Loperamide hydrochloride 2 mg Capsule, 500-count
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Opioid Agonist class.
Where does this data come from?
🏭 Manufacturer & labeler
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🩺 Clinical
- Loperamide works by binding to the same type of receptors in your gut that opioids do, but it stays mostly in the intestines and very little gets into your bloodstream at the recom...
- What exactly does loperamide do — and is it like taking an opioid?
- For acute diarrhea, stop and call your doctor if symptoms don't improve within 2 days, or if they get worse. You should also stop right away if you develop bloating or a swollen be...
- How long can I take loperamide before I should see a doctor?
Patient education
Supplement & herbal interactions
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💊 What it looks like
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🧪 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.
Where does this data come from?
IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
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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 | $0.057 | $28.25 / 500 capsules |
| Medicaid paysCMS SDUD · 12 mo | $0.2894 | $144.70 / 500 capsules |
| Medicare drug plans payPart D · Q2 2026 | $0.2376 | $118.80 / 500 capsules |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Loperamide Hydrochloride 2 mg 00093-0311-01 | Teva | 100 capsules | $0.056 | AB | Availability likely | — |
| Loperamide Hydrochloride 2 mg 00378-2100-01 | Mylan | 100 capsules | $0.056 | AB | Availability likely | — |
| Loperamide Hydrochloride 2 mg 00904-7472-61 | Major | 100 capsules | $0.056 | AB | Availability likely | — |
| Loperamide Hydrochloride 2 mg 42799-0605-01 | Edenbridge | 100 capsules | $0.056 | AB | Availability likely | — |
| Loperamide Hydrochloride 2 mg 50268-0482-15 | AvPAK | 50 capsules | $0.056 | AB | Availability likely | — |
| Loperamide Hydrochloride 2 mg 51079-0690-20 | Mylan | 100 capsules | $0.056 | AB | Availability likely | — |
| Loperamide Hydrochloride 2 mg 59651-0691-01 | Aurobindo | 100 capsules | $0.056 | AB | Availability likely | — |
| Loperamide Hydrochloride 2 mg 60687-0229-01 | American | 100 capsules | $0.056 | AB | Availability likely | — |
| Loperamide Hydrochloride 2 mg 69452-0271-20 | Bionpharma | 100 capsules | $0.056 | AB | Availability likely | — |
| Loperamide hydrochloride 2 mgthis 72578-0138-05 | Viona | 500 capsules | $0.056 | AB | Availability likely | — |
| Loperamide Hydrochloride 2 mg 72603-0328-01 | NorthStar | 100 capsules | $0.056 | AB | Availability likely | — |
| Anti-Diarrheal 2 mg 46122-0581-62 | AMERISOURCE | 12 capsules | $0.136 | — | Availability likely | +141% |
| Anti-Diarrheal 2 mg 70000-0461-01 | CARDINAL | 12 capsules | $0.136 | — | Availability likely | +141% |
| Anti-Diarrheal 2 mg 70677-1062-01 | STRATEGIC | 12 capsules | $0.136 | — | Availability likely | +141% |
| Anti-Diarrheal 2 mg 83324-0208-12 | CHAIN | 12 capsules | $0.136 | — | Availability likely | +141% |
| Anti-Diarrheal 2 mg 83324-0209-24 | CHAIN | 12 capsules | $0.136 | — | Availability likely | +141% |
| Anti-Diarrheal 2 mg 63868-0876-12 | CHAIN | 12 capsules | $0.140 | — | FDA listed | +147% |
| Anti-Diarrheal 2 mg 62011-0390-01 | Strategic | 12 capsules | $0.150 | — | FDA listed | +166% |
| Anti-Diarrheal 2 mg 00363-1176-08 | WALGREENS | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 00615-8497-39 | NCS | 30 capsules | — | AB | FDA listed | — |
| Anti-Diarrheal 2 mg 11673-0177-12 | TARGET | 12 capsules | — | — | FDA listed | — |
| Anti-Diarrheal 2 mg 11822-7834-02 | Rite | 12 capsules | — | — | FDA listed | — |
| anti-diarrheal 2 mg 21130-0835-12 | Albertsons | 12 capsules | — | — | FDA listed | — |
| Anti-Diarrheal 2 mg 30142-0159-08 | KROGER | 12 capsules | — | — | FDA listed | — |
| Anti-Diarrheal 2 mg 36800-0208-12 | TOP | 12 capsules | — | — | FDA listed | — |
| Anti-Diarrheal 2 mg 37808-0988-12 | HEB | 12 capsules | — | — | FDA listed | — |
| anti-diarrheal 2 mg 41250-0210-08 | MEIJER | 12 capsules | — | — | FDA listed | — |
| First Aid Direct Anti-Diarrheal 2 mg 42961-0103-02 | Cintas | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 43063-0020-12 | PD-Rx | 12 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 43598-0770-24 | Dr. | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 48433-0063-20 | Safecor | 100 capsules | — | AB | FDA listed | — |
| Anti-Diarrheal 2 mg 49035-0483-12 | Wal-Mart | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 50090-0460-00 | A-S | 15 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 50090-7398-00 | A-S | 15 capsules | — | AB | FDA listed | — |
| Imodium A-D 2 mg 50580-0367-01 | Kenvue | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 51407-0999-01 | Golden | 100 capsules | — | AB | FDA listed | — |
| Anti-Diarrheal 2 mg 53943-0176-12 | DISCOUNT | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 55154-4699-00 | Cardinal | 10 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 55154-5585-00 | Cardinal | 10 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 55289-0315-06 | PD-Rx | 6 capsules | — | AB | FDA listed | — |
| Anti-Diarrheal 2 mg 55910-0176-08 | DOLGENCORP, | 12 capsules | — | — | FDA listed | — |
| anti-diarrheal 2 mg 56062-0680-12 | PUBLIX | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 58602-0727-74 | Aurohealth | 6 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 60468-0005-01 | allphamed | 100 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 63629-8747-01 | Bryant | 100 capsules | — | AB | FDA listed | — |
| anti-diarrheal 2 mg 63941-0684-12 | VALU | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 66267-0132-12 | NuCare | 12 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 67046-1676-03 | Coupler | 30 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 67296-2172-01 | Redpharm | 15 capsules | — | AB | FDA listed | — |
| Anti-Diarrheal 2 mg 68016-0058-12 | Premier | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 68071-2257-06 | NuCare | 6 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 68071-2700-01 | NuCare | 12 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 68071-3618-01 | NuCare | 12 capsules | — | AB | FDA listed | — |
| anti-diarrheal 2 mg 69452-0176-12 | Bionpharma | 24 capsules | — | — | FDA listed | — |
| anti-diarrheal 2 mg 69452-0266-12 | Bionpharma | 12 capsules | — | — | FDA listed | — |
| Anti-Diarrheal 2 mg 69842-0061-12 | CVS | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 70518-4283-00 | REMEDYREPACK | 30 capsules | — | AB | FDA listed | — |
| Loperamide hydrochloride 2 mg 70771-1769-01 | Zydus | 100 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 71335-1921-00 | Bryant | 50 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 71335-2061-00 | Bryant | 50 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 71335-2111-00 | Bryant | 50 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 71335-2487-00 | Bryant | 50 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 71335-2571-00 | Bryant | 50 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 71610-0648-53 | Aphena | 60 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 71610-0781-53 | Aphena | 60 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 71610-0950-30 | Aphena | 30 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 71610-0973-53 | Aphena | 60 capsules | — | AB | FDA listed | — |
| anti-diarrheal 2 mg 72288-0313-12 | Amazon.com | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 72888-0130-00 | Advagen | 1000 capsules | — | AB | FDA listed | — |
| WELMATE Anti Diarrheal Loperamide HCl Softgels 2 mg 73581-0102-24 | YYBA | 24 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 75907-0097-12 | Dr. | 12 capsules | — | — | FDA listed | — |
| Anti-Diarrheal 2 mg 80136-0851-42 | Northeast | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 55154-0277-00 | Cardinal | 10 capsules | — | AB | FDA listed | — |
| Loperamide Hydrochloride 2 mg 59556-0959-05 | Strides | 12 capsules | — | — | FDA listed | — |
| Loperamide Hydrochloride 2 mg 73581-0177-02 | YYBA | 12 capsules | — | — | 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
💊 Medicaid utilization by pack size
🔬 Reported adverse events (FAERS)
Top reported reactions
Age at onset
Reporter sex
Serious outcomes
Where does this data come from?
📦 Packaging — all sizes for this product
| Package NDC | Description | Per unit | Per pack | Marketing start | Status |
|---|---|---|---|---|---|
| 72578-0138-01 | 100 CAPSULE in 1 BOTTLE (72578-138-01) | $0.0565 / ea | $5.65 | 2023-06-25 | Active |
| 72578-0138-05 You're viewing this | 500 CAPSULE in 1 BOTTLE (72578-138-05) | $0.0565 / ea | $28.25 | 2023-06-25 | Active |
| 72578-0138-77 | 10 BLISTER PACK in 1 CARTON (72578-138-77) / 10 CAPSULE in 1 BLISTER PACK (72578-138-30) | — | — | 2023-06-25 | Active |
This pack effectively ties for the lowest per-ea cost of the 2 priced pack sizes ($0.0565 NADAC).
This pack accounts for about 39% of this product's recent Medicaid fills; most go to the 100 capsules pack. See all packs ↓
Pack size FAQ
What quantity is in NDC 72578-0138-05?
What is the difference between NDC 72578-0138-05 and NDC 72578-0138-01?
What NDC number is used to bill for this package of Loperamide hydrochloride 2 mg Capsule?
Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.
📄 Full prescribing information FDA SPL
🚨 Boxed Warning ▾
WARNING: TORSADES DE POINTES AND SUDDEN DEATH Cases of Torsades de Pointes, cardiac arrest and death have been reported with the use of a higher than recommended dosages of loperamide hydrochloride (see WARNINGS and OVERDOSAGE ). Loperamide hydrochloride is contraindicated in pediatric patients less than 2 years of age (see CONTRAINDICATIONS ). Avoid loperamide hydrochloride dosages higher than recommended in adults and pediatric patients 2 years of age and older due to the risk of serious cardiac adverse reactions (see DOSAGE AND ADMINISTRATION ).
🎯 Indications and Usage ▾
INDICATIONS AND USAGE Loperamide hydrochloride capsules are indicated for the control and symptomatic relief of acute nonspecific diarrhea in patients 2 years of age and older and of chronic diarrhea in adults associated with inflammatory bowel disease. Loperamide hydrochloride capsules are also indicated for reducing the volume of discharge from ileostomies.
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION Loperamide hydrochloride is contraindicated in pediatric patients less than 2 years of age due to the risks of respiratory depression and serious cardiac adverse reactions (see CONTRAINDICATIONS ). Avoid Loperamide hydrochloride dosages higher than recommended in adult or pediatric patients 2 years of age and older due to the risk of serious cardiac adverse reactions (See WARNINGS , OVERDOSAGE ). (1 capsule = 2 mg) Patients should receive appropriate fluid and electrolyte replacement as needed.
Acute Diarrhea Adults and Pediatric Patients 13 Years and Older The recommended initial dose is 4 mg (two capsules) followed by 2 mg (one capsule) after each unformed stool. The maximum daily dose is 16 mg (eight capsules). Clinical improvement is usually observed within 48 hours.
Pediatric Patients 2 Years to 12 Years of Age In pediatric patients 2 years to 5 years of age (20 kg or less), the non-prescription liquid formulation (Imodium A-D 1 mg/5 mL) should be used; for ages 6 to 12, either loperamide hydrochloride capsules or Imodium A-D liquid may be used. For pediatric patients 2 years to 12 years of age, the following schedule for capsules or liquid will usually fulfill initial dosage requirements: Recommended First Day Dosage Schedule Two years to five years (13 kg to 20 kg): 1 mg three times daily (3 mg total daily dosage) Six years to eight years (20 kg to 30 kg): 2 mg twice daily.
(4 mg total daily dosage) Eight years to twelve years (greater than 30kg): 2 mg three times daily (6 mg total daily dosage) Recommended Subsequent Daily Dosage Following the first treatment day, it is recommended that subsequent loperamide hydrochloride doses (1 mg/10 kg body weight) be administered only after a loose stool. The total daily dosage should not exceed recommended dosages for the first day. Chronic Diarrhea Adults The recommended initial dose is 4 mg (two capsules) followed by 2 mg (one capsule) after each unformed stool until diarrhea is controlled, after which the dosage of loperamide hydrochloride should be reduced to meet individual requirements.
When the optimal daily dosage has been established, this amount may then be administered as a single dose or in divided doses. The average daily maintenance dosage in clinical trials was 4 mg to 8 mg (two to four capsules per day). The maximum daily dosage is 16 mg (eight capsules per day).
If clinical improvement is not observed after treatment with 16 mg per day for at least 10 days, symptoms are unlikely to be controlled by further administration. Loperamide hydrochloride administration may be continued if diarrhea cannot be adequately controlled with diet or specific treatment. Elderly No formal pharmacokinetic studies were conducted in elderly subjects.
However, there were no major differences reported in the drug disposition in elderly patients with diarrhea relative to young patients. No dose adjustment is required for the elderly. In general, elderly patients may be more susceptible to drug-associated effects of the QT interval.
Avoid loperamide hydrochloride in elderly patients taking drugs that can result in prolongation of the QT interval (for example, Class IA or III antiarrhythmics) or in patients with risk factors for Torsades de Pointes (see WARNINGS ). Renal Impairment No pharmacokinetic data are available in patients with renal impairment. Since the metabolites and the unchanged drug are mainly excreted in the feces, no dosage adjustment is required for patients with renal impairment (see PRECAUTIONS ).
Hepatic Impairment The pharmacokinetics of loperamide have not been studied in patients with hepatic impairment. Use loperamide hydrochloride with caution in such patients because the systemic exposure may be increased due to reduced metabolism (see PRECAUTIONS ).
⛔ Contraindications ▾
CONTRAINDICATIONS Loperamide hydrochloride is contraindicated in: pediatric patients less than 2 years of age due to the risks of respiratory depression and serious cardiac adverse reactions (see WARNINGS ). patients with a known hypersensitivity to loperamide hydrochloride or to any of the excipients. patients with abdominal pain in the absence of diarrhea. patients with acute dysentery, which is characterized by blood in stools and high fever. patients with acute ulcerative colitis. patients with bacterial enterocolitis caused by invasive organisms including Salmonella , Shigella and Campylobacter . patients with pseudomembranous colitis (e.g., Clostridium difficle ) associated with the use of broad-spectrum antibiotics.
⚠️ Warnings ▾
WARNINGS Cardiac Adverse Reactions, Including Torsades de Pointes and Sudden Death Cases of prolongation of the QT/QTc interval, Torsades de Pointes, other ventricular arrhythmias, cardiac arrest, some resulting in death, have been reported in adults with use of higher than recommended doses per day of loperamide hydrochloride. Cases include patients who were abusing or misusing loperamide hydrochloride (see OVERDOSAGE and DRUG ABUSE AND DEPENDENCE ). Cases of syncope and ventricular tachycardia have been reported in adult patients receiving the recommended dosage of loperamide hydrochloride.
Some of these patients were taking other drugs or had other risk factors that may have increased their risk of cardiac adverse reactions. Additionally, postmarketing cases of cardiac arrest, syncope and respiratory depression have been reported in pediatric patients less than 2 years of age. Loperamide hydrochloride is contraindicated in pediatric patients less than 2 years of age due to the risks of respiratory depression and serious cardiac adverse reactions.
Avoid loperamide hydrochloride dosages higher than recommended in adults and pediatric patients 2 years of age and older due to the risk of serious cardiac adverse reactions (see DOSAGE AND ADMINISTRATION , OVERDOSAGE ) Avoid Loperamide Hydrochloride in: combination with others drugs or herbal products that are known to prolong the QT interval, including Class 1A (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmics, antipsychotics (e.g., chlorpromazine, haloperidol, thioridazine, ziprasidone), antibiotics (e.g., moxifloxacin) or any other drug known to prolong the QT interval (e.g., pentamidine, levomethadyl acetate, methadone) patients with risk factors for QT prolongation, including patients with congenital long QT syndrome, with a history of cardiac arrhythmias or other cardiac conditions, elderly patients and those with electrolyte abnormalities.
Dehydration Fluid and electrolyte depletion often occur in patients who have diarrhea. In such cases, administration of appropriate fluid and electrolytes is very important. The use of loperamide hydrochloride does not preclude the need for appropriate fluid and electrolyte therapy.
Gastrointestinal Disorders In general, loperamide hydrochloride should not be used when inhibition of peristalsis is to be avoided due to the possible risk of significant sequelae including ileus, megacolon and toxic megacolon. Loperamide hydrochloride must be discontinued promptly when constipation, abdominal distention or ileus develop. Treatment of diarrhea with loperamide hydrochloride is only symptomatic.
Whenever an underlying etiology can be determined, specific treatment should be given when appropriate (or when indicated). Patients with AIDS treated with loperamide hydrochloride for diarrhea should have therapy stopped at the earliest signs of abdominal distention. There have been isolated reports of toxic megacolon in AIDS patients with infectious colitis from both viral and bacterial pathogens treated with loperamide hydrochloride.
Variability in Pediatric Response Loperamide hydrochloride should be used with special caution in pediatric patients because of the greater variability of response in this age group. Dehydration, particularly in pediatric patients less than 6 years of age, may further influence the variability of response to loperamide hydrochloride. Loperamide hydrochloride is contraindicated in pediatric patients less than 2 years of age due to the risks of respiratory depression and serious cardiac adverse reactions.
🤒 Adverse Reactions ▾
ADVERSE REACTIONS Clinical Trial Experience The adverse effects reported during clinical investigations of loperamide hydrochloride are difficult to distinguish from symptoms associated with the diarrheal syndrome. Adverse experiences recorded during clinical studies with loperamide hydrochloride were generally of a minor and self-limiting nature. They were more commonly observed during the treatment of chronic diarrhea.
The adverse events reported are summarized irrespective of the causality assessment of the investigators. 1) Adverse events from 4 placebo-controlled studies in patients with acute diarrhea The adverse events with an incidence of 1% or greater, which were reported at least as often in patients on loperamide hydrochloride as on placebo, are presented in the table below. Acute Diarrhea Loperamide Hydrochloride Placebo No. of treated patients 231 236 Gastrointestinal AE% Constipation 2.6% 0.8% The adverse events with an incidence of 1% or greater, which were more frequently reported in patients on placebo than on loperamide hydrochloride, were: dry mouth, flatulence, abdominal cramp and colic.
2) Adverse events from 20 placebo-controlled studies in patients with chronic diarrhea The adverse events with an incidence of 1% or greater, which were reported at least as often in patients on loperamide hydrochloride as on placebo, are presented below in the table below. Chronic Diarrhea Loperamide Hydrochloride Placebo No. of treated patients 285 277 Gastrointestinal AE% Constipation 5.3% 0% Central and peripheral nervous system AE% Dizziness 1.4% 0.7% The adverse events with an incidence of 1% or greater, which were more frequently reported in patients on placebo than on loperamide hydrochloride were: nausea, vomiting, headache, meteorism, abdominal pain, abdominal cramp and colic.
3) Adverse events from seventy-six controlled and uncontrolled studies in patients with acute or chronic diarrhea The adverse events with an incidence of 1% or greater in patients from all studies are given in the table below. a. All patients in all studies, including those in which it was not specified if the adverse events occurred in patients with acute or chronic diarrhea. Acute Diarrhea Chronic Diarrhea All Studies a No. of treated patients 1,913 1,371 3,740 Gastrointestinal AE% Nausea Constipation Abdominal cramps 0.7% 1.6% 0.5% 3.2% 1.9% 3% 1.8% 1.7% 1.4% Postmarketing Experience The following adverse events have been reported: Cardiac disorders QT/QTc interval prolongation, Torsades de Pointes, other ventricular arrhythmias, cardiac arrest, syncope and death (see WARNINGS , OVERDOSAGE ).
Skin and subcutaneous tissue disorders Rash, pruritus, urticaria and angioedema and extremely rare cases bullous eruption including erythema multiforme, Stevens-Johnson syndrome and Toxic Epidermal Necrolysis have been reported with use of loperamide hydrochloride. Immune system disorders Isolated occurrences of allergic reactions and in some cases severe hypersensitivity reactions including anaphylactic shock and anaphylactoid reactions have been reported with the use of loperamide hydrochloride. Gastrointestinal disorders Dry mouth, abdominal pain, distention or discomfort, nausea, vomiting, flatulence, dyspepsia, constipation, paralytic ileus, megacolon; including toxic megacolon (see CONTRAINDICATIONS , WARNINGS ).
Renal and urinary disorders Urinary retention Nervous system disorders Drowsiness, dizziness General disorders and administrative site conditions Tiredness A number of the adverse events reported during the clinical investigations and post-marketing experience with loperamide are frequent symptoms of the underlying diarrheal syndrome (abdominal pain/discomfort, nausea, vomiting, dry mouth, tiredness, drowsiness, dizziness, constipation and flatulence). These symptoms are often difficult to distinguish from undesirable drug effects.
You may report side effects to Viona Pharmaceuticals Inc. at 1-888-304-5011 or FDA at 1-800-FDA-1088.
🆘 Overdosage ▾
OVERDOSAGE The use of higher than recommended loperamide hydrochloride doses may result in life-threatening cardiac, CNS and respiratory adverse reactions. If over-exposure occurs, call your Poison Control Center at 1-800-222-1222 for current information on the management of poisoning or overdosage. Cardiac Effects Symptoms Cases of overdosage with loperamide hydrochloride (chronic ingestion of doses ranging from 70 mg to 1,600 mg daily; 4 times to 100 times the recommended dose) have resulted in life-threatening cardiac adverse reactions, including QT/QTc and QRS interval prolongation, Torsades de Pointes, Brugada syndrome and other ventricular arrhythmias, syncope, cardiac arrest and death.
Cases include patients who were abusing (using supratherapeutic doses in place of opioids to induce euphoria) or misusing (taking higher than recommended doses to control diarrhea or to prevent opioid withdrawal) loperamide. The following are representative cases that included cardiac adverse reactions: 25 year old abused loperamide and presented to the hospital on multiple occasions with symptoms of syncope, nausea, vomiting, bradycardia, hypotensive shock. The patient also experienced ventricular tachycardia, a prolonged QTc of 527 ms and QRS interval of 170 ms, frequent premature ventricular contractions and subsequent cardiac arrest and death (elevated loperamide blood concentration of 32 ng/ml).
54 year old misused loperamide hydrochloride (up to 144 mg per day) as a self- treatment for chronic diarrhea for over 2 years. Signs of cardiac toxicity included syncope, prolonged QT of 500 ms sinus arrest with junctional escape rhythm and polymorphic ventricular tachycardia, which required cardioversion and implantable cardioverter-defibrillator (ICD) management. 26 year old, with prior opioid abuse, presented to the hospital with recurrent syncope and developed Torsades de Pointes requiring electrical cardioversion.
An ECG revealed a sinus rhythm with a heart rate of 85 bpm and a markedly prolonged QTc interval of greater than 700 ms. The patient reported ingesting 100 mg to 250 mg of loperamide hydrochloride with 400 mg of cimetidine daily for several months to simulate the euphoric sensation associated with opioids. Management Consider loperamide as a possible cause of cardiac arrhythmias in patients who may have a history of opioid abuse or recent ingestion of unknown drugs and in the differential diagnosis of unstable arrhythmias, prolonged QTc or QRS intervals and Torsades de Pointes.
If loperamide-induced cardiac toxicity is suspected, promptly discontinue the drug and initiate therapy to manage and prevent cardiac arrhythmias and serious outcomes. In many cases of loperamide overdosage, anti-arrhythmic medications (e.g., magnesium sulfate) were ineffective in resolving the arrhythmias and preventing further episodes of Torsades de Pointes. Electrical cardioversion and overdrive pacing and isoproterenol continuous infusion were reported to manage QTc prolongation in the setting of overdose.
Laboratory Testing Loperamide serum concentrations are not widely available or clinically useful to guide patient management. CNS and Respiratory Depression Symptoms Cases of loperamide overdose (including relative overdose due to hepatic dysfunction), may cause opioid toxic effects including CNS depression (e.g. altered mental status, stupor, coordination disorders, somnolence, miosis, muscular hypertonia, respiratory depression), hypotension, urinary retention and paralytic ileus. Pediatric patients may be more sensitive to CNS effects, including respiratory depression, than adults.
Management Loperamide non-cardiac arrhythmia overdosages should be treated as opioid overdosages. Naloxone may reverse the opioid-related toxicity, including CNS and respiratory depression and hypotension, associated with loperamide overdosage. In adults and pediatric patients, naloxone may be administered intravenously.
Appropriate doses of naloxone, via intranasal…
🧬 Clinical Pharmacology ▾
CLINICAL PHARMACOLOGY Mechanism of Action In vitro and animal studies show that loperamide hydrochloride acts by slowing intestinal motility and by affecting water and electrolyte movement through the bowel. Loperamide binds to the opiate receptor in the gut wall. Consequently, it inhibits the release of acetylcholine and prostaglandins, thereby reducing propulsive peristalsis and increasing intestinal transit time.
Loperamide increases the tone of the anal sphincter, thereby reducing incontinence and urgency. Pharmacodynamics Loperamide prolongs the transit time of the intestinal contents. It reduces daily fecal volume, increases the viscosity and bulk density and diminishes the loss of fluid and electrolytes.
Tolerance to the antidiarrheal effect has not been observed. Pharmacokinetics Absorption Plasma concentrations of unchanged drug remain below 2 ng/mL after the intake of a 2 mg capsule of loperamide hydrochloride. Plasma loperamide concentrations are highest approximately 5 hours after administration of the capsule and 2.5 hours after the liquid.
The peak plasma concentrations of loperamide were similar for both formulations. Distribution Based on literature information, the plasma protein binding of loperamide is about 95%. Loperamide is a P-glycoprotein substrate.
Elimination The apparent elimination half-life of loperamide is 10.8 hours with a range of 9.1 hours to 14.4 hours. Elimination of loperamide mainly occurs by oxidative N-demethylation. Metabolism In vitro loperamide is metabolized mainly by cytochrome P450 (CYP450) isozymes, CYP2C8 and CYP3A4, to form- N-demethyl loperamide.
In an in vitro study quercetin (CYP2C8 inhibitor) and ketoconazole (CYP3A4 inhibitor) significantly inhibited the N-demethylation process by 40% and 90%, respectively. In addition, CYP2B6 and CYP2D6 appear to play a minor role in loperamide N-demethylation. Concomitant use of loperamide hydrochloride with inhibitors of CYP3A4 (e.g., itraconazole) or CYP2C8 (e.g., gemfibrozil) or inhibitors of P-glycoprotein (e.g., quinidine, ritonavir) can increase exposure to loperamide (see PRECAUTIONS, Drug Interactions ).
Excretion Excretion of the unchanged loperamide and its metabolites mainly occurs through the feces.
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED Loperamide hydrochloride capsules USP, 2 mg are white to off-white colored granular powder filled in size '3' hard gelatin capsule with cream opaque cap and cream opaque body printed with 1701 in black ink and are supplies as follows: NDC 72578-138-01 in bottle of 100 capsules with child resistant closure NDC 72578-138-05 in bottle of 500 capsules NDC 72578-138-77 in unit-dose blister cartons of 100 capsules (10 x 10 unit-dose) Store at 20°C to 25°C (68ºF to 77°F); excursions permitted between 15°C to 30°C (59°F to 86°F) [See USP Controlled Room Temperature].
Dispense in a tight, light-resistant container as defined in the USP using a child-resistant closure. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Please address medical inquiries to, [email protected] or Tel.: 1-888-304-5011. Trademarks listed are property of their respective owners. Manufactured by: Zydus Lifesciences Ltd.
Ahmedabad, India Distributed by: Viona Pharmaceuticals Inc. Cranford, NJ 07016 Rev: 04/23
📋 Description ▾
DESCRIPTION Loperamide hydrochloride USP, 4-(p-chlorophenyl)-4-hydroxy-N,N-dimethyl- a,a- diphenyl-1-piperidinebutyramide monohydrochloride, is a synthetic antidiarrheal for oral use. Loperamide hydrochloride is available in 2 mg capsules. Loperamide hydrochloride capsules, USP contain the following inactive ingredients: colloidal silicon dioxide, lactose monohydrate, magnesium stearate microcrystalline cellulose, povidone k-30 and sodium starch glycolate.
The capsule shell contains gelatin, iron oxide black, iron oxide red, iron oxide yellow, sodium lauryl sulfate, titanium dioxide and water. The capsule shell is imprinted with black ink and contains following inactive ingredients: black iron oxide, potassium hydroxide and shellac. Image