Overview of Felison

Quick Facts

Property	Description
Active ingredient	Flurazepam Hydrochloride
Form	Capsules (Oral Route)
Pharmacological class	Benzodiazepine Derivative, CNS Depressant
General purpose	Hypnotic Agent (to promote rest)
Origin	Synthetic

What is Felison?

Felison: Definition, Type, and Pharmacological Class

Felison is a synthetic pharmaceutical preparation defined by its single active component, Flurazepam Hydrochloride. It is fundamentally classified as a benzodiazepine derivative and, functionally, as a Central Nervous System (CNS) Depressant. This categorization confirms its action is dedicated to slowing down nerve activity within the brain and spinal cord. Flurazepam carries the Anatomical Therapeutic Chemical (ATC) code N05CD01, a designation for hypnotics and sedatives intended to promote a state of calm and rest.

Composition and Purpose: Flurazepam as a Hypnotic Agent

The drug is supplied as a single-ingredient product consisting of the Flurazepam Hydrochloride salt, delivered in capsules for administration via the oral route. Its primary, general purpose is to function as a hypnotic agent, meaning its core benefit is to facilitate the onset of sleep and aid in maintaining a restful state. This therapeutic capacity is clinically recognized for individuals experiencing difficulties with sleep continuity, representing a typical use scenario for this class of medicine. It is utilized to assist with falling asleep and maintaining sleep throughout the night.

The Distinction of a Long-Acting Benzodiazepine

Flurazepam is distinguished within the benzodiazepine class by its classification as a long-acting agent. This characteristic is tied to its active metabolite, N-desalkylflurazepam, which has a prolonged half-life. The prolonged duration of action inherent to this type of compound is a key differentiating factor, enhancing its utility in promoting continuous sleep throughout the night, unlike other forms designed solely for quick onset. Felison is recognized as a prescription-only medicine, underscoring its specific controlled use profile.

Regulatory References

What side effects are possible with Felison?

Possible Side Effects and Safety Information

The official safety profile for Flurazepam (Felison) is defined by its Central Nervous System (CNS) depressant activity, which dictates the type and frequency of documented adverse reactions. These reactions are classified by regulatory agencies across various System-Organ Classes.

Frequency-Classified Adverse Reactions

Classification	Examples of Documented Adverse Reactions
Common	Drowsiness, dizziness, loss of coordination (ataxia), light-headedness, and staggering. These effects are documented as more pronounced in older adults and debilitated patients.
Rare/Very Rare	Reactions reported in these tiers include headache, euphoria, hallucinations, slurred speech, visual impairment, and, very rarely, severe anaphylactic/anaphylactoid reactions, including angioedema.

Serious Safety Considerations

The labeling highlights critical safety concerns. These include the risk of Complex Sleep-Related Behaviors, such as performing activities like "sleep-driving" while not fully awake, with subsequent amnesia for the event. The use of Flurazepam may also lead to the worsening of pre-existing depression and increase the risk of suicidal ideation.

Duration and Population-Specific Safety Notes

Dependence and Tolerance may develop with continued use, and abrupt discontinuation can precipitate withdrawal reactions or rebound insomnia. For older adults, there is an increased risk of oversedation and accidental falls. The medicine is contraindicated in conditions such as known hypersensitivity, severe respiratory insufficiency, and severe hepatic impairment. Furthermore, a Boxed Warning is in place regarding the potentially fatal risk of profound sedation and respiratory depression when Flurazepam is used concurrently with opioids.

Overdose and Emergency Response

Overdose and when to seek help

Overdose of Felison (Flurazepam) is documented in regulatory prescribing information and primarily results in manifestations of Central Nervous System (CNS) depression. The clinical presentation may begin with signs such as drowsiness, confusion, and ataxia (loss of coordination), potentially progressing to coma and loss of consciousness.

Documented Severe Outcomes and Action Required

Official labeling recognizes the risk of severe and life-threatening outcomes, including respiratory depression and death, particularly when the medicine is taken with higher doses or alongside other CNS depressants. Elderly or debilitated patients are noted to be at an increased risk for more severe toxicity, such as profound oversedation.

Regulatory authorities mandate that individuals must seek immediate medical attention upon any suspected overdose. Emergency services should be immediately contacted (e.g., 911 or equivalent) if the individual has collapsed, is experiencing trouble breathing, or cannot be aroused. Management is defined as symptomatic and supportive treatment. The benzodiazepine antagonist Flumazenil is available for use in management, though its administration is associated with the documented risk of precipitating seizures.

Therapeutic Uses of Felison

What Felison Treats: Main Uses and Benefits

Felison (Flurazepam) is commonly used for the management of insomnia, a sleep disorder characterized by difficulties with sleep quality and duration. The medication is indicated for symptomatic management in conditions characterized by periods of heightened symptoms.

Treatment of Sleep Initiation Difficulties

The medication is used for managing symptom clusters that may become intense or disruptive, including difficulty falling asleep, frequent nocturnal awakenings, and early morning awakenings. It is considered relevant for patients experiencing transient or short-term insomnia, as well as those with recurring insomnia who require support for sustained sleep.

“This medication supports a faster onset of rest and contributes to easing the overall symptom load by promoting sleep continuity throughout the night.”

This application assists with maintaining a sense of stability when symptoms are more noticeable, providing supportive relief that helps patients cope more steadily with symptom fluctuations.

Quick Fact

Property	Description
Supportive Management for	Difficulty falling asleep, frequent waking, premature awakening
Use Category	Symptomatic management of sleep disorders
Key Benefit	Supports sustained sleep continuity and faster onset of rest
Contextual Relevance	Transient, short-term, and recurring insomnia

Regulatory References

NIH DailyMed official labeling

Eligibility and Restrictions for Use

Who Can and Cannot Use Felison?

The population eligibility for Felison (Flurazepam) is strictly defined by regulatory authorities, establishing specific groups who must not use the medicine and those who require conditional use.

Eligibility Classification	Population/Condition
Contraindicated	Pregnancy or planned pregnancy.
Contraindicated	Known hypersensitivity to Flurazepam or other benzodiazepines.
Contraindicated	Severe hepatic insufficiency (severe liver failure).
Contraindicated	Severe impairment of respiratory function (e.g., severe sleep apnea).
Contraindicated	Myasthenia Gravis.

Age- and Condition-Based Restrictions

Use is not recommended for pediatric patients (persons under 15 years of age) because safety and effectiveness have not been established.

Adults are the approved population. However, elderly or debilitated patients typically require conditional use with mandatory caution.

Conditional use is also applied to patients with non-severe hepatic or renal impairment and those with a history of drug or alcohol dependence. For breastfeeding mothers, use is generally not recommended due to the potential for the long-acting drug metabolite to affect the infant.

What should I know about interactions with other medicines?

Felison's official interaction profile is characterized by a significant risk of pharmacodynamic reinforcement with other Central Nervous System (CNS) depressants. Co-administration with substances like Opioids is associated with a documented risk of profound sedation, respiratory depression, coma, and death. Due to this severity, combinations with Alcohol and Sodium/Potassium Oxybates are classified as contraindicated combinations by regulatory authorities.

The profile also addresses pharmacokinetic interactions that modify drug exposure. Certain medicines, such as Cimetidine and Disulfiram, may cause decreased plasma clearance by inhibiting metabolism, which formally increases Felison's systemic levels. Conversely, strong enzyme inducers, including Apalutamide and Rifampin, are documented to enhance metabolism and consequently decrease the drug's effect.

Official warnings specify timing-based constraints: the potential for severe additive CNS effects is noted to continue for several days following discontinuance of the medicine, a restriction tied to the prolonged half-life of its active metabolites. Furthermore, the risk of adverse outcomes is officially stated to increase substantially in elderly and debilitated patients and those with hepatic impairment, where slower drug removal results in heightened systemic exposure and sensitivity.

Mechanism of Action

How Felison Works

Felison acts as a positive allosteric modulator within the central nervous system, targeting the gamma-aminobutyric acid type A (GABAA) receptor complex. It binds specifically to the benzodiazepine site on the receptor, which does not directly activate the ion channel, but instead induces a conformational change.

This allosteric interaction increases the affinity of the inhibitory neurotransmitter GABA for its primary binding site. The resulting mechanistic cascade potentiates GABA's effect, leading to a higher frequency of chloride ion (Cl^-) channel openings. The subsequent influx of negative ions causes neuronal hyperpolarization, which suppresses the neuron’s excitability and reduces action potential firing rates.

Felison is metabolized into active compounds, such as desalkylflurazepam, which maintain this GABA A-mediated inhibitory mechanism. The sustained inhibitory activity results in the modulation of overactive physiological responses within targeted neural circuits, establishing a shift toward a regulated state of cellular activity.

Dosage and Administration Information

How to Use Felison: Official Administration Guidelines

The administration of Felison (Flurazepam Hydrochloride) follows an established profile which defines the route, dosage, frequency, and duration of use.

Administration Scope

Instruction Entity	Guideline
Route of administration	The medicine is taken exclusively via the oral route, by swallowing the capsule.
Dosing schedule	Standard adult dosing ranges from 15 mg to 30 mg once daily. The lowest effective dose is utilized, and the maximum daily dose is 30 mg.
Timing	Administration occurs just prior to going to bed (at bedtime), not earlier.
Age-group rules	Older Adults/Debilitated: The dose is limited to an initial level of 15 mg at bedtime. Pediatric: Use is generally not recommended for individuals under 15 years of age.
Missed-dose rules	A missed dose is skipped entirely; a double dose is not taken.

Procedural Structure and Course Duration

The established protocol limits the use of Felison to short-term treatment. The course typically does not exceed 7 to 10 consecutive days, with a maximum treatment duration of four weeks, inclusive of the time required for dose reduction. This constraint governs the overall use protocol of the medicine. The administration pattern specifies that the capsule is only taken when a patient can secure a full night’s sleep (seven to eight hours) before required wakefulness. Discontinuation of therapy involve a gradual dose reduction (tapering) to manage the cessation process.

Recent Clinical Evidence

Research Evidence: Overview of Studies for Felison

Evidence for Use in Short-Term Insomnia

Research on Flurazepam primarily involves Randomized Controlled Trials (RCTs), study designs used to examine symptom patterns in individuals with insomnia under controlled conditions, often comparing the agent to a non-active placebo. These studies are relevant in trials assessing short-term or episodic symptom patterns and are typically used in research exploring short-term symptom changes. Studies monitored outcomes related to difficulty falling asleep (sleep initiation) and frequent waking or early morning waking (sleep maintenance), which are common manifestations of conditions characterized by fluctuating or episodic symptoms.

Research highlights measured changes during the study period, particularly regarding observed sleep continuity patterns. The findings describe patterns observed in the studies where the active agent data show patterns related to measured differences in sleep duration over the acute study period. However, research exploring short-term symptom changes does not determine whether an individual will respond similarly, as study results reflect the specific conditions under which they were conducted.

Objective vs. Subjective Outcome Measures in Trials

Studies exploring the effects of Felison have tracked two main types of data: objective and subjective. Objective measures are collected during specialized sleep laboratory studies (polysomnography). These studies monitored the physiological dimensions of sleep, such as Total Sleep Time (TST), Sleep Efficiency, and the time taken to fall asleep (Sleep-Onset Latency). Subjective measures were also monitored, applied in studies examining patient-reported experiences, where participants described their perceived sleep quality and the time they felt they spent asleep.

Long-Term Research and Durability of Effect

The majority of the available scientific literature on Flurazepam research exploring short-term symptom changes. These studies were designed to observe responses over defined time intervals, typically evaluating the effects of the medication over periods ranging from a few days up to four weeks. Evidence derived from settings with varying symptom burdens often shows patterns related to acute use. Long-term effects are not fully established; there is limited information for long-term outcomes, as follow-up durations were limited in the initial controlled trials designed to assess acute usage.

What is Still Uncertain in the Research Landscape

While research provides insight into short-term changes, evidence highlights what is known—and what is still uncertain. A key research limitation is that data for certain groups remain insufficient, and long-term effects are not fully established. In summarizing research limitations, studies observed that sample sizes were modest in some of the early clinical work, and results apply only to the populations studied. The certainty remains low for outcomes related to the maintenance of sleep patterns over extended periods.

Key Studies & References

Frequently Asked Questions (FAQ)

Common questions about Felison (FAQ)

Q: How long does it typically take for Felison to start working?

According to official pharmacokinetic studies, the initial compound starts to work relatively quickly. Peak concentrations of the active ingredient are generally observed in the bloodstream approximately 30 to 60 minutes after taking the medicine.

Q: Can I take Felison if I am drinking coffee?

As this is a hypnotic agent designed to promote rest, official patient information indicates that avoiding caffeine-containing products before going to bed is generally suggested. Stimulants like caffeine may antagonize (work against) the sedative effects of the medication.

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

Official instructions strongly warn against consuming alcohol due to the risk of severe side effects such as increased drowsiness and serious breathing problems. Outside of the specific warnings for alcohol, official product information indicates that continuing a normal diet is generally acceptable, unless otherwise instructed.

Q: How long does Felison stay in your system after the last dose?

Official product information classifies the medicine as having a prolonged duration of action. The major active component, a metabolite, has a long half-life that can range from approximately 47 to 100 hours, meaning it remains detectable in your system for several days after the last dose.

Q: Why is Felison sometimes called by a different name?

The medicine is officially known by its generic name, flurazepam hydrochloride. This generic form may be marketed and sold under various different brand names depending on the manufacturer or location.

Q: Are there any tests needed before starting Felison?

A healthcare provider is required to perform an assessment before prescribing and throughout treatment. This assessment generally involves evaluating the risk for abuse, misuse, and addiction, and assessing any underlying psychiatric or medical illness.

Q: Does Felison interact with common over-the-counter pain relievers?

Official drug interaction sections highlight that this medication can intensify the effects of other Central Nervous System (CNS) depressants. For this reason, official patient guides emphasize the importance of informing a healthcare provider of all prescription and nonprescription drugs taken.

Q: Are there any known interactions between Felison and herbal supplements?

The official Medication Guide emphasizes the need to inform a healthcare provider of all herbal supplements and vitamins used. This is because some supplements may interact with the medicine, potentially intensifying side effects like drowsiness or affecting the overall function of the drug.

Q: Can I take Felison if I'm already taking medication for high blood pressure?

Regulatory documents emphasize that patients should inform their healthcare provider about all existing medical conditions and all medications currently being taken. This is necessary for the provider to screen for potential drug interactions and determine appropriate use.

Q: Is Felison available in different strengths?

The official regulatory label indicates that the product is manufactured and available as capsules in both 15 mg and 30 mg strengths.

Q: How quickly does the effect of Felison wear off?

Because the medication's active metabolite stays in the body for a prolonged time, residual effects may include daytime drowsiness that can persist into the next day. This long duration is a key feature of the medicine's pharmacological classification.

Q: Can I use Felison if I have diabetes?

Official labeling instructs patients to disclose all medical conditions before beginning treatment, including if a patient has diabetes. Providing a complete medical history is necessary to determine the appropriate use of this medication.

Q: Does taking Felison with food change how it works?

The official administration instructions and patient information state that continuing a normal diet is generally acceptable while taking this medication. Patients should only take the medicine in a different way if specifically instructed by a healthcare provider.

Q: Is Felison an FDA-approved drug?

The active ingredient in this product is consistently listed in the official DailyMed database, which serves as the authoritative repository for FDA-approved drug labeling in the United States.

Q: What is the difference between the brand name and generic version of Felison?

The official product information explains that the generic name is the chemical name, flurazepam hydrochloride, while the brand name is the specific name given by the company that manufactures the medicine.

Q: Can Felison be split or crushed?

Official patient guidelines indicate that the capsules are generally intended to be taken whole. They should not be split, crushed, or opened unless a patient has received specific instructions from a healthcare provider.

Q: Is there a patient brochure or guide for Felison?

Yes, the FDA requires that the Medication Guide be provided by the pharmacist with each new prescription and refill to ensure key safety information is communicated.

Q: Does Felison interact with birth control pills?

Regulatory documents emphasize that patients should inform their healthcare provider about all medications, including hormonal contraceptives (birth control pills). This step is necessary to allow the provider to screen for potential drug-to-drug interactions.

Q: What should I do if I experience a mild side effect from Felison?

Official patient information states that if an individual experiences a side effect that bothers them or does not go away, they should contact their healthcare provider for medical advice.

How should Felison be stored and disposed of?

How to Store and Dispose of Felison?

The storage and disposal of Felison (Flurazepam Hydrochloride capsules) must adhere strictly to the conditions mandated by regulatory labeling to maintain stability and ensure safety.

Official Storage Requirements

Felison must be stored at Controlled Room Temperature, specifically 25 C (77 F). Brief temperature excursions are permitted between 15 C and 30 C (59 F and 86 F). The container must be kept tightly closed to protect the product from moisture. The medicine must also be stored out of the reach of children.

Official Disposal Rules

Disposal of unused or expired product must follow local regulations, such as community drug take-back programs. When take-back options are unavailable, regulatory agencies direct that the product must be flushed down the toilet to prevent accidental ingestion by people or pets.

Felison