TROSPIUM CHLORIDE 60 mg Capsule, Extended Release, 30-count
Other active recalls for Trospium Chloride (different manufacturers) — 1 · tap to view
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the Cholinergic Muscarinic Antagonist class.
Where does this data come from?
🏭 Manufacturer & labeler
Where does this data come from?
🩺 Clinical
Trospium is used to treat an overactive bladder (a condition in which the bladder muscles contract uncontrollably and cause frequent urination, urgent need to urinate, and inability to control urination). Trospium is in a class of medications called antimuscarinics. It works by relaxing the bladder muscles to prevent urgent, frequent, or uncontrolled urination.
Read the full MedlinePlus article ↗- Trospium works by calming the bladder muscle so it doesn't squeeze so often or urgently. In clinical trials, it helped reduce the number of times people needed to rush to the bathr...
- What exactly does trospium do, and will it really help my bladder symptoms?
- Yes — timing really matters with trospium. You need to take it on an empty stomach, at least one hour before you eat, with a full glass of water. A high-fat meal can cut the amount...
- Does it matter when I take it or whether I eat first?
Patient education
Supplement & herbal interactions
Where does this data come from?
Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
Where does this data come from?
🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
-
UNII 7Z8S9VYZ4B
Ethylcellulose is a plant-derived thickener and film-former made by chemically modifying cellulose. It's used as a binder to hold tablet ingredients together, a coating to control how quickly medicine is released, or a thickener in liquid formulations.
-
UNII H77VEI93A8
A synthetic yellow dye used to color medications. It helps identify the drug and make it visually distinctive, with no effect on how the medicine works.
-
UNII XM0M87F357
A dark iron oxide compound that gives medicines their black or dark color. It's used as a colorant in tablets and capsules to help identify the product and make it visually distinctive.
-
UNII 2G86QN327L
Gelatin is a protein derived from animal collagen, commonly used in medicines as a gelling agent and capsule material. It helps create soft or hard capsule shells that hold and release medication, and can also thicken liquid formulations.
-
UNII 3NXW29V3WO
Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
-
UNII 99Q3C7L77T
A synthetic polymer made from acrylic compounds. It acts as a film-former and pH-dependent release agent in tablets and capsules, helping control how and where the active drug dissolves in the digestive system.
-
UNII G2M7P15E5P
Polyethylene glycol 3350 is a synthetic polymer used as a solvent, humectant, and thickening agent in medicines. It helps dissolve other ingredients, retain moisture in the product, and achieve the desired consistency.
-
UNII 6OZP39ZG8H
Polysorbate 80 is a synthetic emulsifier derived from sorbitol and oleic acid. It helps mix oil and water-based ingredients together in medications and improves how the product disperses in the body.
-
UNII 532B59J990
Polyvinyl alcohol is a synthetic polymer made from plant-derived materials. It's used as a binder to hold ingredients together, a film-former in coatings, and a thickener in liquid formulations.
-
UNII WZH3C48M4T
Potassium hydroxide is a strong alkaline chemical used in medicines to adjust and maintain the pH level of liquid formulations, helping keep the product stable and the active ingredients effective.
-
UNII 46N107B71O
Shellac is a natural resin secreted by the lac beetle. It's used as a coating on tablets and capsules to control how quickly the medicine dissolves and to improve appearance and stability.
-
UNII 368GB5141J
A detergent and foaming agent derived from coconut or palm oil. In medications, it helps break down and mix oil and water-based ingredients, aids in tablet disintegration, and improves how the drug dissolves and spreads in the mouth or digestive system.
-
UNII 7SEV7J4R1U
A powder made from a naturally occurring mineral. In medicines, talc works as a glidant and anti-caking agent, helping tablets and capsules flow smoothly during manufacturing and preventing clumping.
-
UNII 15FIX9V2JP
Titanium dioxide is a bright white mineral powder commonly used as a colorant and opacifying agent. It makes pills and tablets white or lighter in color and helps make coatings non-transparent.
-
UNII 8Z96QXD6UM
Triethyl citrate is a clear liquid derived from citric acid. It acts as a plasticizer and solvent in tablet coatings and film formulations, helping the coating remain flexible and adhere properly to the medicine.
15 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per ea | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $1.676 | $50.28 / 30 capsules |
| Medicaid paysCMS SDUD · 12 mo | $2.21 | $66.24 / 30 capsules |
| Medicare drug plans payPart D · Q2 2026 | $3.32 | $99.68 / 30 capsules |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Trospium Chloride ER 60 mg 00574-0118-30 | Padagis | 30 capsules | $1.676 | AB | Availability likely | — |
| Trospium Chloride 60 mg 68001-0427-04 | Bluepoint | 30 capsules | $1.676 | AB | Availability likely | — |
| Trospium Chloride 60 mg 70010-0027-03 | Granules | 30 capsules | $1.676 | AB | Availability likely | — |
| Trospium Chloride 60 mgthis 70436-0174-04 | Slate | 30 capsules | $1.676 | AB | Availability likely | — |
| Trospium Chloride 60 mg 00591-3636-05 | Actavis | 500 capsules | — | AB | FDA listed | — |
| Trospium Chloride 60 mg 60429-0098-30 | Golden | 30 capsules | — | AB | FDA listed | — |
| Trospium Chloride ER 60 mg 63629-8458-01 | Bryant | 30 capsules | — | AB | FDA listed | — |
| Trospium Chloride 60 mg 71205-0917-00 | Proficient | 100 capsules | — | AB | FDA listed | — |
| Trospium Chloride ER 60 mg 71335-2931-01 | Bryant | 30 capsules | — | AB | FDA listed | — |
| Trospium Chloride ER 60 mg 72162-1106-03 | Bryant | 30 capsules | — | AB | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
🗺️ Medicaid utilization & spend
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
🔬 Reported adverse events (FAERS)
Top reported reactions
Reporter sex
Serious outcomes
Where does this data come from?
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 70436-0174-04 You're viewing this | 30 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (70436-174-04) | 2021-06-21 | Active |
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Trospium Chloride Extended-Release Capsules are a muscarinic antagonist indicated for the treatment of overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency, and urinary frequency. Trospium Chloride Extended-Release Capsules are a muscarinic antagonist indicated for the treatment of overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency, and urinary frequency. ( 1 )
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION The recommended dosage of trospium chloride extended-release capsules is one 60 mg capsule daily in the morning. Trospium chloride extended-release capsules should be dosed with water on an empty stomach, at least one hour before a meal. Trospium chloride extended-release capsules are not recommended for use in patients with severe renal impairment (creatinine clearance less than 30 mL/minute) [see Warnings and Precautions ( 5.6 ), Use in Specific Populations ( 8.6 ), and Clinical Pharmacology ( 12.3 )].
The recommended dosage of trospium chloride extended-release capsules is one 60 mg capsule daily in the morning. Trospium chloride extended-release capsules should be dosed with water on an empty stomach, at least one hour before a meal. ( 2 ) Trospium chloride extended-release capsules are not recommended for use in patients with severe renal impairment (creatinine clearance less than 30 mL/minute).
( 2 )
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Trospium Chloride Extended-Release Capsules are supplied as 60 mg capsules (opaque medium orange cap printed with" ” and opaque white body printed with “126” in black ink). 60 mg capsules ( 3 ) image-A
⛔ Contraindications ▾
4 CONTRAINDICATIONS Trospium Chloride Extended-Release Capsules are contraindicated in patients with: • urinary retention • gastric retention • uncontrolled narrow-angle glaucoma • known hypersensitivity to the drug or its ingredients. Angioedema, rash and anaphylactic reaction have been reported. Trospium Chloride Extended-Release Capsules are contraindicated in patients with urinary retention, gastric retention, or uncontrolled narrow-angle glaucoma, and in patients who are at risk for these conditions ( 4 ) patients with known hypersensitivy ( 4 )
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Trospium chloride extended-release capsules should be administered with caution to patients with clinically significant bladder outflow obstruction or gastrointestinal obstructive disorders due to risk of urinary or gastric retention. ( 5.1 , 5.3 ) Angioedema of the face, lips, tongue and/or larynx has been reported with trospium chloride. ( 5.2 ) In patients with narrow angle glaucoma, trospium chloride extended-release capsules should be used only with careful monitoring.
( 5.4 ) Central Nervous System Effects: Somnolence has been reported with trospium chloride extended-release capsules. Advise patients not to drive or operate heavy machinery until they know how trospium chloride extended-release capsules affect them. ( 5.5 ) Trospium chloride extended-release capsules are not recommended for use in patients with severe renal impairment (creatinine clearance less than 30 mL/minute).
( 5.6 ) Alcohol should not be consumed within 2 hours of trospium chloride extended-release capsules administration. ( 5.7 )
5.1Risk of Urinary Retention Trospium chloride extended-release capsules should be administered with caution to patients with clinically significant bladder outflow obstruction because of the risk of urinary retention [see Contraindications ( 4 )].
5.2Angioedema Angioedema of the face, lips, tongue and/or larynx has been reported with trospium chloride. In one case, angioedema occurred after the first dose of trospium chloride. Angioedema associated with upper airway swelling may be life threatening.
If involvement of the tongue, hypopharynx, or larynx occurs, trospium chloride should be promptly discontinued and appropriate therapy and/or measures necessary to ensure a patent airway should be promptly provided.
5.3Decreased Gastrointestinal Motility Trospium chloride extended-release capsules should be administered with caution to patients with gastrointestinal obstructive disorders because of the risk of gastric retention [see Contraindications ( 4 )] . Trospium chloride extended-release capsules, like other antimuscarinic agents, may decrease gastrointestinal motility and should be used with caution in patients with conditions such as ulcerative colitis, intestinal atony and myasthenia gravis.
5.4Controlled Narrow-angle Glaucoma In patients being treated for narrow-angle glaucoma, trospium chloride extended-release capsules should only be used if the potential benefits outweigh the risks, and in that circumstance only with careful monitoring [see Contraindications ( 4 )].
5.5Central Nervous System Effects Trospium chloride extended-release capsules and trospium chloride immediate release tablets are associated with anticholinergic central nervous system (CNS) effects [see Adverse Reactions ( 6.2 )] . A variety of CNS anticholinergic effects have been reported, including dizziness, confusion, hallucinations and somnolence. Patients should be monitored for signs of anticholinergic CNS effects, particularly after beginning treatment or increasing the dose.
Advise patients not to drive or operate heavy machinery until they know how trospium chloride extended-release capsules affect them. If a patient experiences anticholinergic CNS effects, dose reduction or drug discontinuation should be considered.
5.6Patients with Severe Renal Impairment Trospium chloride extended-release capsules are not recommended for use in patients with severe renal impairment (creatinine clearance less than 30 mL/minute) [see Dosage and Administration ( 2 ), Use in Specific Populations ( 8.6 ), and Clinical Pharmacology ( 12.3 )].
5.7Alcohol Interaction Alcohol should not be consumed within 2 hours of trospium chloride extended-release capsules administration. In addition, patients should be informed that alcohol may enhance the drowsiness caused by anticholinergic agents.
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The most common adverse reactions (greater than or equal to 1%) with trospium chloride extended-release capsules are dry mouth (10.7%) and constipation (8.5%). ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Slate Run Pharmaceuticals, LLC at 1-888-341-9214 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, the 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 clinical practice. The data described below reflect exposure to trospium chloride extended-release capsules in 578 patients for 12 weeks in two Phase 3 double-blind, placebo controlled trials (n=1,165). These studies included overactive bladder patients of ages 21 to 90 years, of which 86% were female and 85% were Caucasian.
Patients received 60 mg daily doses of trospium chloride extended-release capsules. Patients in these studies were eligible to continue treatment with trospium chloride extended-release capsules 60 mg for up to one year. From both these controlled trials combined, 769 and 238 patients received treatment with trospium chloride extended-release capsules for at least 24 and 52 weeks, respectively.
There were 157 (27.2%) trospium chloride extended-release capsules patients and 98 (16.7%) placebo patients who experienced one or more double-blind treatment-emergent adverse events (TEAEs) that were assessed by the investigator as at least possibly related to study medication. The most common TEAEs were dry mouth and constipation which, when reported, commonly occurred early in treatment (often within the first week). In the two Phase 3 studies, constipation, dry mouth, and urinary retention led to discontinuation in 1%, 0.7%, and 0.5% of patients treated with trospium chloride extended-release capsules 60 mg daily, respectively.
In the placebo group, there were no discontinuations due to dry mouth or urinary retention and one due to constipation. The incidence of serious adverse events was similar among patients receiving trospium chloride extended-release capsules and patients receiving placebo. No treatment-emergent serious adverse events in either treatment group were judged by the investigators as being possibly related to the study medication.
Table 1 lists those treatment emergent adverse events from the trials that were assessed by the investigator as possibly related to study medication, reported in at least 1% of trospium chloride extended-release capsules patients, and were more common for the trospium chloride extended-release capsules group than for placebo. Table 1: Incidence of treatment-emergent adverse events reported in at least 1% of patients judged by the investigator as at least possibly related to treatment and more common for the Trospium Chloride Extended-Release Capsules group than for placebo MedDRA Preferred term Number of patients (%) Placebo N=587 Trospium Chloride Extended-Release Capsules N=578 Dry mouth 22 (3.7) 62 (10.7) Constipation 9 (1.5) 49 (8.5) Dry eye 1 (0.2) 9 (1.6) Flatulence 3 (0.5) 9 (1.6) Nausea 2 (0.3) 8 (1.4) Abdominal pain 2 (0.3) 8 (1.4) Dyspepsia 4 (0.7) 7 (1.2) Urinary tract infection 5 (0.9) 7 (1.2) Constipation aggravated 3 (0.5) 7 (1.2) Abdominal distension 2 (0.3) 6 (1.0) Nasal dryness 0 (0.0) 6 (1.0) Additional adverse events reported in less than 1% of trospium chloride extended-release capsules treated patients and more common for trospium chloride extended-release capsules than placebo, judged by the investigator at least possibly related to treatment were: vision blurred, feces hard, back pain, somnolence, urinary retention, and dry skin.
Table 2 lists all treatment-emergent adverse events for the trials reported in at least 2% of all trospium chloride extended-release capsules patients and more common for the trospium chloride extended-release…
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Trospium is metabolized by ester hydrolysis and excreted by the kidneys through a combination of tubular secretion and glomerular filtration. Based on in vitro data, no clinically relevant metabolic drug-drug interactions are anticipated with trospium chloride extended-release capsules. However, some drugs which are actively secreted by the kidney may interact with trospium chloride extended-release capsules by competing for renal tubular secretion.
The concomitant use of trospium chloride extended-release capsules with other antimuscarinic agents that produce dry mouth, constipation, and other anticholinergic effects may increase the frequency and/or severity of such effects. Trospium chloride extended-release capsules may potentially alter the absorption of some concomitantly administered drugs due to anticholinergic effects on gastrointestinal motility. Some drugs which are actively secreted by the kidney may interact with trospium chloride extended-release capsules by competing for renal tubular secretion.
( 7 ) Concomitant use with digoxin did not affect the pharmacokinetics of either drug. ( 7.1 ) Exposure to trospium on average was comparable in the presence of and without antacid, however, some individuals demonstrated increases or decreases in trospium exposure in the presence of antacid. The clinical relevance of these findings is not known.
( 7.2 ) Concomitant use with metformin immediate release tablets reduced exposure and peak concentration of trospium. ( 7.3 )
7.1Digoxin Concomitant use of trospium chloride 20 mg twice daily and digoxin did not affect the pharmacokinetics of either drug [see Clinical Pharmacology ( 12.3 )].
7.2Antacid While the systemic exposure of trospium on average was comparable with and without antacid containing aluminum hydroxide and magnesium carbonate, 5 out of 11 individuals in a drug interaction study demonstrated either an increase or decrease in trospium exposure, in presence of antacid. The clinical relevance of these findings is not known [see Clinical Pharmacology ( 12.3 )].
7.3Metformin Co-administration of 500 mg metformin immediate release tablets twice daily reduced the steady-state systemic exposure of trospium by approximately 29% for mean AUC (0-24) and by 34% for mean C max . The effect of a decrease in trospium exposure on the efficacy of trospium chloride extended-release capsules is unknown. The steady-state pharmacokinetics of metformin were comparable when administered with or without 60 mg trospium chloride extended-release capsules once daily under fasted condition.
The effect of metformin at higher doses on trospium PK is unknown [see Clinical Pharmacology ( 12.3 )].
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS The safety and effectiveness of trospium chloride extended-release capsules in pediatric patients have not been established. ( 8.4 )
8.1Pregnancy Teratogenic Effects Pregnancy Category C: There are no adequate and well-controlled studies of trospium chloride extended-release capsules in pregnant women. Trospium chloride extended-release capsules should be used during pregnancy only if the potential benefit to the patient outweighs the risk to the patient and fetus. Women who become pregnant during trospium chloride extended-release capsules treatment are encouraged to contact their physician.
Trospium chloride was not teratogenic at statistically significant levels in rats or rabbits administered doses up to 200 mg/kg/day. This corresponds to systemic exposures up to approximately 16 and 32 times, respectively (based on AUC), the clinical exposure at the maximum recommended human dose (MRHD) of 60 mg. However, in rabbits, one fetus in each of the three treated dose groups (1, 1, and 32 times the MRHD) demonstrated multiple malformations, including umbilical hernia and skeletal malformations.
A no effect level for maternal and fetal toxicity was observed at levels approximately equivalent to the clinical exposure at the MRHD (20 mg/kg/day in rats and rabbits). No developmental toxicity was observed in the offspring of female rats exposed pre- and post-natally to up to 200 mg/kg/day.
8.2Labor and Delivery The effect of trospium chloride extended-release capsules on labor and delivery is unknown.
8.3Nursing Mothers Trospium chloride (2 mg/kg orally and 50 mcg/kg intravenously) was excreted, to a limited extent (less than 1%), into the milk of lactating rats (primarily as parent compound). It is not known whether this drug is excreted into human milk. Because many drugs are excreted into human milk, trospium chloride extended-release capsules should be used during lactation only if the potential benefit justifies the potential risk.
8.4Pediatric Use The safety and effectiveness of trospium chloride extended-release capsules in pediatric patients have not been established.
8.5Geriatric Use Of 1,165 patients in Phase 3 clinical studies of trospium chloride extended-release capsules, 37% (n=428) were ages 65 and over, while 12% (n=143) were ages 75 and over. No overall differences in effectiveness were observed between those subjects aged 65 and over and younger subjects. In trospium chloride extended-release capsules subjects ages 65 and over compared to younger subjects, the following adverse reactions were reported at a higher incidence: dry mouth, constipation, abdominal pain, dyspepsia, urinary tract infection and urinary retention.
In subjects ages 75 and over, three reported a fall and in one of them a relationship to the event could not be excluded.
8.6Renal Impairment Severe renal impairment (creatinine clearance less than 30 mL/minute) may significantly alter the disposition of trospium chloride extended-release capsules. In a study of immediate-release trospium chloride, 4.2-fold and 1.8-fold increases in mean AUC (0-∞) and C max , respectively, were detected in patients with severe renal impairment. Use of trospium chloride extended-release capsules is not recommended in patients with severe renal impairment [see Warnings and Precautions ( 5.4 ) and Clinical Pharmacology ( 12.3 )] .
The pharmacokinetics of trospium chloride have not been studied in patients with creatinine clearance ranging from 30 to 80 mL/min. Trospium is known to be substantially excreted by the kidney, and the risk of adverse reactions may be greater in patients with impaired renal function.
8.7Hepatic Impairment There is no information regarding the effect of severe hepatic impairment on exposure to trospium chloride extended-release capsules. In a study of patients with mild and with moderate hepatic impairment, given 40 mg of immediate-release trospium chloride, mean C max increased 12% and 63%, respectively, an…
🆘 Overdosage ▾
10 OVERDOSAGE Overdosage with antimuscarinic agents, including trospium chloride extended-release capsules, can result in severe antimuscarinic effects. Supportive treatment should be provided according to symptoms. In the event of overdosage, ECG monitoring is recommended.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Trospium chloride is an antispasmodic, antimuscarinic agent. Trospium chloride antagonizes the effect of acetylcholine on muscarinic receptors in cholinergically innervated organs including the bladder. Its parasympatholytic action reduces the tonus of smooth muscle in the bladder.
In vitro receptor binding studies have demonstrated the selectivity of trospium chloride for muscarinic over nicotinic receptors, and similar affinity for the M 2 and M 3 muscarinic receptor subtypes. M 2 and M 3 receptors are found in the bladder and may play a role in the pathogenesis of overactive bladder.
12.2Pharmacodynamics Placebo-controlled studies assessing the impact on urodynamic variables of an immediate-release formulation of trospium chloride were conducted in patients with conditions characterized by involuntary detrusor contractions. The results demonstrated that trospium chloride increases maximum cystometric bladder capacity and volume at first detrusor contraction. Electrophysiology The effect of 20 mg twice daily and up to 100 mg twice daily of an immediate-release formulation of trospium chloride on QT interval was evaluated in a single-blind, randomized, placebo and active (moxifloxacin 400 mg daily) controlled, 5-day parallel trial in 170 male and female healthy volunteer subjects aged 18 to 45 years.
The QT interval was measured over a 24-hour period at steady state. Trospium chloride was not associated with an increase in individual corrected (QTcI) or Fridericia corrected (QTcF) QT interval at any time during steady state measurement, while moxifloxacin was associated with a 6.4 msec increase in QTcF. In this study, asymptomatic, non-specific T-wave inversions were observed more often in subjects receiving trospium chloride than in subjects receiving moxifloxacin or placebo following five days of treatment.
The clinical significance of T-wave inversion in this study is unknown. This finding was not observed during routine safety monitoring in overactive bladder patients from 2 placebo-controlled clinical trials in 591 patients treated with 20 mg twice daily of immediate-release trospium chloride, nor was it observed in 2 placebo-controlled clinical trials in 578 patients treated with trospium chloride extended-release capsules. Also in this study, the immediate-release formulation of trospium chloride was associated with an increase in heart rate that correlated with increasing plasma concentration, with a mean elevation in heart rate compared to placebo of 9 beats per minute for the 20 mg dose and of 18 beats per minute for the 100 mg dose.
In the two Phase 3 trospium chloride extended-release capsules trials the mean increase in heart rate compared to placebo was approximately 3 beats per minute in both studies.
12.3Pharmacokinetics bsorption: Mean absolute bioavailability of a 20 mg immediate-release dose is 9.6% (range 4.0% to 16.1%). Following a single 60 mg dose of trospium chloride extended-release capsules, peak plasma concentration (C max ) of 2.0 ng/mL occurred 5.0 hours post dose. By contrast, following a single 20 mg dose of an immediate-release formulation of trospium chloride, C max was 2.7 ng/mL.
Effect of Food: Administration of trospium chloride extended-release capsules immediately after a high (50%) fat-content meal reduced the oral bioavailability of trospium chloride by 35% for AUC (0-Tlast) and by 60% for C max . Other pharmacokinetic parameters such as T max and t 1/2 were unchanged in the presence of food. A summary of mean (±standard deviation) pharmacokinetic parameters for a single dose of 60 mg trospium chloride extended-release capsules is provided in Table 3.
Table 3: Mean (±SD) Pharmacokinetic Parameter Estimates for a Single 60 mg Oral Dose of Trospium Chloride Extended-Release Capsules in Healthy Volunteers Treatment AUC (0-24) (ng•h/mL) C max (ng/mL) T max a (h) t 1/2 b (h) Trospium Chloride Extended-Release Capsules 60 mg 18.0±13.4 2.0±1.…
🧬 Mechanism of Action ▾
12.1Mechanism of Action Trospium chloride is an antispasmodic, antimuscarinic agent. Trospium chloride antagonizes the effect of acetylcholine on muscarinic receptors in cholinergically innervated organs including the bladder. Its parasympatholytic action reduces the tonus of smooth muscle in the bladder.
In vitro receptor binding studies have demonstrated the selectivity of trospium chloride for muscarinic over nicotinic receptors, and similar affinity for the M 2 and M 3 muscarinic receptor subtypes. M 2 and M 3 receptors are found in the bladder and may play a role in the pathogenesis of overactive bladder.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Trospium Chloride Extended-Release Capsules are supplied as follows: 60 mg capsules, opaque medium orange cap printed with" ” and opaque white body printed with “126” in black ink. NDC 70436-174-04, bottle of 30 capsules with child-resistant closure. Store at 20° to 25°C (68° to 77°F), excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature] Keep this and all drugs out of the reach of children. image-A-2
📋 Description ▾
11 DESCRIPTION Trospium Chloride Extended-Release Capsules are an extended-release formulation of trospium chloride, a quaternary ammonium compound with the chemical name of Spiro [8-azoniabicyclo[3.2.1]octane-8,1'-pyrrolidinium], 3[(hydroxydiphenylacetyl)oxy]-, chloride, (1α, 3β, 5α). The empirical formula of trospium chloride is C 25 H 30 ClNO 3 and its molecular weight is 427.97. The structural formula of trospium chloride is represented below: Trospium chloride is a fine, colorless to slightly yellow, crystalline solid.
The compound’s solubility in water is approximately 1 g/2 mL. Trospium Chloride Extended-Release Capsules contain 60 mg of trospium chloride, a muscarinic antagonist, for oral administration. Each capsule also contains the following inactive ingredients: ethylcellulose, FD&C Yellow 6, gelatin, hypromellose, methacrylic acid, methyl acrylate, methyl methacrylate, polyethylene glycol 3350, polysorbate 80, polyvinyl alcohol, sodium lauryl sulfate, sugar spheres, talc, titanium dioxide, and triethyl citrate.
The imprinting ink have the following ingredients: ferrosoferric oxide, potassium hydroxide and shellac. api-structure
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION “See FDA-Approved Patient Labeling (Patient Information)”
17.1Angioedema Patients should be informed that trospium chloride extended-release capsules may produce angioedema which could result in life-threatening airway obstruction. Patients should be advised to promptly discontinue trospium chloride extended-release capsules therapy and seek immediate medical attention if they experience edema of the tongue, edema of the laryngopharynx, or difficulty breathing.
17.2When Not to Use Prior to treatment, patients should fully understand the risks and benefits of trospium chloride extended-release capsules. In particular, patients should be informed not to take trospium chloride extended-release capsules if they: • have urinary retention; • gastric retention; • uncontrolled narrow-angle glaucoma; • are allergic to any component of trospium chloride extended-release capsules.
17.3Administration Patients should be instructed regarding the recommended dosing and administration of trospium chloride extended-release capsules: • Take one trospium chloride extended-release capsules daily in the morning with water. • Take trospium chloride extended-release capsules on an empty stomach or at least 1 hour before a meal. • Use of alcoholic beverages within 2 hours of dosing with trospium chloride extended-release capsules is not recommended.
17.4Adverse Reactions Patients should be informed that the most common side effects with trospium chloride extended-release capsules are dry mouth and constipation and that other less common side effects include trouble emptying the bladder, blurred vision, and heat prostration. Because anticholinergics, such as trospium chloride extended-release capsules, may produce dizziness or blurred vision, patients should be advised to exercise caution in decisions to engage in potentially dangerous activities until the drug’s effects have been determined.
Patients should be informed that alcohol may enhance the drowsiness caused by anticholinergic agents. Distributed by: Slate Run Pharmaceuticals, LLC Columbus, Ohio 43215 Revised: 08/2025