Nocturne

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Nocturne

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Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Nocturne

Quick Facts

  • Active Ingredient: Temazepam
  • Drug Class: Benzodiazepine (Sedative-Hypnotic)
  • Primary Use: Short-term treatment of insomnia
  • DEA Schedule: Schedule IV Controlled Substance

Nocturne is a brand name for the prescription medication temazepam, which belongs to a class of drugs called benzodiazepines and is categorized as a sedative-hypnotic agent. It is primarily indicated for the short-term management of insomnia, specifically helping patients who experience difficulty falling asleep, frequent nighttime awakenings, and/or early morning awakenings.

Mechanism of Action

Temazepam works within the central nervous system (CNS) by enhancing the effects of a naturally occurring brain chemical called gamma-aminobutyric acid (GABA). GABA is the chief inhibitory neurotransmitter, functioning to reduce neuronal excitability in the brain. By binding to specific sites on the GABA-A receptor, temazepam potentiates GABA's inhibitory activity, which ultimately slows down brain activity to induce sedation, reduce anxiety, and promote sleep.

Because of its potential for abuse, dependence, and the risk of withdrawal symptoms, temazepam is designated as a Schedule IV controlled substance and is generally recommended for use over a period of seven to ten days.

What side effects are possible with Nocturne?

Possible side effects and safety information

The safety profile for Nocturne (temazepam) is officially documented by regulatory authorities and includes adverse reactions classified by frequency and affected body system. The medicine is primarily associated with Central Nervous System (CNS) effects due to its action as a sedative-hypnotic.

Adverse Reactions and System Groupings

The most common adverse reactions listed in official labeling include CNS effects such as drowsiness, somnolence, headache, dizziness, lethargy, and ataxia (impaired coordination). Other common effects involve the Gastrointestinal system, such as nausea and dry mouth. Less common reactions reported include euphoria, nervousness, visual disturbances, and cardiovascular events like palpitations.

Serious Adverse Reactions

Official regulatory documents contain significant safety warnings for temazepam. As a benzodiazepine, it carries a prominent risk of abuse, misuse, addiction, and physical dependence. Life-threatening respiratory depression, coma, and death are noted risks, particularly when the drug is used concomitantly with opioid medications. Other serious documented reactions include Complex Sleep Behaviors (e.g., driving or eating while not fully awake with no memory of the event) and severe, life-threatening allergic reactions like anaphylaxis and angioedema.

Population and Duration-Related Safety

The label includes specific safety constraints for vulnerable populations. Older and debilitated patients are at an increased risk of oversedation, confusion, and falls, requiring specific monitoring. The medication is officially indicated for short-term use only (generally 7 to 10 days) because the risk of developing physical dependence and experiencing severe withdrawal symptoms upon discontinuation increases with continuous, longer-term exposure.

Overdose and Emergency Response

Overdose with Nocturne (temazepam) is documented to reflect increasing central nervous system (CNS) depression. Documented clinical manifestations typically range from somnolence, drowsiness, confusion, and impaired coordination to reduced or absent reflexes.

In cases of larger exposure, the official regulatory profiles state that overdose may progress to more severe outcomes, involving the Respiratory System (leading to respiratory depression) and the Cardiovascular System (resulting in hypotension). The most severe outcome is coma. A life-threatening risk of profound sedation, respiratory depression, and death is specifically noted when temazepam is used concomitantly with opioid medications.


Required Emergency Actions

Situation Action Mandated by Regulators
Suspected Overdose Seek immediate medical attention and contact the Poison Control Helpline.
Severe Symptoms Immediately call emergency services (e.g., 911) if the individual has collapsed, had a seizure, has trouble breathing, or is unresponsive/cannot be awakened.

The required treatment is strictly symptomatic and supportive. While the specific benzodiazepine antagonist, Flumazenil, may be considered, its use is noted in regulatory information to carry a risk of adverse effects, including the precipitation of seizures. Continuous hospital monitoring and management of vital signs are required to address potential respiratory failure or persistent CNS effects.

Therapeutic Uses of Nocturne

This class of medication is commonly used for the symptomatic management of short-term sleep disturbances. The application of this medication is relevant for easing specific symptom patterns and contributes to overall comfort.

Nocturne is applied to address the core symptoms of insomnia, including prolonged sleep onset (difficulty falling asleep) and frequent or early awakenings (difficulty staying asleep). It is commonly used during acute episodes of sleeplessness caused by stress, emotional tension, or temporary disruptions like jet lag or shift work. This medication offers symptomatic relief that helps patients cope more steadily with difficult episodes, applied when symptoms intensify and short-term supportive management is needed.

The primary therapeutic benefit of Nocturne is to facilitate a more consolidated, restful night's sleep, which supports the subjective feeling of restorative sleep. This may contribute to improving day-to-day comfort during symptomatic periods, supporting greater alertness and easing fatigue the following day.

“The application of this medication is relevant for easing specific symptom patterns and contributes to overall comfort.”


Quick Fact: Support for Sleep Onset Difficulties

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Nocturne (Temazepam) — Official Regulatory Information

Populations for whom use is allowed (as stated in label):

  • Adults (typically 18 years and older) for the short-term treatment of insomnia.

Populations for whom use is contraindicated:

  • Patients with known hypersensitivity to temazepam or other benzodiazepines.
  • Individuals with severe hepatic insufficiency (liver failure) or severe respiratory insufficiency.
  • Patients with severe sleep apnea syndrome or myasthenia gravis.
  • Women who are pregnant or who may become pregnant (contraindicated by the FDA) and women who are breastfeeding (not recommended).

Age-related eligibility rules:

  • Use is not established or contraindicated in children and adolescents (under 18 years).
  • Older adults require use with caution and a reduced initial dosage due to increased sensitivity and risk.

Condition-specific eligibility rules:

  • Patients with a history of drug or alcohol abuse must use the medicine with extreme caution.
  • Eligibility is restricted for patients with renal impairment or mild to moderate hepatic impairment, requiring cautious use.

Connection to the overall eligibility profile: Regulatory documents define who can and cannot use the medicine by establishing absolute prohibitions for patients with specific severe conditions or allergies. They also impose conditional use restrictions on vulnerable groups, such as older adults and those with organ impairment, while classifying use in children and pregnant women as not established or not recommended.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Nocturne (temazepam) is primarily defined by the risk of pharmacodynamic reinforcement when co-administered with other central nervous system (CNS) depressants.

High-Risk Pharmacodynamic Interactions

The co-administration of Nocturne with opioids is designated as a high-risk combination in official regulatory warnings. This interaction can result in profound sedation, respiratory depression, coma, and potentially death. Regulatory guidance mandates a strict restriction: co-prescribing with opioids must be reserved for situations where alternative treatments are inadequate. Furthermore, co-consumption with alcohol is formally prohibited as it severely intensifies the documented CNS-depressant effects, increasing the risk of severe respiratory compromise. Other CNS depressants, including barbiturates, general anesthetics, and sedative antipsychotics, also produce documented additive CNS-depressant effects.

Metabolic and Population-Based Profile

Temazepam’s primary metabolism is through Phase II glucuronidation, which results in the official interaction profile lacking specific restrictions related to common CYP450 enzyme inhibitors or inducers. Formal regulatory documents in certain territories list co-administration with drugs that reduce seizure threshold as a contraindication. Caution is officially required in populations such as elderly patients and those with hepatic or renal dysfunction due to their increased sensitivity or potential for reduced clearance, which can heighten the risk of adverse interaction outcomes.

Mechanism of Action

How Nocturne Works

Modulating GABA A Receptor Activity

Nocturne's action centers on the GABA A receptor, which is the brain's primary site for inhibitory signaling. The drug works as a Positive Allosteric Modulator (PAM), binding to the receptor to amplify the effects of the natural neurotransmitter GABA, thereby enhancing the function of the brain's main inhibitory system.

Inducing Neuronal Hyperpolarization

By enhancing GABA's action, the mechanism increases the flow of negatively charged chloride ions into the nerve cells. This ion influx makes the neurons hyperpolarized (more electrically negative), making them less excitable. This cascade modifies early molecular steps that shape systemic physiological outcomes, resulting in generalized central depression.

Dampening Central Nervous System Excitability

The overall effect of enhanced GABA activity is a widespread suppression of neural firing and a reduction in the brain's activity. This mechanism directly influences core systems that regulate overactive signaling and results in physiological adjustments, including muscle relaxation as a secondary consequence.

Dosage and Administration Information

Official Administration Guidelines for Nocturne

Nocturne (temazepam) is for oral administration as a capsule or tablet. The medicine is designed to be taken once daily immediately before going to bed (on retiring) and not sooner, as it is a short-acting hypnotic agent.


Dosing and Duration Protocols

The standard adult dose for the short-term treatment of insomnia is 15 mg at bedtime, though the full range for use extends from 7.5 mg to 30 mg. Use is generally recommended for short periods of 7 to 10 consecutive days. Certain protocols specify a maximum duration of 4 weeks, including any necessary gradual withdrawal period.


Population-Specific and Procedural Instructions

Age-Group Administration: For older adults or debilitated patients, the recommended initial dose is 7.5 mg at bedtime, due to sensitivity and general cautious dosing principles. Safety and efficacy have not been established for use in children under 18.

Key Procedural Conditions:

  • The medicine should only be taken when the user can commit to obtaining a full night’s sleep, generally defined as 7 to 8 hours, before needing to be active again.
  • If a dose is missed, the instruction is to skip the missed dose and wait for the next scheduled time; doses should not be doubled. A gradual taper is required for discontinuation following extended periods of use.

This protocol establishes Nocturne as an oral, single-dose, pre-sleep medication intended for the temporary management of sleep disturbances, with clear, specific limitations on dosing, duration, and patient age groups.

Recent Clinical Evidence

Research evidence / Overview of Studies for Nocturne

This section summarizes the published medical research related to the indications studied for Nocturne. The research reviewed here describes group patterns and helps show what has been observed so far in specific patient populations under specific study conditions. Research provides context but not individual predictions.


Evidence for use in Low-Grade Appendiceal Mucinous Neoplasm (LAMN)

Research exploring how symptoms change over time in LAMN has primarily involved reviewing records of patients who were treated in the past, known as retrospective case series and cohort studies. There is a lack of prospective clinical trials in this area. Studies monitored outcomes related to physical discomfort and outcomes describing episodic or acute changes. Findings describe patterns observed in the studies related to overall survival and the reported recurrence rates. The data show patterns related to descriptive surgical pathology. What remains uncertain is the specific treatment sequencing for LAMN, as comparative evidence is lacking. Long-term outcomes are not fully established, as follow-up durations were limited in many series.


Evidence for use in Peritoneal Metastasis (PM) from Colorectal Cancer (CRC)

Studies evaluating treatment for PM from CRC include short-term and medium-term randomized controlled trials (RCTs) and various observational studies. Some research explored short-term symptom changes by comparing a multi-modal approach (Cytoreductive Surgery [CRS] plus HIPEC) with systemic chemotherapy alone. Findings describe patterns observed in the studies that show achieving a complete removal of visible disease during surgery (complete cytoreduction) was associated with cohorts where measurements of longer survival were reported. Comparative evidence is lacking regarding which specific chemotherapy drugs or temperatures are studied in the HIPEC procedure. Furthermore, long-term outcomes are not fully established.


What is still uncertain about Nocturne

The existing research highlights what is known—and what is still uncertain. Evidence quality varies across studies, with a lack of large, randomized trials for the rarer indications. Comparative evidence is lacking to definitively identify the specific components of the HIPEC procedure for all indications. Furthermore, studies contribute to the broader evidence landscape but do not offer conclusive data on the exact mechanisms related to recurrence or long-term disease control, and certainty remains low for outcomes beyond medium-term follow-up.

Key Studies & References

  1. NCCN Guidelines: Colon and Rectal Cancers (Peritoneal Metastases management)

Frequently Asked Questions (FAQ)

Common questions about Nocturne (FAQ)

Q: How quickly does Nocturne usually start working?

A: Studies and official product information indicate that the active ingredient in Nocturne is rapidly absorbed. Significant hypnotic effects typically begin in less than 30 minutes after taking the dose, and the official conditions for use state that the medication should be taken immediately before going to bed.


Q: Are there any common foods or drinks that interact with Nocturne?

A: Official product information states that the medication can generally be taken with or without food. However, the consumption of alcohol is formally prohibited due to the risk of severely intensifying central nervous system effects. Additionally, official warnings note that certain beverages like grapefruit juice may interact with some benzodiazepines, and regulatory information describes this combination as one that may require caution.


Q: Is there a generic version of Nocturne available?

A: Yes, Nocturne is the brand name for the generic drug temazepam. This active ingredient is also available as a generic version.


Q: Why do some people report feeling groggy the day after taking Nocturne?

A: Official product information notes that residual side effects, such as somnolence, dizziness, and a 'hangover effect,' can sometimes persist into the next day. Official guidelines state that a user must be able to commit to obtaining a full night’s sleep, generally defined as 7 to 8 hours, to reduce the potential for next-day impairment.


Q: Can Nocturne affect my ability to drive or operate machinery?

A: Yes. Due to the risk of side effects like drowsiness, dizziness, and impaired motor coordination, official labeling includes a warning against driving or operating dangerous machinery until the person understands how the medication may affect them upon waking.


Q: What is the purpose of the boxed warning, if any, for Nocturne?

A: The drug carries a prominent warning, often referred to as a Boxed Warning, to alert users to serious safety risks. These risks include abuse, misuse, addiction, and physical dependence. There is also a severe warning regarding the potential for life-threatening respiratory depression when the drug is used with opioid medications.


Q: What kind of studies were used to get Nocturne approved?

A: Regulatory approval for the primary use of Nocturne is generally based on clinical trials and sleep laboratory studies. These studies examine the drug’s effectiveness in reducing the number of awakenings during the night and increasing the overall duration of sleep in patients with insomnia.


Q: Does Nocturne interact with grapefruit or grapefruit juice?

A: Specific warnings exist that grapefruit juice may interact with certain benzodiazepines by slowing the rate at which the body breaks them down. This interaction could lead to higher levels of the drug in the bloodstream. Due to this potential, regulatory information describes this combination as one that may require caution.


Q: Why are the instructions about use conditions so specific for Nocturne?

A: Official instructions, such as taking the dose right before bed and committing to 7 to 8 hours for sleep, are highly specific for safety reasons. Regulatory documents state that these conditions are designed to minimize the risk of experiencing common side effects like next-day drowsiness and temporary memory problems.


Q: Does Nocturne require a special type of prescription?

A: Yes. According to regulatory documents, the drug is classified as a Schedule IV controlled substance. This classification means prescriptions are subject to specific federal and state regulations regarding how they are issued, handled, and refilled.


Q: Is it normal for Nocturne to cause strange dreams?

A: Official adverse reaction reports indicate that increased dreaming and nightmares have been reported by some users of the active ingredient in Nocturne. This is noted in regulatory information as a less common type of adverse reaction.


Q: Does taking Nocturne with certain supplements change its effect?

A: Regulatory guidance recommends that patients discuss all supplements being used with their healthcare team. This is particularly important for supplements that may have sedative effects, such as kava or valerian, as combining them with Nocturne could lead to excessive sedation.


Q: Can Nocturne affect blood pressure?

A: Official adverse reaction reports indicate that the medication can affect the cardiovascular system. Rare side effects noted in regulatory documents include changes in blood pressure, such as hypotension (low blood pressure) and, less commonly, mild systolic hypertension.


Q: Is there a link between Nocturne and changes in appetite or weight?

A: Yes, official regulatory labeling lists certain metabolic changes as reported adverse reactions. These include anorexia, which is a loss of appetite, and changes in body weight, specifically weight loss.


Q: Can Nocturne be taken with common over-the-counter pain relievers?

A: Official labeling warns that Nocturne will add to the effects of other Central Nervous System (CNS) depressants. If an over-the-counter pain reliever causes drowsiness, the combination may increase the risk of sedation and other CNS side effects.


Q: Can Nocturne be taken with or without food?

A: The official product information indicates that the medication can be taken by mouth with or without food. The official administration guidelines require the medicine to be taken immediately before going to bed.


Q: What is the half-life of Nocturne?

A: Pharmacokinetic studies indicate that the mean elimination half-life of the active ingredient in Nocturne is typically reported to be between 8 and 20 hours. This measurement describes the time required for the concentration of the drug in the body to be reduced by half.


Q: Are there any patient registries or monitoring programs associated with Nocturne?

A: Yes, regulatory authorities have established a pregnancy exposure registry. The purpose of this program is to monitor outcomes for pregnant women who may have been exposed to the drug.

How should Nocturne be stored and disposed of?

Storage and Disposal Requirements

Nocturne (temazepam) must be stored at a Controlled Room Temperature, specifically between 20 C and 25 C (68 F and 77 F). The medication must be kept in its original container, which should remain tightly closed to protect it from moisture and excess heat. The official label requires that the product not be frozen.

Due to its classification as a controlled substance, the medication must be stored in a safe, secure location and strictly out of the sight and reach of children.

Unused or expired Nocturne should be disposed of by following official federal guidelines. Patients are directed to utilize a community drug take-back program if available. If no take-back option is available, the product must be mixed with an undesirable substance (e.g., used coffee grounds) and placed into a sealed container before being thrown into the household trash; the medicine must not be flushed down a toilet or sink.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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