Sedorm

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Sedorm

Method of action: Hypnotic

Treatment option: Insomnia

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 Sedorm

Property Description
Active ingredient Zopiclone (racemic mixture)
Form Oral tablet
Pharmacological class Sedative-Hypnotic (Cyclopyrrolone)
Common use Short-term management of sleep difficulties
Origin Synthetic

What Type of Medicine is Sedorm and Its Classification?

Sedorm is a prescription medication defined by the active pharmaceutical ingredient, Zopiclone (INN), an agent that is clinically recognized for its role as a sedative-hypnotic. Zopiclone belongs to the unique cyclopyrrolone chemical family, structurally positioning it distinctively from older hypnotic agents like benzodiazepines. This chemical identity places Zopiclone within the specialized therapeutic group known as "Z-drugs," which are specifically employed for the short-term management of sleep difficulties. This medicine is typically indicated for adults experiencing difficulties with falling asleep or maintaining continuous sleep.

Zopiclone: Composition, Origin, and Available Form

The composition of this medicine centers on the single active substance, Zopiclone, which is a synthetic small molecule produced for its sleep-inducing properties. Sedorm is supplied as an oral tablet, the standard dosage form designed for convenient oral administration. Pharmacological studies support the compound's effect profile, confirming its role as a hypnotic agent to facilitate sleep initiation and maintenance. While Zopiclone is typically marketed as a racemic mixture, it is chemically related to its isolated, active component, eszopiclone (the S-stereoisomer), which is also used globally for the treatment of insomnia.

How Does Sedorm Generally Help Sleep?

The general therapeutic purpose of Sedorm is to facilitate the onset of sleep and improve its continuity, effectively addressing the primary symptoms of insomnia. The drug functions by acting as an agonist at central receptors associated with the \gamma-aminobutyric acid type A (GABAA) macromolecular complex. By enhancing this natural inhibitory system, the medication encourages a gentle slowing of nerve activity within the central nervous system, thereby inducing a state of calm and drowsiness that supports the brain's ability to transition into and maintain a natural, restful sleep cycle.

What side effects are possible with Sedorm?

Official Regulatory Safety Profile

The safety profile of Sedorm (Zopiclone) is defined by its classification as a central nervous system (CNS) depressant, documented across official governmental regulatory sources. Adverse reactions are systematically categorized by both frequency and the body systems they affect, providing a structured understanding of potential risks.

Adverse Reactions by Frequency

Classification Examples of Officially Listed Effects
Common Dysgeusia (bitter or metallic taste), somnolence (residual sleepiness), dry mouth.
Uncommon Dizziness, headache, agitation, nausea, vomiting, or nightmares.
Rare Anterograde amnesia, aggression, confusion, rash, pruritus (itching), or falls (noted particularly in older adults).
Very Rare Severe hypersensitivity reactions such as angioedema or anaphylactic reaction.

Documented Serious Risks and Safety Patterns

Official labeling highlights the potential for serious adverse reactions. Complex sleep behaviors, including sleep-driving and other activities performed while not fully awake, are explicitly documented as serious risks. The risk of developing physical and psychological dependence is noted to increase with the duration of use, particularly if the medicine is taken for longer than four weeks. Abrupt discontinuation may lead to a transient recurrence of original symptoms known as rebound insomnia. The effects on the CNS can result in impaired alertness and motor coordination the morning after administration.

Population-Specific Safety Considerations

The regulatory profile outlines specific constraints for certain groups. The medicine is contraindicated in individuals with severe hepatic (liver) impairment and in those with severe respiratory compromise, such as severe sleep apnoea syndrome. An increased risk of falls is documented, predominantly in older adults, due to effects on motor and cognitive performance. The safety and efficacy of Zopiclone have not been established in patients under 18 years of age.

Overdose and Emergency Response

Overdose Manifestations and Signs

Overdose involving Zopiclone (Sedorm) is officially documented as presenting with a spectrum of Central Nervous System (CNS) depression. Clinical signs may range from excessive drowsiness and confusion to more severe states, including coma [Source 2.7]. Regulatory information notes other manifestations such as ataxia (incoordination), hypotonia (muscle weakness), and hypotension (low blood pressure) [Source 1.2, 2.7]. These effects concern the CNS, respiratory, and cardiovascular systems.

Life-Threatening Risks and Context

While overdose with the medication alone is generally not classified as life-threatening, regulatory bodies emphasize that the risk of severe respiratory depression, coma, and death is significantly increased upon co-ingestion with other CNS depressants, particularly alcohol and opioids [Source 1.1, 2.7]. Individuals with underlying respiratory or hepatic disorders are noted to have an increased risk of serious complications [Source 1.4].

Mandated Emergency Actions

Official guidance requires individuals to seek immediate medical attention and contact emergency services in any suspected overdose scenario. Management must focus on general symptomatic and supportive treatment provided in an adequate clinical setting, which includes continuously monitoring respiratory and cardiovascular functions [Source 2.7]. Although the specific antagonist Flumazenil may be considered, continuous support remains the primary focus. Haemodialysis is documented as being of no value due to the drug’s volume of distribution [Source 2.7].

Therapeutic Uses of Sedorm

What Sedorm Treats: Main Uses and Benefits

Sedorm is primarily used for the short-term symptomatic relief of severe insomnia, in situations where patients experience difficulty falling asleep and symptoms that interfere with daily functioning, such as disruptive nighttime awakenings. The medicine may assist with falling asleep more easily and contributes to improved comfort during periods of heightened symptoms of sleep disruption, supporting sleep continuity.

This medication is generally applied during phases where the patient experiences heightened discomfort, providing temporary assistance that supports a sense of stability during challenging phases. The medication is considered relevant for easing symptoms that accompany conditions marked by increased physiological stress or conditions where functional stability becomes affected, such as in supportive care settings.

Its role is applied in addressing symptom clusters that may become intense or disruptive, such as symptoms related to heightened physiological activity and symptoms that interfere with daily functioning. This supports the patient during difficult episodes by easing distress, contributing to a more consistent and prolonged duration of rest.

“This symptomatic support helps ease the overall symptom burden of sleeplessness, which is commonly used to help with comfort during periods of heightened discomfort.”


Quick Fact: Relief for Sleep Onset Impairment Sedorm is commonly used when short-term symptomatic assistance is needed to address the distressing symptom of being unable to initiate sleep, which significantly interferes with daily functioning.

Eligibility and Restrictions for Use

The eligibility for using Sedorm (Zopiclone) is strictly defined by regulatory documents, distinguishing between approved populations, restricted use, and absolute contraindications.

Contraindicated Populations

The medicine is contraindicated and must not be used by patients with a known hypersensitivity to zopiclone, or specific medical conditions including Myasthenia gravis (severe muscle weakness), severe respiratory failure, severe sleep apnoea syndrome, or severe hepatic insufficiency (severe liver problems). Individuals who have previously experienced complex sleep behaviors (e.g., sleepwalking) after taking zopiclone are also excluded from use.

Age-Group and Condition-Specific Rules

Population Category Eligibility Status (Official Labeling)
Children and Adolescents (le 18 years) Not recommended; safety and efficacy not established.
Elderly Patients (ge 65 years) Eligible, but treatment must be initiated with a lower dose.
Pregnancy Not recommended; only permitted in the last three months on strict medical indication.
Lactation Should be avoided as the drug is excreted in breast milk.
Renal/Hepatic Impairment (Non-Severe) Should start treatment with a lower dose due to potential sensitivity.

These limitations structure the eligibility profile, requiring conditional use or exclusion based on age, organ function, and specific medical history.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for Sedorm (Zopiclone) is defined by pharmacokinetic and pharmacodynamic patterns documented in regulatory sources.

Interaction Scope

Property Official Regulatory Statement
Product Categories with Documented Interactions Central Nervous System (CNS) Depressants; CYP3A4 Inhibitors; CYP3A4 Inducers.
Specific Interacting Medicines Opioids (due to severe respiratory risk); Ketoconazole (potent CYP3A4 inhibitor); Rifampicin (potent CYP3A4 inducer).
Mechanistic Basis Pharmacokinetic: Zopiclone is metabolized by CYP3A4; inhibitors increase systemic exposure (Cmax/AUC) while inducers decrease it. Pharmacodynamic: Additive central depressive effects.
Interaction-Related Restrictions Alcohol (Ethanol) is not recommended; Co-prescribing with Opioids must be reserved only for cases where alternative treatment options are inadequate.
Population-Specific Interaction Notes Clearance is reduced in patients with severe hepatic impairment, leading to increased exposure and heightened interaction sensitivity in this group.

Connection to the Interaction Profile

The profile is structured around two major constraints. Firstly, co-administration with other CNS depressants results in an officially documented enhancement of central depressive effects, requiring caution. Secondly, the metabolism via the CYP3A4 pathway means that substances like Ketoconazole and Rifampicin significantly alter Zopiclone’s systemic exposure, a pharmacokinetic interaction noted in labeling. The highest severity risk documented relates to the potential for profound respiratory depression from co-use with Opioids.

Mechanism of Action

How Sedorm Works

Sedorm works by selectively modulating specific receptor- or enzyme-mediated signaling within key biological systems. This action initiates mechanistic cascades that influence feedback regulation and alters baseline pathway activity. The drug’s mechanism involves two primary domains: influencing the activity of signaling pathways and modulating intracellular signaling.


Modulation of Key Neurotransmitter Systems

This domain covers Sedorm’s action on systems where specific transmitters or mediators dominate, such as GABA or glutamate pathways. By initiating or suppressing signaling sequences at these targets, Sedorm alters the magnitude and duration of physiological responses by limiting the impact of excessive mediator activity and influencing downstream effects within the central nervous system.


Regulation of Intracellular Signaling Cascades

Sedorm engages mechanisms that influence feedback regulation within pathways at the cellular level. This involves modifying early molecular steps—for example, affecting ion channel conductance or protein phosphorylation—that shape systemic physiological outcomes. This results in modified pathway activity within the targeted system, leading to predictable physiological adjustments and affecting processes determined by distinct signaling patterns.

Dosage and Administration Information

Sedorm (Zopiclone) is an oral medication governed by strict guidelines that define its administration, frequency, and duration. The medicine is taken exclusively by the oral route, with the tablet required to be swallowed whole and not crushed or chewed.

The standard administration schedule involves a single dose once daily taken immediately before retiring for the night. For most adults, the recommended dose is 7.5 mg, and this dosage should not be exceeded. A key procedural instruction is that the dose must only be taken when the patient anticipates achieving at least 7 to 8 hours of uninterrupted sleep following administration.

Dosage adjustments are required for several patient groups. Treatment should be initiated at a reduced dose of 3.75 mg for elderly individuals, as well as patients with impaired hepatic (liver) or renal (kidney) function. The use of this medicine is not authorized for children and adolescents under 18 years of age.

Treatment duration must be limited to the shortest time necessary, and the course must not exceed four weeks, including the period designated for gradual discontinuation. If a dose is missed at bedtime, the instruction is to skip the missed dose entirely and take the next dose at the usual scheduled time the following night, never attempting to compensate with an extra dose. The required gradual tapering of the dosage formally concludes the treatment protocol.

Recent Clinical Evidence

Research evidence / Overview of studies for Sedorm (Zopiclone)

The evidence base for Sedorm, whose active ingredient is Zopiclone, is rooted in its clinical development program. This primarily involved short-term, randomized controlled trials (RCTs) and systematic evaluations. This overview describes the scope of the clinical research conducted on Sedorm, detailing the types of studies performed and the aspects of the medicine's effects that remain scientifically limited or uncharacterized.


Evidence for Short-Term Insomnia Symptoms

The scientific record largely centers on studies exploring short-term changes during episodes of sleep difficulties. The core research was evaluated in numerous short-term RCTs, often comparing the medicine to an inactive pill (placebo), which were applied in studies examining patient-reported experiences of insomnia.

The research was evaluated in numerous short-term RCTs, where studies monitored changes in sleep patterns using patient diaries and, in some settings, specialized laboratory measurements. The research consistently describes measurements related to the time patients reported taking to fall asleep (known as sleep onset latency). Additionally, studies examined whether there were measurements related to changes in sleep maintenance, such as the amount of time patients reported spending awake after initially falling asleep. This evidence contributes to the broader evidence landscape regarding symptom patterns during episodes where symptoms become more noticeable.


Studies in Specific Patient Populations

Sedorm was studied for its short-term use not only in the general adult population but also in certain specific patient groups where sleep disturbances are commonly encountered. Research examined the use of the medicine in older adults (typically those aged 65 and above) and monitored for differences in outcomes and dosage requirements in this population. Zopiclone was also evaluated in patients with advanced malignant disease (cancer) and co-existing insomnia. Studies conducted during periods of increased symptom activity examined how the medicine influenced sleep quality in this supportive care setting, research exploring short-term symptom changes related to comfort.


What Remains Uncertain or Limited in the Research

A significant characteristic of the research record is that the follow-up durations were limited. The majority of controlled studies assessed changes over treatment periods of only one to four weeks of continuous use. There is limited information for long-term outcomes regarding the use of Zopiclone beyond this short timeframe. Long-term effects are not fully established, meaning research provides limited insight into how the observed sleep patterns may be maintained over many months or years. Subgroup findings are uncertain or have mixed results when looking at specific physiological measures of sleep in smaller patient groups.

Key Studies & References

  1. Public Assessment Report Scientific discussion Zopiclone Jubilant 7.5 mg, film-coated tablets (zopiclone) NL/H/2914 - Geneesmiddeleninformatiebank (Regulatory Document)

Frequently Asked Questions (FAQ)

Common questions about Sedorm (FAQ)

Q: Is Sedorm a controlled substance, and will it show up on a drug test?

Drug-X (now Sedorm) is not classified as a federally controlled substance in the U.S. While not typically included on standard workplace drug test panels, this cannot be guaranteed for all testing scenarios (such as specialized or extended panels). Individuals may consider discussing their medications with the testing facility or their healthcare provider to clarify testing procedures and avoid potential complications.

Q: Can I drink alcohol while taking Sedorm?

Official drug information generally advises avoiding or limiting the consumption of alcohol while taking Sedorm. Combining the two substances can significantly increase the risk of central nervous system side effects like severe drowsiness, dizziness, and impaired judgment. Because of the potential for these effects, operating heavy machinery or driving is not recommended when Sedorm is combined with alcohol.

Q: What should I do if I miss a dose of Sedorm?

The recommended approach for a missed dose is typically to take it as soon as it is remembered. However, if it is nearly time for the next scheduled dose (e.g., within 4 hours, according to typical instructions), the missed dose is usually skipped, and the regular schedule is resumed. Official labeling advises against doubling up doses to compensate for a missed dose, as this may increase the risk of side effects. If multiple doses are missed, consultation with a healthcare provider is generally recommended for guidance on resuming treatment.

How should Sedorm be stored and disposed of?

Storage and Stability

The official storage profile for Sedorm (Bromisoval) mandates specific conditions to maintain product quality and stability until the expiration date. The medicine must be stored at Controlled Room Temperature, typically defined as 15 C to 30 C (59 F to 86 F), and protected from excessive heat and humidity.

To ensure integrity, the product must be kept in its original container with the lid tightly closed. It must not be used after the expiration date printed on the label. Due to security concerns related to prescription drugs, Sedorm must be stored in a secure location that is inaccessible to children and unauthorized persons.

Disposal Requirements

Disposal must comply with federal, state, and local regulations. Unused or expired Sedorm must not be flushed down the toilet or placed in household trash, as this is discouraged by regulatory authorities to prevent environmental contamination and misuse. The best method for disposal is utilizing an official drug take-back program or authorized collection facility.

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

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