 1 mg/5 mL (0.2 mg/mL) Multiple-dose Vials packaged in 25s (NDC 70069- 619 -25) 4 mg/20 mL (0.2 mg/mL) Multiple-dose Vials packaged in 10s (NDC 70069- 616 -10) Store at 20°C to 25°C (68°F to 77°F) [See USP Controlled Room Temperature]. Trademarks are the property of their respective owners. To report SUSPECTED ADVERSE REACTIONS, contact Somerset Therapeutics, LLC at 1-800-417-9175 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. Manufactured for: Somerset Therapeutics, LLC Somerset, NJ 08873 Made in India Code No.:KR/DRUGS/KTK/28/289/97 ST- GLY/P/01 Revised: February, 2024 1200794