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Chlordiazepoxide and Amitriptyline Hydrochloride 5 mg; 12.5 mg Tablet, 100-count — NDC 42571-302-01 (Billing 42571-0302-01)

by Micro Labs Limited · 100 TABLET in 1 BOTTLE

This is a package of 100 tablets of Chlordiazepoxide and Amitriptyline Hydrochloride 5 mg; 12.5 mg Tablet from Micro Labs Limited, no longer marketed (first marketed Apr 2022), no longer in the FDA NDC Directory. It is the main listing for this product, which comes in 2 package sizes.

NDC 42571-0302-01
🏷️ FDA NDC (as labeled) 42571-302-01 billing pads the product segment with a zero
This package
Contains100-count Pack sizes2 compare ↓
Main listing for product 42571-302 · Also comes in: 500 tablets 42571-302-05
Rx only Generic Discontinued CIV ⚠ Discontinued by firm ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 1, 2026 · this listing last changed Jul 27, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

NDC database record

One package, one record: these facts belong to NDC 42571-302-01 alone.

Record
FDA NDC Directory package listing · Human prescription drug
Code segments
42571 labeler · 302 product · 01 package
Package marketed since
Apr 1, 2022
Sample package
No — commercial package
Listing certified through
Dec 31, 2026
Barcode (UPC)
0342571302016, 0342571303013
FDA record last changed
Jul 27, 2026
⚠️
Excluded from the active FDA NDC Directory. The labeler reported this product as discontinued, so it is excluded from the active NDC Directory. The listing was last certified through Aug 2026. A label may still appear on DailyMed, but the NDC is no longer in the current FDA NDC Directory. Search the FDA NDC Directory ↗

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 42571-302-01
Product NDC 42571-302
11-digit billing NDC 42571030201
UNII 26LUD4JO9K, 6RZ6XEZ3CR
UPC 0342571302016, 0342571303013
Application # ANDA211925
SPL Set ID b20dcdb1-50f4-4d49-a50e-be0308962f5b
Established class (EPC) Benzodiazepine
Chemical class Benzodiazepines
DEA schedule CIV
Marketing category ANDA
Marketing status Discontinued
FDA listing status Discontinued by firm (certified through Aug 2026)
Marketing start 2022-04-01
Route ORAL
Dosage form TABLET
Substance AMITRIPTYLINE HYDROCHLORIDE; CHLORDIAZEPOXIDE
Why two NDCs? The FDA registers this code as 42571-302-01 — a 5-3-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the product segment → 42571-0302-01. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

Clinical

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

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 systemPer eachPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
ℹ️
No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.
Try another pack size: 500 tablets
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
42571-0302-01 You're viewing this Main listing 100 TABLET in 1 BOTTLE 2022-04-01 — Discontinued by firm
42571-0302-05 42571-302-05 500 TABLET in 1 BOTTLE 2022-04-01 — Discontinued by firm

You're viewing the smallest of 2 pack sizes for this product.

Pack size FAQ

What quantity is in this package?
This is a 100-count package — 100 tablet in 1 bottle.
How does this package differ from NDC 42571-0302-05?
Both are Chlordiazepoxide and Amitriptyline Hydrochloride 5 mg; 12.5 mg Tablet — the drug itself is identical. This page's package is the 100-count one, while NDC 42571-0302-05 is the 500 tablets package.
What NDC number is used to bill for this package of Chlordiazepoxide and Amitriptyline Hydrochloride 5 mg; 12.5 mg Tablet?
Use the 11-digit billing form listed in the identifiers section of this page. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Chlordiazepoxide and Amitriptyline Hydrochloride 5 mg/1; 12.5 mgthis 42571-0302-01 Micro 100 tablets — — Discontinued —
About this product: this is a generic version of the medicine. FDA equivalence ratings are shown when available, and other versions are listed above, least expensive first.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & generic status

🏛️
2022
On the market since
Apr 2022
📍
2026
Currently FDA-listed
4 years listed
🔓
·
Generic on the market
this product is a generic
✅This is a generic drug

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?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

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.

Loading inactive ingredients from the official FDA label in the background. No external source is being called by this page request.
Where does this data come from?
Source: official FDA Structured Product Labeling (SPL) via DailyMed and the openFDA label index. Structured 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?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

Manufacturer & labeler

LabelerMicro Labs Limited
Application holderMICRO LABS LTD
FDA applicationANDA211925 (ANDA)
Labeler code42571
First marketedApr 2022
DEA scheduleCIV
Product typeHuman Prescription Drug
Portfolio190 products on file

More NDCs from Micro Labs Limited labeler code 42571

The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Very long sections are excerpted here and marked; the full text is on DailyMed (linked in the sources below). Jump with a chip, search within the label, or expand everything.
🚨 Boxed Warning 🎯 Indications and Usage ⏱️ Dosage and Administration ⛔ Contraindications ⚠️ Warnings 🤒 Adverse Reactions 🔄 Drug Interactions 🤰 Pregnancy 🧒 Pediatric Use 🧓 Geriatric Use 🆘 Overdosage 📦 How Supplied / Storage and Handling 📋 Description 💬 Medication Guide ⚠️ Precautions 🍼 Nursing Mothers 🔒 Drug Abuse and Dependence 🔒 Controlled Substance 📄 Package Label / Principal Display Panel
🚨 Boxed Warning ~1 min read ▾

WARNING: RISKS FROM CONCOMITANT USE WITH OPIOIDS; ABUSE, MISUSE, AND ADDICTION; DEPENDENCE AND WITHDRAWAL REACTIONS; and SUICIDAL THOUGHTS AND BEHAVIORS Concomitant use of benzodiazepines and opioids may result in profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs for patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required.

Follow patients for signs and symptoms of respiratory depression and sedation (see WARNINGS and PRECAUTIONS ). The use of benzodiazepines, including c hlordiazepoxide and amitriptyline hydrochloride tablets , exposes users to risks of abuse, misuse, and addiction, which can lead to overdose or death. Abuse and misuse of benzodiazepines commonly involve concomitant use of other medications, alcohol, and/or illicit substances, which is associated with an increased frequency of serious adverse outcomes.

Before prescribing c hlordiazepoxide and amitriptyline hydrochloride tablets and throughout treatment, assess each patient’s risk for abuse, misuse, and addiction (see WARNINGS ). The continued use of benzodiazepines, including c hlordiazepoxide and amitriptyline hydrochloride tablets , may lead to clinically significant physical dependence. The risks of dependence and withdrawal increase with longer treatment duration and higher daily dose.

Abrupt discontinuation or rapid dosage reduction of c hlordiazepoxide and amitriptyline hydrochloride tablets after continued use may precipitate acute withdrawal reactions, which can be life-threatening. To reduce the risk of withdrawal reactions, use a gradual taper to discontinue c hlordiazepoxide and amitriptyline hydrochloride tablets or reduce the dosage (see DOSAGE AND ADMINISTRATION and WARNINGS ). Antidepressants increased the risk of suicidal thoughts and behaviors in pediatric and young adult patients in short-term studies.

Closely monitor all antidepressant-treated patients for clinical worsening, and for emergence of suicidal thoughts and behaviors (see WARNINGS ). C hlordiazepoxide and amitriptyline hydrochloride tablet is not approved for use in pediatric patients (see PRECAUTIONS ).

🎯 Indications and Usage 75 words ▾

INDICATIONS Chlordiazepoxide and amitriptyline hydrochloride tablets are indicated for the treatment of patients with moderate to severe depression associated with moderate to severe anxiety. The therapeutic response to chlordiazepoxide and amitriptyline hydrochloride tablet occurs earlier and with fewer treatment failures than when either amitriptyline or chlordiazepoxide is used alone. Symptoms likely to respond in the first week of treatment include: insomnia, feelings of guilt or worthlessness, agitation, psychic and somatic anxiety, suicidal ideation and anorexia.

⏱️ Dosage and Administration ~1 min read ▾

DOSAGE AND ADMINISTRATION Optimum dosage varies with the severity of the symptoms and the response of the individual patient. When a satisfactory response is obtained, dosage should be reduced to the smallest amount needed to maintain the remission. The larger portion of the total daily dose may be taken at bedtime.

In some patients, a single dose at bedtime may be sufficient. In general, lower dosages are recommended for elderly patients. Chlordiazepoxide and amitriptyline hydrochloride 10 mg/25 mg strength tablets are recommended in an initial dosage of 3 or 4 tablets daily in divided doses; this may be increased to 6 tablets daily as required.

Some patients respond to smaller doses and can be maintained on 2 tablets daily. Chlordiazepoxide and amitriptyline hydrochloride 5 mg/12.5 mg in an initial dosage of 3 or 4 tablets daily in divided doses may be satisfactory in patients who do not tolerate higher doses. Screen for Bipolar Disorder Prior to Starting Chlordiazepoxide and Amitriptyline Hydrochloride Tablets Prior to initiating treatment with chlordiazepoxide and amitriptyline hydrochloride tablets or another antidepressant, screen patients for a personal or family history of bipolar disorder, mania, or hypomania (see WARNINGS : Activation of Mania or Hypomania ).

Discontinuation or Dosage Reduction of Chlordiazepoxide and Amitriptyline Hydrochloride Tablets To reduce the risk of withdrawal reactions, use a gradual taper to discontinue chlordiazepoxide and amitriptyline hydrochloride tablets or reduce the dosage. If a patient develops withdrawal reactions, consider pausing the taper or increasing the dosage to the previous tapered dosage level. Subsequently decrease the dosage more slowly (see WARNINGS : Dependence and Withdrawal Reactions and DRUG ABUSE AND DEPENDENCE : Dependence ).

⛔ Contraindications 112 words ▾

CONTRAINDICATIONS Chlordiazepoxide and amitriptyline hydrochloride tablet is contraindicated in patients with hypersensitivity to either benzodiazepines or tricyclic antidepressants. It should not be given concomitantly with a monoamine oxidase inhibitor. Hyperpyretic crises, severe convulsions and deaths have occurred in patients receiving a tricyclic antidepressant and a monoamine oxidase inhibitor simultaneously.

When it is desired to replace a monoamine oxidase inhibitor with chlordiazepoxide and amitriptyline hydrochloride tablets, a minimum of 14 days should be allowed to elapse after the former is discontinued. Chlordiazepoxide and amitriptyline hydrochloride tablet should then be initiated cautiously with gradual increase in dosage until optimum response is achieved. This drug is contraindicated during the acute recovery phase following myocardial infarction.

⚠️ Warnings ~3 min read ▾

WARNINGS Risks from Concomitant Use with Opioids Concomitant use of benzodiazepines, including chlordiazepoxide and amitriptyline hydrochloride tablets, and opioids may result in profound sedation, respiratory depression, coma, and death. Because of these risks, reserve concomitant prescribing of these drugs in patients for whom alternative treatment options are inadequate. Observational studies have demonstrated that concomitant use of opioid analgesics and benzodiazepines increases the risk of drug-related mortality compared to use of opioids alone.

If a decision is made to prescribe chlordiazepoxide and amitriptyline hydrochloride tablets concomitantly with opioids, prescribe the lowest effective dosages and minimum durations of concomitant use, and follow patients closely for signs and symptoms of respiratory depression and sedation. In patients already receiving an opioid analgesic, prescribe a lower initial dose of chlordiazepoxide and amitriptyline hydrochloride tablets than indicated in the absence of an opioid and titrate based on clinical response. If an opioid is initiated in a patient already taking chlordiazepoxide and amitriptyline hydrochloride tablets, prescribe a lower initial dose of the opioid and titrate based upon clinical response.

Advise both patients and caregivers about the risks of respiratory depression and sedation when chlordiazepoxide and amitriptyline hydrochloride tablets are used with opioids. Advise patients not to drive or operate heavy machinery until the effects of concomitant use with the opioid have been determined (see PRECAUTIONS : Drug Interactions ). Abuse, Misuse, and Addiction The use of benzodiazepines, including chlordiazepoxide and amitriptyline hydrochloride tablets, exposes users to the risks of abuse, misuse, and addiction, which can lead to overdose or death.

Abuse and misuse of benzodiazepines often (but not always) involve the use of doses greater than the maximum recommended dosage and commonly involve concomitant use of other medications, alcohol, and/or illicit substances, which is associated with an increased frequency of serious adverse outcomes, including respiratory depression, overdose, or death (see DRUG ABUSE AND DEPENDENCE : Abuse ). Before prescribing chlordiazepoxide and amitriptyline hydrochloride tablets and throughout treatment, assess each patient’s risk for abuse, misuse, and addiction (e.g., using a standardized screening tool).

Use of chlordiazepoxide and amitriptyline hydrochloride tablets, particularly in patients at elevated risk, necessitates counseling about the risks and proper use of chlordiazepoxide and amitriptyline hydrochloride tablets along with monitoring for signs and symptoms of abuse, misuse, and addiction. Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug.

If a substance use disorder is suspected, evaluate the patient and institute (or refer them for) early treatment, as appropriate. Dependence and Withdrawal Reactions To reduce the risk of withdrawal reactions, use a gradual taper to discontinue chlordiazepoxide and amitriptyline hydrochloride tablets or reduce the dosage (a patient-specific plan should be used to taper the dose) (see DOSAGE AND ADMINISTRATION : Discontinuation or Dosage Reduction of Chlordiazepoxide and Amitriptyline Hydrochloride Tablets ). Patients at an increased risk of withdrawal adverse reactions after benzodiazepine discontinuation or rapid dosage reduction include those who take higher dosages, and those who have had longer durations of use.

Acute Withdrawal Reactions The continued use of benzodiazepines, including chlordiazepoxide and amitriptyline hydrochloride tablets, may lead to clinically significant physical dependence. Abrupt discontinuation or rapid dosage reduction of chlordiazepoxide and amitriptyli… [Excerpted — this section continues on DailyMed.]

🤒 Adverse Reactions ~1 min read ▾

ADVERSE REACTIONS Adverse reactions to chlordiazepoxide and amitriptyline hydrochloride tablets are those associated with the use of either component alone. Most frequently reported were drowsiness, dry mouth, constipation, blurred vision, dizziness and bloating. Other side effects occurring less commonly included vivid dreams, impotence, tremor, confusion and nasal congestion.

Many symptoms common to the depressive state, such as anorexia, fatigue, weakness, restlessness and lethargy, have been reported as side effects of treatment with both chlordiazepoxide and amitriptyline hydrochloride tablets and amitriptyline. Granulocytopenia, jaundice and hepatic dysfunction of uncertain etiology have also been observed rarely with chlordiazepoxide and amitriptyline hydrochloride tablets. When treatment with chlordiazepoxide and amitriptyline hydrochloride tablet is prolonged, periodic blood counts and liver function tests are advisable.

Note: Included in the listing which follows are adverse reactions which have not been reported with chlordiazepoxide and amitriptyline hydrochloride tablets. However, they are included because they have been reported during therapy with one or both of the components or closely related drugs. Cardiovascular: Hypotension, hypertension, tachycardia, palpitations, myocardial infarction, arrhythmias, heart block, stroke.

Psychiatric: Euphoria, apprehension, poor concentration, delusions, hallucinations, hypomania and increased or decreased libido. Neurologic: Incoordination, ataxia, numbness, tingling and paresthesias of the extremities, extrapyramidal symptoms, syncope, changes in EEG patterns. Anticholinergic: Disturbance of accommodation, paralytic ileus, urinary retention, dilatation of urinary tract.

Allergic: Skin rash, urticaria, photosensitization, edema of face and tongue, pruritus, drug reaction with eosinophilia and systemic symptoms (DRESS). Hematologic: Bone marrow depression including agranulocytosis, eosinophilia, purpura, thrombocytopenia. Gastrointestinal: Nausea, epigastric distress, vomiting, anorexia, stomatitis, peculiar taste, diarrhea, black tongue.

Endocrine: Testicular swelling and gynecomastia in the male, breast enlargement, galactorrhea and minor menstrual irregularities in the female, elevation and lowering of blood sugar levels, and syndrome of inappropriate ADH (antidiuretic hormone) secretion. Other: Headache, weight gain or loss, increased perspiration, urinary frequency, mydriasis, jaundice, alopecia, parotid swelling, hyponatremia.

🔄 Drug Interactions 78 words ▾

Drug-Drug Interactions The concomitant use of benzodiazepines and opioids increases the risk of respiratory depression because of actions at different receptor sites in the CNS that control respiration. Benzodiazepines interact at GABA A sites and opioids interact primarily at mu receptors. When benzodiazepines and opioids are combined, the potential for benzodiazepines to significantly worsen opioid-related respiratory depression exists.

Limit dosage and duration of concomitant use of benzodiazepines and opioids, and monitor patients closely for respiratory depression and sedation.

🤰 Pregnancy ~1 min read ▾

Pregnancy Pregnancy Exposure Registry There is a pregnancy registry that monitors pregnancy outcomes in women exposed to psychiatric medications, including chlordiazepoxide and amitriptyline hydrochloride tablets, during pregnancy. Healthcare providers are encouraged to register patients by calling the National Pregnancy Registry for Psychiatric Medications at 1-866-961-2388 or visiting online at https://womensmentalhealth.org/pregnancyregistry/ . Risk Summary Neonates born to mothers using benzodiazepines late in pregnancy have been reported to experience symptoms of sedation and/or neonatal withdrawal (see WARNINGS : Neonatal Sedation and Withdrawal Syndrome , and PRECAUTIONS : Clinical Considerations ).

Available data from published observational studies of pregnant women exposed to benzodiazepines do not report a clear association with benzodiazepines and major birth defects ( see Data ). The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.

In the U.S. general population, the estimated risk of major birth defects and of miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions Benzodiazepines cross the placenta and may produce respiratory depression, hypotonia and sedation in neonates. Monitor neonates exposed to chlordiazepoxide and amitriptyline hydrochloride tablets during pregnancy or labor for signs of sedation, respiratory depression, hypotonia, and feeding problems.

Monitor neonates exposed to chlordiazepoxide and amitriptyline hydrochloride tablets during pregnancy for signs of withdrawal. Manage these neonates accordingly (see WARNINGS : Neonatal Sedation and Withdrawal Syndrome ). Data Human Data Published data from observational studies on the use of benzodiazepines during pregnancy do not report a clear association with benzodiazepines and major birth defects.

Although early studies reported an increased risk of congenital malformations with diazepam and chlordiazepoxide, there was no consistent pattern noted. In addition, the majority of more recent case-control and cohort studies of benzodiazepine use during pregnancy, which were adjusted for confounding exposures to alcohol, tobacco and other medications, have not confirmed these findings.

🧒 Pediatric Use 53 words ▾

Pediatric Use Safety and effectiveness in the pediatric population have not been established (see BOX WARNING and WARNINGS - Suicidal Thoughts and Behaviors in Adolescents and Young Adults ). Anyone considering the use of chlordiazepoxide and amitriptyline hydrochloride tablets in a child or adolescent must balance the potential risks with the clinical need.

🧓 Geriatric Use ~1 min read ▾

Geriatric Use In elderly and debilitated patients it is recommended that dosage be limited to the smallest effective amount to preclude the development of ataxia, oversedation, confusion or anticholinergic effects. Of the total number of subjects in clinical studies of chlordiazepoxide and amitriptyline hydrochloride tablets, 74 individuals were 65 years and older. An additional 34 subjects were between 60 and 69 years of age.

No overall differences in safety and effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. The active ingredients in chlordiazepoxide and amitriptyline hydrochloride tablets are known to be substantially excreted by the kidney and the risk of toxic reactions to this drug may be greater in patients with impaired renal function.

Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection and it may be useful to monitor renal function. Sedating drugs may cause confusion and over-sedation in the elderly; elderly patients generally should be started on low doses of chlordiazepoxide and amitriptyline hydrochloride tablets and observed closely. Clinical studies of chlordiazepoxide and amitriptyline hydrochloride tablets did not include sufficient numbers of subjects aged 65 years and older to determine whether they respond differently than younger subjects.

Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal or cardiac function and of concomitant disease or other drug therapy.

🆘 Overdosage ~2 min read ▾

OVERDOSAGE Overdosage of chlordiazepoxide and amitriptyline hydrochloride tablets, which contains a benzodiazepine (chlordiazepoxide) and a tricyclic antidepressant (amitriptyline hydrochloride), may manifest signs and symptoms related to either of its components. Deaths may occur from overdosage with this class of drugs. Multiple drug ingestion (including alcohol) is common in deliberate tricyclic antidepressant overdose.

Signs and symptoms of toxicity develop rapidly after tricyclic antidepressant overdose. Critical manifestations of tricyclic antidepressant overdosage include cardiac dysrhythmias, severe hypotension, convulsions and CNS depression, including coma. Changes in the electrocardiogram, particularly in QRS axis or width, are clinically significant indicators of tricyclic antidepressant toxicity.

Obtain an ECG and immediately initiate cardiac monitoring; hospital monitoring is required as soon as possible. Other signs of overdosage may include confusion, disturbed concentration, transient visual hallucinations, dilated pupils, agitation, hyperactive reflexes, stupor, drowsiness, muscle rigidity, vomiting, hypothermia, hyperpyrexia or any of the symptoms listed under ADVERSE REACTIONS. Overdosage of benzodiazepines is characterized by central nervous system depression ranging from drowsiness to coma.

In mild to moderate cases, symptoms can include drowsiness, confusion, dysarthria, lethargy, hypnotic state, diminished reflexes, ataxia, and hypotonia. Rarely, paradoxical or disinhibitory reactions (including agitation, irritability, impulsivity, violent behavior, confusion, restlessness, excitement, and talkativeness) may occur. In severe overdosage cases, patients may develop respiratory depression and coma.

Overdosage of benzodiazepines in combination with other CNS depressants (including alcohol and opioids) may be fatal (see WARNINGS : Abuse, Misuse, and Addiction ). Markedly abnormal (lowered or elevated) blood pressure, heart rate, or respiratory rate raise the concern that additional drugs and/or alcohol are involved in the overdosage. In managing benzodiazepine overdosage, employ general supportive measures, including intravenous fluids and airway management.

Flumazenil, a specific benzodiazepine receptor antagonist indicated for the complete or partial reversal of the sedative effects of benzodiazepines in the management of benzodiazepine overdosage, can lead to withdrawal and adverse reactions, including seizures with chlordiazepoxide and amitriptyline hydrochloride tablets because overdosage with amitriptyline and other tricyclic and tetracyclic antidepressants increases the risk of seizures. Seizure risk is also increased in patients with long-term benzodiazepine use and physical dependency.

The risk of withdrawal seizures with flumazenil use also may be increased in patients with epilepsy. Flumazenil is contraindicated in patients who have received a benzodiazepine for control of a potentially life-threatening condition (e.g., status epilepticus). Contact the Poison Help line (1-800-222-1222) or medical toxicologist for additional overdosage management recommendations.

📦 How Supplied / Storage and Handling 116 words ▾

HOW SUPPLIED The 5 mg/12.5 mg tablets are green, round, biconvex, film-coated tablets, debossed "CA1" on one side and plain on the other side. They are available as follows: Bottles of 100 NDC 42571-302-01 Bottles of 500 NDC 42571-302-05 The 10 mg/25 mg tablets are white, round, biconvex, film-coated tablets, debossed "CA2"on one side and plain on the other side. They are available as follows: Bottles of 100 NDC 42571-303-01 Bottles of 500 NDC 42571-303-05 Store at 20° to 25°C (68° to 77°F). [see USP Controlled Room Temperature].

Store in a dry place. Keep in a tightly closed, child-resistant container and out of the light. Manufactured for: Micro Labs USA Inc.

Somerset, NJ 08873 Revised: 03/2025-01

📋 Description 212 words ▾

DESCRIPTION Chlordiazepoxide and amitriptyline hydrochloride tablets, USP combine for oral administration, chlordiazepoxide, an agent for the relief of anxiety and tension, and amitriptyline, an antidepressant. It is available in as white, round, biconvex film-coated tablets debossed 'CA2'on one side and the other side is plain, each containing 10 mg chlordiazepoxide and 25 mg amitriptyline (as the hydrochloride salt); and in green, round, biconvex, film-coated tablets debossed 'CA1 'on one side and the other side is plain, each containing 5 mg chlordiazepoxide and 12.5 mg amitriptyline (as the hydrochloride salt).

Each tablet also contains hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, silicon dioxide, sodium starch glycolate, talc and titanium dioxide. In addition, the 10 mg/25 mg tablet contains polyethylene glycol 400 and 5 mg/12.5 mg tablet contains D&C YELLOW NO.10, FD&C BLUE NO.1, FD & C YELLOW NO. 6 and polyethylene glycol 6000.

Chlordiazepoxide USP is a benzodiazepine with the formula 7-chloro-2-(methyl-amino)-5­-phenyl- 3H -1,4-benzodiazepine 4-oxide. It is a slightly yellow crystalline material and is insoluble in water. The molecular weight is 299.76.

Amitriptyline Hydrochloride USP is a dibenzocycloheptadiene derivative. The formula is 10,11-dihydro- N,N- dimethyl-5H-dibenzo [a,d] cycloheptene-Δ 5, γ -propylamine hydrochloride. It is a white or practically white crystalline compound that is freely soluble in water.

The molecular weight is 313.87.

💬 Medication Guide ~2 min read ▾

MEDICATION GUIDE Chlordiazepoxide and Amitriptyline Hydrochloride (KLOR-dye-AZ-e-POX-ide/A-mi-TRIP-ti-leen hye-droe-klor-ide) Tablets, USP C-IV What is the most important information I should know about chlordiazepoxide and amitriptyline hydrochloride tablets? Chlordiazepoxide and amitriptyline hydrochloride tablet is a benzodiazepine medicine. Taking benzodiazepines with opioid medicines, alcohol, or other central nervous system (CNS) depressants (including street drugs) can cause severe drowsiness, breathing problems (respiratory depression), coma and death.

Get emergency help right away if any of the following happens: shallow or slowed breathing breathing stops (which may lead to the heart stopping) excessive sleepiness (sedation) Do not drive or operate heavy machinery until you know how taking chlordiazepoxide and amitriptyline hydrochloride tablets with opioids affects you. Risk of abuse, misuse, and addiction. There is a risk of abuse, misuse, and addiction with benzodiazepines, including chlordiazepoxide and amitriptyline hydrochloride tablets, which can lead to overdose and serious side effects including coma and death.

Serious side effects including coma and death have happened in people who have abused or misused benzodiazepines, including chlordiazepoxide and amitriptyline hydrochloride tablets. These serious side effects may also include delirium, paranoia, suicidal thoughts or actions, seizures, and difficulty breathing. Call your healthcare provider or go to the nearest hospital emergency room right away if you get any of these serious side effects.

You can develop an addiction even if you take chlordiazepoxide and amitriptyline hydrochloride tablets exactly as prescribed by your healthcare provider. Take chlordiazepoxide and amitriptyline hydrochloride tablets exactly as your healthcare provider prescribed. Do not share your chlordiazepoxide and amitriptyline hydrochloride tablets with other people.

Keep chlordiazepoxide and amitriptyline hydrochloride tablets in a safe place and away from children. Physical dependence and withdrawal reactions. Chlordiazepoxide and amitriptyline hydrochloride tablets can cause physical dependence and withdrawal reactions.

Do not suddenly stop taking chlordiazepoxide and amitriptyline hydrochloride tablets . Stopping chlordiazepoxide and amitriptyline hydrochloride tablets suddenly can cause serious and life-threatening side effects, including, unusual movements, responses, or expressions, seizures, sudden and severe mental or nervous system changes, depression, seeing or hearing things that others do not see or hear, an extreme increase in activity or talking, losing touch with reality, and suicidal thoughts or actions. Call your healthcare provider or go to the nearest hospital emergency room right away if you get any of these symptoms.

Some people who suddenly stop benzodiazepines have symptoms that can last for several weeks to more than 12 months, including, anxiety, trouble remembering, learning, or concentrating, depression, problems sleeping, feeling like insects are crawling under your skin, weakness, shaking, muscle twitching, burning or prickling feeling in your hands, arms, legs or feet, and ringing in your ears. Physical dependence is not the same as drug addiction. Your healthcare provider can tell you more about the differences between physical dependence and drug addiction.

Do not take more chlordiazepoxide and amitriptyline hydrochloride tablets than prescribed or take chlordiazepoxide and amitriptyline hydrochloride tablets for longer than prescribed. Increased risk of suicidal thoughts or actions in children, adolescents and young adults. Chlordiazepoxide and amitriptyline hydrochloride tablets and other antidepressant medicines may increase suicidal thoughts or actions in some people 24 years of age and younger, especially within the first few months of treatment or when the dose is changed.

Depression or other serious mental illnesses are the most important… [Excerpted — this section continues on DailyMed.]

⚠️ Precautions ~3 min read ▾

PRECAUTIONS General Use with caution in patients with a history of seizures. Close supervision is required when chlordiazepoxide and amitriptyline hydrochloride tablets are given to hyperthyroid patients or those on thyroid medication. The usual precautions should be observed when treating patients with impaired renal or hepatic function.

Patients with suicidal ideation should not have easy access to large quantities of the drug. The possibility of suicide in depressed patients remains until significant remission occurs. Information for Patients Advise the patient to read the FDA-approved patient labeling (Medication Guide).

Risks from Concomitant Use with Opioids Advise both patients and caregivers about the risks of potentially fatal respiratory depression and sedation when chlordiazepoxide and amitriptyline hydrochloride tablets is used with opioids and not to use such drugs concomitantly unless supervised by a health care provider. Advise patients not to drive or operate heavy machinery until the effects of concomitant use with the opioid have been determined (see WARNINGS : Risks from Concomitant Use with Opioids and PRECAUTIONS : Drug Interactions ).

Abuse, Misuse, and Addiction Inform patients that the use of chlordiazepoxide and amitriptyline hydrochloride tablets, even at recommended dosages, exposes users to risks of abuse, misuse, and addiction, which can lead to overdose and death, especially when used in combination with other medications (e.g., opioid analgesics), alcohol, and/or illicit substances. Inform patients about the signs and symptoms of benzodiazepine abuse, misuse, and addiction; to seek medical help if they develop these signs and/or symptoms; and on the proper disposal of unused drug (see WARNINGS : Abuse, Misuse, and Addiction and DRUG ABUSE AND DEPENDENCE ).

Withdrawal Reactions Inform patients that the continued use of chlordiazepoxide and amitriptyline hydrochloride tablets may lead to clinically significant physical dependence and that abrupt discontinuation or rapid dosage reduction of chlordiazepoxide and amitriptyline hydrochloride tablets may precipitate acute withdrawal reactions, which can be life-threatening. Inform patients that in some cases, patients taking benzodiazepines have developed a protracted withdrawal syndrome with withdrawal symptoms lasting weeks to more than 12 months.

Instruct patients that discontinuation or dosage reduction of chlordiazepoxide and amitriptyline hydrochloride tablets may require a slow taper (see WARNINGS : Dependence and Withdrawal Reactions and DRUG ABUSE AND DEPENDENCE ). Suicidal Thoughts and Behaviors Advise patients and caregivers to look for the emergence of suicidal thoughts and behaviors, especially early during treatment and when the dosage is adjusted up or down (see WARNINGS : Suicidal Thoughts and Behaviors in Adolescents and Young Adults ). Pregnancy Advise pregnant females that use of chlordiazepoxide and amitriptyline hydrochloride tablets late in pregnancy can result in sedation (respiratory depression, lethargy, hypotonia) and/or withdrawal symptoms (hyperreflexia, irritability, restlessness, tremors, inconsolable crying, and feeding difficulties) in newborns (see WARNINGS : Neonatal Sedation and Withdrawal Syndrome and PRECAUTIONS : Pregnancy ).

Instruct patients to inform their healthcare provider if they are pregnant. Advise patients that there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to chlordiazepoxide and amitriptyline hydrochloride tablets during pregnancy (see PRECAUTIONS : Pregnancy ). Nursing Advise patients that breastfeeding is not recommended during treatment with chlordiazepoxide and amitriptyline hydrochloride tablets (see PRECAUTIONS : Nursing Mothers ).

Essential Laboratory Tests Patients on prolonged treatment should have periodic liver function tests and blood counts. Drug-Drug Interactions The concomitant use of benzodiazepines and opioids increases the risk of respiratory de… [Excerpted — this section continues on DailyMed.]

🍼 Nursing Mothers 68 words ▾

Nursing Mothers Risk Summary It is not known whether this drug is excreted in human milk. There are reports of sedation, poor feeding and poor weight gain in infants exposed to benzodiazepines through breast milk. Because of the potential for serious adverse reaction, including sedation and withdrawal symptoms in breastfed neonates and infants, advise patients that breastfeeding is not recommended during treatment with chlordiazepoxide and amitriptyline hydrochloride tablets.

🔒 Drug Abuse and Dependence ~2 min read ▾

DRUG ABUSE AND DEPENDENCE Controlled Substance Chlordiazepoxide and amitriptyline hydrochloride tablet contains chlordiazepoxide, a Schedule IV controlled substance. Abuse Chlordiazepoxide and amitriptyline hydrochloride tablet is a benzodiazepine and a CNS depressant with a potential for abuse and addiction. Abuse is the intentional, non-therapeutic use of a drug, even once, for its desirable psychological or physiological effects.

Misuse is the intentional use, for therapeutic purposes, of a drug by an individual in a way other than prescribed by a health care provider or for whom it was not prescribed. Drug addiction is a cluster of behavioral, cognitive, and physiological phenomena that may include a strong desire to take the drug, difficulties in controlling drug use (e.g., continuing drug use despite harmful consequences, giving a higher priority to drug use than other activities and obligations), and possible tolerance or physical dependence.

Even taking benzodiazepines as prescribed may put patients at risk for abuse and misuse of their medication. Abuse and misuse of benzodiazepines may lead to addiction. Abuse and misuse of benzodiazepines often (but not always) involve the use of doses greater than the maximum recommended dosage and commonly involve concomitant use of other medications, alcohol, and/or illicit substances, which is associated with an increased frequency of serious adverse outcomes, including respiratory depression, overdose, or death.

Benzodiazepines are often sought by individuals who abuse drugs and other substances, and by individuals with addictive disorders (see WARNINGS : Abuse, Misuse, and Addiction ). The following adverse reactions have occurred with benzodiazepine abuse and/or misuse: abdominal pain, amnesia, anorexia, anxiety, aggression, ataxia, blurred vision, confusion, depression, disinhibition, disorientation, dizziness, euphoria, impaired concentration and memory, indigestion, irritability, muscle pain, slurred speech, tremors, and vertigo.

The following severe adverse reactions have occurred with benzodiazepine abuse and/or misuse: delirium, paranoia, suicidal ideation and behavior, seizures, coma, breathing difficulty, and death. Death is more often associated with polysubstance use (especially benzodiazepines with other CNS depressants such as opioids and alcohol). Dependence Physical Dependence Chlordiazepoxide and amitriptyline hydrochloride tablets may produce physical dependence from continued therapy.

Physical dependence is a state that develops as a result of physiological adaptation in response to repeated drug use, manifested by withdrawal signs and symptoms after abrupt discontinuation or a significant dose reduction of a drug. Abrupt discontinuation or rapid dosage reduction of benzodiazepines or administration of flumazenil, a benzodiazepine antagonist, may precipitate acute withdrawal reactions, including seizures, which can be life-threatening. Patients at an increased risk of withdrawal adverse reactions after benzodiazepine discontinuation or rapid dosage reduction include those who take higher dosages (i.e., higher and/or more frequent doses) and those who have had longer durations of use (see WARNINGS : Dependence and Withdrawal Reactions ).

To reduce the risk of withdrawal reactions, use a gradual taper to discontinue chlordiazepoxide and amitriptyline hydrochloride tablets or reduce the dosage (see DOSAGE and ADMINISTRATION : Discontinuation or Dosage Reduction of C hlordiazepoxide and Amitriptyline Hydrochloride Tablets and WARNINGS : Dependence and Withdrawal Reactions ). Acute Withdrawal Signs and Symptoms Acute withdrawal signs and symptoms associated with benzodiazepines have included abnormal involuntary movements, anxiety, blurred vision, depersonalization, depression, derealization, dizziness, fatigue, gastrointestinal adverse reactions (e.g., nausea, vomiting, diarrhea, weight loss, decreased appetite), headache, hyperacusis, hypertension, irritability,… [Excerpted — this section continues on DailyMed.]

🔒 Controlled Substance 14 words ▾

Controlled Substance Chlordiazepoxide and amitriptyline hydrochloride tablet contains chlordiazepoxide, a Schedule IV controlled substance.

📄 Package Label / Principal Display Panel 62 words ▾

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL NDC 42571-302-01 Chlordiazepoxide and Amitriptyline Hydrochloride Tablets, USP CIV 5 mg/12.5 mg* 100 Tablets Rx Only Pharmacist: Dispense the accompanying Medication Guide to each patient. Micro Labs Limited NDC 42571-303-01 Chlordiazepoxide and Amitriptyline Hydrochloride Tablets, USP CIV 10 mg/25 mg* 100 Tablets Rx Only Pharmacist: Dispense the accompanying Medication Guide to each patient. Micro Labs Limited chlordiazepoxide-lbla.jpg chlordiazepoxide-lblb.jpg

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗

Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Chlordiazepoxide and amitriptyline hydrochloride — the ingredient across all brands.

Top reported reactions

Abnormal Behaviour1
Anxiety1
Asthenia1
Colitis Ischaemic1
Constipation1
Decreased Appetite1
Drug Interaction Potentiation1

Reporter sex

4 reports
Male · 25%
Female · 75%

Serious outcomes

Hospitalization1
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

About this NDC listing & data coverage

Finished prescription product No longer marketed (per FDA listing data)
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos — Not published for this NDC No photo available yet for this listing.
Inactive ingredients (structured) — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available.
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope.
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
What does the discontinued status mean for this NDC?
The labeler reported a marketing end date (or the listing was delisted), so this specific package is no longer actively marketed. Remaining stock may still be dispensed for a time, and the NDC stays valid for historical records and claims — but data feeds (pricing, labeling) typically stop updating for it. Other package sizes or other manufacturers' versions of the same medication may still be marketed — see the equivalents section where available.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
Does this product come in other package sizes?
Yes — the FDA directory lists 1 other package presentation of this same product, including 500 tablets (42571-0302-05). Each has its own NDC and its own page — see the package list near the top of this page.
Who lists this product with the FDA?
Micro Labs Limited is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
← 42571-0294-79 · Micro 42571-0303-01 · Micro →
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.