Sedotime

Quick links to important sections

Sedotime

Method of action: Psycholeptics

Treatment option:

Medically reviewed

Rosario Oropesa

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 Sedotime

Property Description
Active ingredient Ketazolam
Form Tablets
Pharmacological class Benzodiazepine derivative, Anxiolytic
General purpose Relieving tension and excessive worry
Origin Synthetic substance

Sedotime: Definition and Pharmacological Class

Sedotime is a prescription-only medication whose active component is Ketazolam, which functions as a central nervous system depressant. It belongs to the benzodiazepine derivative class of drugs, specifically categorized as a psycholeptic agent within the broader anxiolytic group. This classification indicates the medication's designed purpose is to modulate brain activity, primarily to reduce emotional distress and physical tension. As a synthetic substance, Ketazolam is chemically distinct from naturally occurring compounds, and its structure places it within a specialized area of psychopharmacology, defined by its capacity to reduce the manifestations of anxiety. Ketazolam is a benzodiazepine derivative with established anxiolytic properties. This indicates the medication's intended use is to help diminish feelings of anxiety and nervousness in situations involving significant stress.

Composition, Origin, and Physical Form

The core composition of Sedotime is the single active ingredient, Ketazolam, formulated alongside solid pharmaceutical excipients to produce tablets for oral administration. A key characteristic of this compound is its function as a prodrug; upon ingestion, the body metabolizes it into other active molecules, primarily desmethyldiazepam, which is responsible for the majority of the therapeutic effects. This metabolic process is responsible for the medication's notable, long-acting duration of effect, which distinguishes its time profile from direct-acting compounds in the same class.

General Purpose and Benefit

The general purpose of Sedotime stems directly from its classification as an anxiolytic: it is intended to induce a state of calmness and relaxation. The medication achieves this through its primary anxiolytic action, which is directly aimed at settling heightened states of tension and worry. For instance, the medication may be employed to help reduce the excessive worry and restlessness associated with persistent anxiety. Additionally, its influence extends to providing skeletal muscle relaxant activity, which helps to alleviate physical symptoms like muscle stiffness or tension often accompanying emotional distress, offering comprehensive relief from these manifestations.

What side effects are possible with Sedotime?

Possible side effects and safety information

The safety profile of Sedotime (Ketazolam) is primarily characterized by the known effects of its pharmacological class, benzodiazepine derivatives, as documented in official regulatory sources.

Adverse Reactions Classification

The most frequently reported adverse reactions are associated with the Nervous System and are classified as common in official prescribing information. These include manifestations of central nervous system (CNS) depression, such as somnolence (drowsiness), dizziness, ataxia (impaired coordination), and confusion. Other commonly documented effects include asthenia (weakness) and fatigue. These reactions are most often noted at the initiation of treatment.

Serious Adverse Reactions and Risk Patterns

The use of Ketazolam exposes users to a risk of physical dependence and addiction, which are serious adverse reactions mandated for documentation in official labeling. The risk of developing tolerance and dependence increases significantly with higher doses and longer duration of use. Abrupt discontinuation after chronic exposure may lead to a severe withdrawal syndrome. Furthermore, the combination of this medicine with other CNS depressants, notably alcohol, significantly increases the risk of severe outcomes, including profound sedation and potentially life-threatening respiratory depression.

Population-Specific Safety Notes

Specific safety considerations are documented for certain populations. Older adults may exhibit increased sensitivity to CNS depressant actions, raising the risk of cognitive impairment and subsequent falls. The medicine is generally constrained for use in individuals with conditions such as severe hepatic insufficiency and myasthenia gravis, as stated in official contraindications. The substance is also classified as a Schedule IV controlled substance, reflecting the regulatory constraints due to its abuse potential.

Overdose and Emergency Response

Overdose of Sedotime (Ketazolam) is primarily associated with symptoms of excessive Central Nervous System (CNS) depression. Documented manifestations in regulatory labeling range from mild symptoms like drowsiness, confusion, lethargy, ataxia, and dysarthria to severe clinical states. In cases of significant exposure, particularly in mixed overdoses, the official profile lists life-threatening outcomes including coma, severe respiratory depression, and significant hypotension (circulatory depression).

The official regulatory response mandates that patients seek immediate medical attention or contact emergency services upon any suspected overdose, irrespective of initial symptom presentation. Urgent help is explicitly required when signs of exaggerated CNS depression or cardio-respiratory compromise are evident.

Overdose management, as defined in regulatory documents, centers on symptomatic and supportive treatment and continuous monitoring of vital functions. Supportive measures may include airway maintenance, gastric decontamination procedures, and fluid management for hypotension. Regulatory documents also note the existence of a specific antagonist, Flumazenil, but specify its use must be administered strictly under medical supervision. The official labeling highlights that elderly patients and individuals with pre-existing respiratory or hepatic impairment face an increased risk of severe outcomes.

Therapeutic Uses of Sedotime

What Sedotime Treats: Main Uses and Benefits

Sedotime (Ketazolam) is primarily used for providing symptomatic relief in clinical situations marked by heightened patient distress and the cluster of symptoms associated with anxiety disorders. The medication is generally applied across conditions characterized by periods of increased physiological or emotional tension, where short-term supportive relief is needed. Ketazolam is commonly used to help with alleviating anxious symptomatology.

The core indications for which Sedotime may be considered relevant include Generalized Anxiety Disorder, other psychoneurotic anxiety states, and the management of involuntary muscle spasms or spasticity in specific neurological contexts. It is also applied in settings that require temporary symptomatic assistance, such as during the initial phases of alcohol withdrawal.

“The medication is considered relevant for easing challenging symptoms that create noticeable interference with functional stability.”

By addressing these domains, Sedotime supports the patient during difficult episodes by easing distress, which may contribute to improved comfort and assists with maintaining functional stability when symptoms are more noticeable. This action contributes to easing the overall symptom load during symptomatic periods.


Quick Fact: Used for managing Excessive Worry and Physical Tension

Sedotime is commonly used to help manage the paired symptoms of pervasive excessive worry (psychic distress) and elevated physical tension (somatic discomfort), supporting patients through episodes of heightened discomfort.

Eligibility and Restrictions for Use

Official Population Eligibility for Sedotime (Ketazolam)

Official regulatory documents define the population eligible to use Sedotime (Ketazolam) by establishing clear exclusions and restrictions based on physiological status, age, and coexisting conditions. Use is generally established for adults but is strictly controlled for other groups.


Populations For Whom Use is Contraindicated

Sedotime is contraindicated and must not be used in populations presenting with the following official, labeled conditions:

  • Known Hypersensitivity to Ketazolam or other benzodiazepines.
  • Severe Hepatic Insufficiency (due to the risk of hepatic encephalopathy).
  • Severe Respiratory Insufficiency or Sleep Apnoea Syndrome.
  • Myasthenia Gravis or Acute Angle Glaucoma.

Age-Related and Conditional Restrictions

Population Group Eligibility Status (Regulatory Wording)
Paediatric Patients (under 18 years) Not recommended; safety and efficacy are not established [Source 2.5].
Older Adults (Geriatric) Use requires special caution; a reduced dose and close monitoring are necessary due to increased sensitivity and risk of falls [Source 2.5, 4.1].
Pregnancy (1st Trimester) Should not be used [Source 2.5].
Lactating Women Should not receive the medication, as it is excreted in breast milk [Source 2.5].

Additionally, caution is required for use in patients with a history of drug or alcohol abuse or those with chronic pulmonary insufficiency [Source 2.5, 4.1]. The medicine must not be used alone for treating depression due to the risk of worsening suicidal tendencies [Source 2.5, 4.1].

What should I know about interactions with other medicines?

Interactions with Other Medicines and Products

Sedotime’s official interaction profile is characterized by established pharmacodynamic and pharmacokinetic constraints. Co-administration with Opioids is identified as a contraindicated combination due to the documented risk of profound sedation and respiratory depression from enhanced central nervous system (CNS) depressant effects. This additive CNS depressant effect is also officially noted with co-administration of numerous other categories, including Antipsychotics (neuroleptics), Hypnotics, Antidepressants, Anesthetics, and Sedative Antihistamines. The action of co-administered muscle relaxants may also be potentiated.

Pharmacokinetic interactions center on metabolic interference. Compounds that inhibit specific hepatic enzymes (Cytochrome P450), such as certain strong CYP3A inhibitors (e.g., Ketoconazole, Itraconazole), may potentiate the action of the benzodiazepine, resulting in reduced clearance and increased drug exposure. The medicine is also officially contraindicated in cases of acute poisoning from CNS-active substances.

Regarding substances, concomitant intake of alcohol must be avoided, as the sedative effect is officially documented as being enhanced. Furthermore, regulatory documents note that caution is required when co-administering with other CNS-active drugs in patients with documented renal function alteration or organic brain alterations.

Mechanism of Action

Sedotime (ketazolam) is a prodrug that undergoes metabolic conversion in vivo, primarily to diazepam, which is the principal active moiety. This active substance distributes throughout the central nervous system (CNS), readily crossing the blood-brain barrier. The drug functions as a positive allosteric modulator of the GABA-A receptor complex, which is the primary inhibitory neurotransmitter receptor in the brain.


Sedotime's active metabolite binds to the specific benzodiazepine binding site located at the interface of the alpha and gamma subunits on the GABA-A receptor. This binding is distinct from the orthosteric site for the neurotransmitter gamma-aminobutyric acid (GABA). The allosteric interaction induces a conformational change in the receptor, which increases the affinity of GABA for its own binding site.


This enhanced GABA binding subsequently leads to an increased frequency of opening of the receptor's central chloride ion (Cl-) channel. The resultant greater influx of negatively charged Cl^- ions across the neuronal cell membrane causes hyperpolarization of the neuron. This molecular and intracellular event elevates the neuronal membrane potential, thereby decreasing cellular excitability and inhibiting action potential generation in targeted neural circuits. The system-level physiological consequence is a widespread modulation of neural activity, particularly in regions governing motor coordination, muscle tone, and cortical arousal.

Dosage and Administration Information

How Sedotime is Used

Sedotime (Ketazolam) is strictly intended for oral administration as a capsule or tablet, swallowed with liquid. The general administration pattern involves specific parameters concerning dosage, frequency, and treatment duration.

Official Dosing and Frequency

Guideline Standard Protocol
Route of Intake Oral only (capsule or tablet with liquid).
Adult Daily Dose Range is typically 15 mg to 75 mg per day. The initial dose is often set at 15 mg.
Frequency/Timing Taken as a single dose once daily, most commonly administered in the evening before sleep.

Usage Limitations and Adjustment

Treatment with Sedotime is strictly limited to short-term use; the total duration, including the final dose reduction phase, should generally not exceed 8 to 12 weeks. This restriction is standard for the drug class.

The dosage must be adjusted for specific patient groups. Older adults and frail individuals are instructed to use a reduced dose, starting treatment at the lowest possible amount (e.g., 15 mg). Furthermore, the medicine is generally not recommended for use in patients under 18 years of age.

When ending treatment, the daily amount must be gradually decreased (tapered). Abrupt cessation is avoided in the usage protocol and must be avoided.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Sedotime

The clinical evaluation of Sedotime (Ketazolam) involved official research, primarily Randomized Controlled Trials (RCTs) and comparative studies, that examined its role in two main clinical contexts. This research describes the measured changes in symptoms and the study populations involved, without providing guidance on treatment.

Evidence Supporting Use in Anxiety Disorders

Research explored the role of Sedotime in conditions characterized by fluctuating or episodic manifestations of anxiety disorders, including psychoneurotic anxiety states. Research was conducted using controlled trials focused on adult outpatients, often comparing the medicine against both an inactive substance and other established medicines in the same class.

Studies were conducted during periods of increased symptom activity and monitored specific outcomes. These outcomes included the severity of anxiety symptoms, assessed using standardized clinical rating scales, and monitored outcomes related to physical discomfort and tension. Findings describe patterns observed in these short-term trials, and the research contributes to the broader evidence landscape for how symptom intensity or variability was measured.

Evidence Supporting Use in Neurologic Muscle Spasticity

Sedotime was also evaluated in controlled trials related to neurologic muscle spasticity. This research explored short-term symptom changes in populations, including patients with spasticity due to conditions like Multiple Sclerosis or stroke.

Duration of Studies and Long-Term Follow-up

The majority of efficacy research was conducted over defined time intervals that were typically short-term, often lasting only a few weeks to one month. Some extended studies, however, explored responses over an intermediate period, with follow-up durations including periods of up to six months of continuous administration. These longer studies research examined parameters related to the potential development of tolerance and studies monitored symptom patterns upon the discontinuation of the medicine. However, evidence is limited for long-term outcomes, and there is insufficient information for periods beyond the six-month study follow-up.

Research Gaps and Remaining Uncertainty

The research highlights what is known—and what is still uncertain—about Ketazolam. Follow-up durations were limited in many of the core efficacy trials, which means that the long-term effects are not fully established in the research record. Furthermore, the broader body of evidence for the benzodiazepine class underscores the importance of continued research into managing physical dependence and exploring withdrawal phenomena when the medicine is stopped.

Frequently Asked Questions (FAQ)

Common questions about Sedotime (FAQ)


Q: How quickly does Sedotime usually start to work?

Sedotime is classified as a prodrug, meaning the body must metabolize it into its active form before its therapeutic effects begin. This metabolic process contributes to its long duration of effect. Official documents do not typically specify an exact timeframe for the onset of its effects.


Q: How long does the effect of one dose of Sedotime last in the body?

The active substance that Sedotime converts into has a long presence in the body. According to official product information, this active substance has a long elimination half-life, which has been noted to range from 26 to 200 hours. This long half-life supports its classification as a long-acting medication.


Q: What is 'rebound insomnia' and is it a concern with Sedotime?

Official information for the benzodiazepine drug class states that stopping treatment, especially when done abruptly, may lead to a withdrawal syndrome. Symptoms associated with discontinuation may include a temporary worsening of the condition being treated, which can involve a return of sleep difficulty. This risk is related to the drug's established potential for physical dependence.


Q: What happens if Sedotime is stopped suddenly?

Regulatory documents advise that abrupt discontinuation of Sedotime is not an approved usage protocol and must be avoided. Stopping the medicine suddenly after chronic use may lead to a severe withdrawal syndrome, as stated in official labeling. Regulatory documents specify that any change to the regimen involves a required gradual decrease (tapering).


Q: Is there a maximum length of time Sedotime is typically recommended for?

According to official regulatory sources, treatment with Sedotime is limited to short-term use. The total duration of use, which includes the phase when the dose is gradually reduced, should generally not exceed 8 to 12 weeks.


Q: Is it possible to take Sedotime only 'as needed'?

Official regulatory use conditions emphasize a once-daily dosing schedule and do not officially describe a regimen for use only on an 'as needed' (PRN) basis. The drug is prescribed to reduce persistent states of tension and worry.


Q: Does Sedotime affect a person's ability to concentrate during the day?

Official information describes the drug as causing central nervous system (CNS) depressant effects. Common adverse reactions listed in official information include somnolence (drowsiness) and confusion, which can affect cognitive functions such as the ability to concentrate.


Q: Why is it important to tell a doctor about all other medications before taking Sedotime?

It is critical due to the risk of serious drug-drug interactions. These risks include enhanced central nervous system depression when combined with certain other drugs, and metabolic interference that can reduce the body's ability to clear the drug. The need to report all substances is critical to understand the potential for these interactions.


Q: Can Sedotime cause dizziness or lightheadedness?

Yes, official prescribing information lists dizziness as a common adverse reaction associated with the drug. Symptoms often described in regulatory documents for this medication class, such as lightheadedness, are related to its central nervous system effects.


Q: Is Sedotime the same type of drug as older sleeping pills?

Sedotime is officially classified as a benzodiazepine derivative and a psycholeptic agent. This places it in the benzodiazepine class, which is chemically distinct from other hypnotic agents, such as barbiturates.


Q: How is Sedotime different from over-the-counter sleep aids?

Sedotime is a prescription-only medicine classified as a Schedule IV controlled substance by regulatory bodies, reflecting its potential for abuse and dependence. In contrast, over-the-counter aids typically include non-scheduled antihistamines or dietary supplements.


Q: Does Sedotime affect the 'natural' sleep cycle?

Research on the benzodiazepine class, which Sedotime belongs to, indicates that these agents can alter sleep architecture. This includes changes to the structure and stages of the sleep cycle that are measured in clinical settings.


Q: Are there common but temporary side effects when first starting Sedotime?

The most common adverse reactions, such as somnolence (drowsiness), dizziness, and fatigue, are officially noted as being most often seen at the initiation of treatment. These effects are described as being most often seen at the initiation of treatment.


Q: What is the recommended timeframe to wait between taking Sedotime and driving?

Official warnings state that the drug may impair a person’s ability to drive or operate machinery due to effects like sedation and confusion. Official information states that specific timeframes for safety are based on individual patient response and must be determined by a healthcare professional.


Q: Are there known long-term effects associated with Sedotime use?

Regulatory research documentation notes that the majority of efficacy research was conducted over short-term intervals. Consequently, the long-term effects are not fully established in the research record for periods beyond the limited study durations.


Q: Does Sedotime lose effectiveness over time (tolerance buildup)?

The risk of developing tolerance, where the drug may lose effectiveness over time, is explicitly documented in the official safety information. This potential was specifically examined in extended studies of the medicine.


Q: Are there different forms of Sedotime (e.g., tablet, liquid)?

Official prescribing information defines the authorized forms for standard oral administration as a capsule or tablet. Other forms like a liquid solution or injection are not typically listed for general use.


Q: Is it true that Sedotime can cause sleep-related behaviors (like sleepwalking)?

Official warnings for the benzodiazepine drug class indicate that some agents can cause unusual and potentially complex sleep-related behaviors, such as sleepwalking, sleep-driving, or talking on the phone while not fully awake. Official warnings state that the occurrence of such behaviors requires consultation with a healthcare professional.

How should Sedotime be stored and disposed of?

Storage Requirements

Sedotime (Ketazolam) tablets must be stored according to specific regulatory conditions to maintain their stability and effectiveness.

Storage Factor Official Requirement
Temperature Store at room temperature, generally below 30°C.
Protection Keep the product protected from light and moisture.
Container Keep the medicine in its original package and ensure the container is tightly closed.
Prohibitions Do not refrigerate or freeze the tablets.
Child Safety Keep out of the sight and reach of children.

Disposal Instructions

As a controlled substance, Sedotime disposal requires careful adherence to local pharmaceutical waste regulations. Unused or expired medication should be returned through an approved drug take-back program or disposed of according to the specific guidance for controlled substances. Do not dispose of the tablets into wastewater (sinks or toilets) to prevent environmental contamination.

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

Available in countries:

Equivalent of Sedotime found in:

A-Z Index: