NDC 0025-0061 Lomotil

Diphenoxylate Hydrochloride And Atropine Sulfate

NDC Product Code 0025-0061

NDC CODE: 0025-0061

Proprietary Name: Lomotil What is the Proprietary Name?
The proprietary name also known as the trade name is the name of the product chosen by the medication labeler for marketing purposes.

Non-Proprietary Name: Diphenoxylate Hydrochloride And Atropine Sulfate What is the Non-Proprietary Name?
The non-proprietary name is sometimes called the generic name. The generic name usually includes the active ingredient(s) of the product.

Drug Use Information

Drug Use Information
The drug use information is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate. This information is not individual medical advice and does not substitute for the advice of a health care professional. Always ask a health care professional for complete information about this product and your specific health needs.

  • This medication is used to treat diarrhea. It helps to decrease the number and frequency of bowel movements. It works by slowing the movement of the intestines. Diphenoxylate is similar to opioid pain relievers, but it acts mainly to slow the gut. Atropine belongs to a class of drugs known as anticholinergics, which help to dry up body fluids and also slow gut movement. This medication should not be used to treat diarrhea caused by certain types of infection (such as C. difficile-associated diarrhea following antibiotic therapy). Talk to your doctor for more details. This medication is not recommended for use in children younger than 6 years due to an increased risk of serious side effects (such as breathing problems).

Product Characteristics

WHITE (C48325)
Shape: ROUND (C48348)
6 MM
Score: 1

NDC Code Structure

  • 0025 - Pfizer Laboratories Div Pfizer Inc

NDC 0025-0061-31

Package Description: 100 TABLET in 1 BOTTLE

Price per Unit: $2.76161 per EA

NDC Product Information

Lomotil with NDC 0025-0061 is a a human prescription drug product labeled by Pfizer Laboratories Div Pfizer Inc. The generic name of Lomotil is diphenoxylate hydrochloride and atropine sulfate. The product's dosage form is tablet and is administered via oral form. The RxNorm Crosswalk for this NDC code indicates multiple RxCUI concepts are associated to this product: 1190572 and 1190641.

Dosage Form: Tablet - A solid dosage form containing medicinal substances with or without suitable diluents.

Product Type: Human Prescription Drug What kind of product is this?
Indicates the type of product, such as Human Prescription Drug or Human Over the Counter Drug. This data element matches the “Document Type” field of the Structured Product Listing.

DEA Schedule: Schedule V (CV) Substances What is the Drug Enforcement Administration (DEA) CV Schedule?
The controlled substances in the CV schedule have an abuse potential and dependence liability less than those listed in CIV and have an accepted medical use in the United States. Substances in schedule CV are often available without prescription, and include preparations containing limited quantities of certain narcotic drugs generally for antitussive and antidiarrheal purposes. Buprenorphine is also a CV schedule drug.

Lomotil Active Ingredient(s)

What is the Active Ingredient(s) List?
This is the active ingredient list. Each ingredient name is the preferred term of the UNII code submitted.

Inactive Ingredient(s)

About the Inactive Ingredient(s)
The inactive ingredients are all the component of a medicinal product OTHER than the active ingredient(s). The acronym "UNII" stands for “Unique Ingredient Identifier” and is used to identify each inactive ingredient present in a product.

  • ACACIA (UNII: 5C5403N26O)
  • SORBITOL (UNII: 506T60A25R)
  • SUCROSE (UNII: C151H8M554)

Administration Route(s)

What are the Administration Route(s)?
The translation of the route code submitted by the firm, indicating route of administration.

  • Oral - Administration to or by way of the mouth.

Pharmacological Class(es)

What is a Pharmacological Class?
These are the reported pharmacological class categories corresponding to the SubstanceNames listed above.

  • Anticholinergic - [EPC] (Established Pharmacologic Class)
  • Antidiarrheal - [EPC] (Established Pharmacologic Class)
  • Cholinergic Antagonists - [MoA] (Mechanism of Action)
  • Cholinergic Muscarinic Antagonist - [EPC] (Established Pharmacologic Class)
  • Cholinergic Muscarinic Antagonists - [MoA] (Mechanism of Action)

Product Labeler Information

What is the Labeler Name?
Name of Company corresponding to the labeler code segment of the Product NDC.

Labeler Name: Pfizer Laboratories Div Pfizer Inc
Labeler Code: 0025
FDA Application Number: NDA012462 What is the FDA Application Number?
This corresponds to the NDA, ANDA, or BLA number reported by the labeler for products which have the corresponding Marketing Category designated. If the designated Marketing Category is OTC Monograph Final or OTC Monograph Not Final, then the Application number will be the CFR citation corresponding to the appropriate Monograph (e.g. “part 341”). For unapproved drugs, this field will be null.

Marketing Category: NDA - A product marketed under an approved New Drug Application. What is the Marketing Category?
Product types are broken down into several potential Marketing Categories, such as NDA/ANDA/BLA, OTC Monograph, or Unapproved Drug. One and only one Marketing Category may be chosen for a product, not all marketing categories are available to all product types. Currently, only final marketed product categories are included. The complete list of codes and translations can be found at www.fda.gov/edrls under Structured Product Labeling Resources.

Start Marketing Date: 09-15-1960 What is the Start Marketing Date?
This is the date that the labeler indicates was the start of its marketing of the drug product.

Listing Expiration Date: 12-31-2023 What is the Listing Expiration Date?
This is the date when the listing record will expire if not updated or certified by the product labeler.

Exclude Flag: N - NO What is the NDC Exclude Flag?
This field indicates whether the product has been removed/excluded from the NDC Directory for failure to respond to FDA"s requests for correction to deficient or non-compliant submissions ("Y"), or because the listing certification is expired ("E"), or because the listing data was inactivated by FDA ("I"). Values = "Y", "N", "E", or "I".

* Please review the disclaimer below.

Information for Patients


Diphenoxylate is pronounced as (dye fen ox' i late)

Why is diphenoxylate medication prescribed?
Diphenoxylate is used along with other measures, such as replacement of lost fluids and salts in the body, to treat diarrhea. Diphenoxylate should not be given to childre...
[Read More]

* Please review the disclaimer below.

Lomotil Product Labeling Information

The product labeling information includes all published material associated to a drug. Product labeling documents include information like generic names, active ingredients, ingredient strength dosage, routes of administration, appearance, usage, warnings, inactive ingredients, etc.

Product Labeling Index


Each Lomotil tablet contains:2.5 mg of diphenoxylate hydrochloride USP (equivalent to 2.3 mg of diphenoxylate) and 0.025 mg of atropine sulfate USP (equivalent to 0.01 mg of atropine)Diphenoxylate hydrochloride, an antidiarrheal, is ethyl 1-(3-cyano-3,3-diphenylpropyl)-4-phenylisonipecotate monohydrochloride and has the following structural formula:Atropine sulfate, an anticholinergic, is endo-(±)-α-(hydroxymethyl) benzeneacetic acid 8-methyl-8-azabicyclo[3.2.1] oct-3-yl ester sulfate (2:1) (salt) monohydrate and has the following structural formula:A subtherapeutic amount of atropine sulfate is present to discourage deliberate overdosage.Inactive ingredients of Lomotil tablets include acacia, corn starch, magnesium stearate, sorbitol, sucrose, and talc.

Clinical Pharmacology

Diphenoxylate is rapidly and extensively metabolized in man by ester hydrolysis to diphenoxylic acid (difenoxine), which is biologically active and the major metabolite in the blood. After a 5-mg oral dose of carbon-14 labeled diphenoxylate hydrochloride in ethanolic solution was given to three healthy volunteers, an average of 14% of the drug plus its metabolites was excreted in the urine and 49% in the feces over a four-day period. Urinary excretion of the unmetabolized drug constituted less than 1% of the dose, and diphenoxylic acid plus its glucuronide conjugate constituted about 6% of the dose. In a 16-subject crossover bioavailability study, a linear relationship in the dose range of 2.5 to 10 mg was found between the dose of diphenoxylate hydrochloride (given as Lomotil liquid) and the peak plasma concentration, the area under the plasma concentration-time curve, and the amount of diphenoxylic acid excreted in the urine. In the same study the bioavailability of the tablet compared with an equal dose of the liquid was approximately 90%. The average peak plasma concentration of diphenoxylic acid following ingestion of four 2.5-mg tablets was 163 ng/ml at about 2 hours, and the elimination half-life of diphenoxylic acid was approximately 12 to 14 hours.In dogs, diphenoxylate hydrochloride has a direct effect on circular smooth muscle of the bowel that conceivably results in segmentation and prolongation of gastrointestinal transit time. The clinical antidiarrheal action of diphenoxylate hydrochloride may thus be a consequence of enhanced segmentation that allows increased contact of the intraluminal contents with the intestinal mucosa.

Indications And Usage

Lomotil is indicated as adjunctive therapy in the management of diarrhea in patients 13 years of age and older.


  • Lomotil is contraindicated in:Pediatric patients less than 6 years of age due to the risks of respiratory and central nervous system (CNS) depression (see WARNINGS).Patients with diarrhea associated with pseudomembranous enterocolitis (Clostridium difficile) or other enterotoxin-producing bacteria due to the risk of gastrointestinal (GI) complications, including sepsis (see WARNINGS).Patients with known hypersensitivity to diphenoxylate or atropine.Patients with obstructive jaundice.

Respiratory And/Or Cns Depression In Pediatric Patients Less Than 6 Years Of Age

Cases of severe respiratory depression and coma, leading to permanent brain damage or death have been reported in patients less than 6 years of age who received Lomotil. Lomotil is contraindicated in patients less than 6 years of age due to these risks (see CONTRAINDICATIONS).

Anticholinergic And Opioid-Toxicities

Toxicities associated with the atropine and diphenoxylate components of Lomotil have been reported. The initial presenting symptoms may be delayed by up to 30 hours due to prolonged gastric emptying time induced by diphenoxylate hydrochloride. Clinical presentations vary in terms of which toxicity (anticholinergic vs. opioid) will present first or predominate; non-specific findings have been reported and include symptoms such as drowsiness (see OVERDOSAGE).

Dehydration And Electrolyte Imbalance

The use of Lomotil should be accompanied by appropriate fluid and electrolyte therapy, when indicated. If severe dehydration or electrolyte imbalance is present, Lomotil should be withheld until appropriate corrective therapy has been initiated. Drug-induced inhibition of peristalsis may result in fluid retention in the intestine, which may further aggravate dehydration and electrolyte imbalance.

Gastrointestinal Complications In Patients With Infectious Diarrhea

Lomotil is contraindicated in patients with diarrhea associated with organisms that penetrate the GI mucosa (toxigenic E. coli, Salmonella, Shigella), and pseudomembranous enterocolitis (Clostridium difficile) associated with broad-spectrum antibiotics (see CONTRAINDICATIONS). Antiperistaltic agents, including Lomotil, slow gastrointestinal motility and may enhance bacterial overgrowth and the release of bacterial exotoxins. Lomotil has been reported to result in serious GI complications in patients with infectious diarrhea, including sepsis, prolonged and/or worsened diarrhea. Prolonged fever and the delay in the resolution of stool pathogens were reported in study of Shigellosis in adults who used Lomotil vs. placebo.

Toxic Megacolon In Patients With Acute Ulcerative Colitis

In some patients with acute ulcerative colitis, agents that inhibit intestinal motility or prolong intestinal transit time have been reported to induce toxic megacolon. Consequently, patients with acute ulcerative colitis should be carefully observed and Lomotil therapy should be discontinued promptly if abdominal distention occurs or if other untoward symptoms develop.

Interaction With Meperidine Hydrocholoride

Since the chemical structure of diphenoxylate hydrochloride is similar to that of meperidine hydrochloride, the concurrent use of Lomotil with monoamine oxidase (MAO) inhibitors may, in theory, precipitate hypertensive crisis.

Hepatorenal Disease

Lomotil should be used with extreme caution in patients with advanced hepatorenal disease and in all patients with abnormal liver function since hepatic coma may be precipitated.

Interaction With Cns Depressants

Diphenoxylate hydrochloride may potentiate the action of other drugs that cause dizziness or drowsiness, including barbiturates, benzodiazepines and other sedatives/hypnotics, anxiolytics, and tranquilizers, muscle relaxants, general anesthetics, antipsychotics, other opioids, and alcohol. Therefore, the patient should be closely observed when any of these are used concomitantly.


Since a subtherapeutic dose of atropine has been added to Lomotil, consideration should be given to the development of adverse reactions associated with of atropine (see WARNINGS).Lomotil has caused atropinism (hyperthermia, tachycardia, urinary retention, flushing, dryness of the skin and mucous membranes) particularly in pediatric patients with Down's syndrome. Lomotil is not indicated for use in pediatric patients (see CONTRAINDICATIONS and WARNINGS). Monitor patients for signs of atropinism.

Information For Patients

  • Advise patients:Accidental ingestion of Lomotil in children, especially in those less than 6 years of age, may result in severe respiratory depression or coma. Instruct patients to take steps to store Lomotil securely and out of reach of children, and to dispose of unused Lomotil (see WARNINGS).To take Lomotil at the prescribed dosage. Use of a higher than prescribed dosage may include opioid and/or anticholinergic effects (see OVERDOSAGE). Report to a healthcare facility if they develop anticholinergic symptoms such as hyperthermia, flushing, tachycardia, tachypnea, hypotonia, lethargy, hallucinations, febrile convulsion, dry mouth, mydriasis or opioid symptoms such as progressive CNS and respiratory depression, miosis, seizures, or paralytic ileus.Lomotil may produce drowsiness or dizziness. Concomitant use of alcohol or other drugs that also cause CNS depression (e.g., barbiturates, benzodiazepines, opioids, buspirone, antihistamines, and muscle relaxants) may increase this effect. Inform patients not to operate motor vehicles or other dangerous machinery until they are reasonably certain that Lomotil does not affect them adversely.To use fluid and electrolyte therapy, if prescribed along with Lomotil, as instructed by their healthcare provider.Clinical improvement of diarrhea is usually observed within 48 hours. If clinical improvement is not seen within 10 days, discontinue Lomotil and contact their healthcare provider.


Alcohol may increase the CNS depressant effects of Lomotil and may cause drowsiness (see WARNINGS). Avoid concomitant use of Lomotil with alcohol.

Other Drugs That Cause Cns Depression

The concurrent use of Lomotil with other drugs that cause CNS depression (e.g., barbiturates, benzodiazepines, opioids, buspirone, antihistamines, muscle relaxants), may potentiate the effects of Lomotil (see WARNINGS). Either Lomotil or the other interacting drug should be chosen, depending on the importance of the drug to the patient. If CNS-acting drugs cannot be avoided, monitor patients for CNS adverse reactions.

Mao Inhibitors

Diphenoxylate may interact with monoamine oxidase inhibitors (MAOIs) and precipitate a hypertensive crisis. Avoid use of Lomotil in patients who take MAOIs and monitor for signs and symptoms of hypertensive crisis (headache, hyperthermia, hypertension).

Carcinogenesis, Mutagenesis, Impairment Of Fertility

No long-term study in animals has been performed to evaluate carcinogenic potential. Diphenoxylate hydrochloride was administered to male and female rats in their diets to provide dose levels of 4 and 20 mg/kg/day throughout a three-litter reproduction study. At 50 times the human dose (20 mg/kg/day), female weight gain was reduced and there was a marked effect on fertility as only 4 of 27 females became pregnant in three test breedings. The relevance of this finding to usage of Lomotil in humans is unknown.


Diphenoxylate hydrochloride has been shown to have an effect on fertility in rats when given in doses 50 times the human dose (see above discussion). Other findings in this study include a decrease in maternal weight gain of 30% at 20 mg/kg/day and of 10% at 4 mg/kg/day. At 10 times the human dose (4 mg/kg/day), average litter size was slightly reduced.Teratology studies were conducted in rats, rabbits, and mice with diphenoxylate hydrochloride at oral doses of 0.4 to 20 mg/kg/day. Due to experimental design and small numbers of litters, embryotoxic, fetotoxic, or teratogenic effects cannot be adequately assessed. However, examination of the available fetuses did not reveal any indication of teratogenicity.There are no adequate and well-controlled studies in pregnant women. Lomotil should be used during pregnancy only if the anticipated benefit justifies the potential risk to the fetus.

Nursing Mothers

Caution should be exercised when Lomotil is administered to a nursing woman, since the physicochemical characteristics of the major metabolite, diphenoxylic acid, are such that it may be excreted in breast milk and since it is known that atropine is excreted in breast milk.

Pediatric Use

The safety and effectiveness of Lomotil have been established in pediatric patients 13 years of age and older as adjunctive therapy in the management of diarrhea. The safety and effectiveness of Lomotil have not been established in pediatric patients less than 13 years of age. Lomotil is contraindicated in pediatric patients less than 6 years of age due to the risks of severe respiratory depression and coma, possibly resulting in permanent brain damage or death (see CONTRAINDICATIONS).Lomotil has caused atropinism, particularly in pediatric patients with Down's syndrome (see PRECAUTIONS).In case of accidental ingestion of Lomotil by pediatric patients, see OVERDOSAGE for recommended treatment.

Adverse Reactions

  • The following serious adverse reactions are described elsewhere in labeling:Respiratory and/or CNS depression (see WARNINGS)Anticholinergic and opioid-toxicities, including atroponism (see WARNINGS and PRECAUTIONS)Dehydration and electrolyte imbalance (see WARNINGS)GI Complications in patients with infectious diarrhea (see WARNINGS)Toxic megacolon in patients with acute ulcerative colitis (see WARNINGS)At therapeutic doses of Lomotil, the following other adverse reactions have been reported; they are listed in decreasing order of severity, but not of frequency:Nervous system: numbness of extremities, euphoria, depression, malaise/lethargy, confusion, sedation/drowsiness, dizziness, restlessness, headache, hallucinationAllergic: anaphylaxis, angioneurotic edema, urticaria, swelling of the gums, pruritusGastrointestinal system: megacolon, paralytic ileus, pancreatitis, vomiting, nausea, anorexia, abdominal discomfortThe following adverse reactions related to atropine sulfate are listed in decreasing order of severity, but not of frequency: hyperthermia, tachycardia, urinary retention, flushing, dryness of the skin and mucous membranes.

Controlled Substance

Lomotil is classified as a Schedule V controlled substance by federal regulation. Diphenoxylate hydrochloride is chemically related to the narcotic analgesic meperidine.


In doses used for the treatment of diarrhea, whether acute or chronic, diphenoxylate has not produced addiction.Diphenoxylate hydrochloride is devoid of morphine-like subjective effects at therapeutic doses. At high doses it exhibits codeine-like subjective effects. The dose which produces antidiarrheal action is widely separated from the dose which causes central nervous system effects. The insolubility of diphenoxylate hydrochloride in commonly available aqueous media precludes intravenous self-administration. A dose of 100 to 300 mg/day, which is equivalent to 40 to 120 tablets, administered to humans for 40 to 70 days, produced opiate withdrawal symptoms. Since addiction to diphenoxylate hydrochloride is possible at high doses, the recommended dosage should not be exceeded.


Overdosage can be life-threatening. Symptoms of overdosage may include opioid and/or anticholinergic effects including respiratory depression, coma, delirium, lethargy, dryness of the skin and mucous membranes, mydriasis or miosis, flushing, hyperthermia, tachycardia, hypotonia, tachypnea, toxic encephalopathy, seizures and incoherent speech.Respiratory depression has been reported up to 30 hours after ingestion and may recur despite an initial response to narcotic antagonists.Treat all possible Lomotil overdosages as serious and maintain medical observation/hospitalization until patients become asymptomatic without naloxone use.


A pure narcotic antagonist (e.g., naloxone) should be used in the treatment of respiratory depression caused by Lomotil. Refer to the prescribing information for naloxone. Consider Lomotil toxicity even in settings of negative toxicology tests.Following initial improvement of respiratory function, repeated doses of naloxone hydrochloride may be required to counteract recurrent respiratory depression.If over-exposure occurs, call your Poison Control Center at 1-800-222-1222 for current information on the management of poisoning or overdosage.

Management Of Diarrhea In Patients 13 Years Of Age And Older

Lomotil is recommended as adjunctive therapy for the management of diarrhea in patients 13 years of age and older. Consider the nutritional status and degree of dehydration in patients prior to initiating therapy with Lomotil. The use of Lomotil should be accompanied by appropriate fluid and electrolyte therapy, when indicated. If severe dehydration or electrolyte imbalance is present, do not administer Lomotil until appropriate corrective therapy has been indicated (see WARNINGS).

The initial adult dosage is 2 Lomotil tablets four times daily (maximum total daily dose of 20 mg per day of diphenoxylate hydrochloride). Most patients will require this dosage until initial control of diarrhea has been achieved. Clinical improvement of acute diarrhea is usually observed within 48 hours.

Dosage After Initial Control Of Diarrhea

After initial control has been achieved, the Lomotil dosage may be reduced to meet individual requirements. Control may often be maintained with as little as two Lomotil tablets daily.

Duration Of Treatment

If clinical improvement of chronic diarrhea after treatment with the maximum recommended daily dosage is not observed within 10 days, discontinue Lomotil as symptoms are unlikely to be controlled by further administration.

How Supplied

Tablets — round, white, with SEARLE debossed on one side and 61 on the other side and containing 2.5 mg of diphenoxylate hydrochloride and 0.025 mg of atropine sulfate, supplied as:NDC NumberSize0025-0061-31bottle of 100

Storage And Handling

Store below 25°C (77°F).


This product's label may have been updated. For current full prescribing information, please visit www.pfizer.com.LAB-0065-4.0February 2018

* Please review the disclaimer below.