Depil

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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 Depil

Quick Facts

Property Description
Active ingredient Fluoxetine (hydrochloride)
Form Capsule, tablet, or oral solution
Pharmacological class Selective Serotonin Reuptake Inhibitor (SSRI)
General purpose Supports mood regulation and emotional equilibrium
Origin Synthetic compound

What is Depil? Defining the Pharmaceutical Entity

Depil is a trade name for the prescription-only medication whose active ingredient is Fluoxetine, a synthetic compound derived chemically from the aryloxypropylamine class. Fluoxetine is a widely studied molecule that has become a benchmark in its therapeutic field. It functions as a single-ingredient product, containing only the active substance (typically the hydrochloride salt) alongside necessary pharmaceutical excipients. The drug is intended for the oral route of administration to achieve systemic effects on the central nervous system.

What Type of Medicine is Depil and How is it Supplied?

Depil is classified scientifically as a Selective Serotonin Reuptake Inhibitor (SSRI). This places it within the large therapeutic group of 2nd Generation Antidepressants. The SSRI class, including Fluoxetine, is clinically recognized for its targeted mechanism compared to older antidepressant types, making it a foundational treatment option supported by extensive research. The medication is manufactured in several dosage forms, including standard and delayed-release capsules, tablets, dispersible tablets, and a liquid oral solution, offering flexible options for intake across different patient groups.

What is the General Purpose of Depil?

The medication is fundamentally intended to serve as a serotonin modulator, with the general purpose of helping to regulate mood and achieve emotional equilibrium within the brain. Its functional principle involves enhancing serotonin signaling by blocking the reabsorption of the neurotransmitter serotonin. This focused action on a key chemical messenger supports the brain's ability to maintain a sense of well-being, commonly aiding patients experiencing significant mood disruption.

What side effects are possible with Depil?

Possible side effects and safety information

The safety profile for Depil (Fluoxetine) is formally defined in government regulatory documents using System-Organ Classes (SOCs) and frequency categories to classify reported adverse reactions. This structure allows for a systematic communication of the medicine’s risk characteristics, moving from common observations to rare, serious concerns.

Adverse reactions are classified by frequency, with several effects listed as Very Common (occurring in ge 1/10 patients). These frequently reported effects often include insomnia, headache, nausea, diarrhea, and fatigue (asthenia). Effects classified as Common (ge 1/100 to < 1/10) extend across multiple systems and include anxiety, nervousness, tremor, dry mouth, dizziness, and decreased libido.


Documented Safety Concerns

The official labeling specifies clinically significant risks that are monitored by regulators:

  • Serious Adverse Reactions: Rare but serious events documented include Serotonin Syndrome (a potentially severe reaction associated with excessive serotonergic activity), a documented risk of Hyponatremia (low blood sodium levels), and a heightened risk of Abnormal Bleeding.
  • Suicidality Risk: Antidepressants, including Fluoxetine, carry a documented risk regarding the emergence of suicidal thoughts and behaviors, particularly observed in children, adolescents, and young adults.
  • Cardiac Risk: Regulatory documents note the potential for effects on the heart's electrical activity, specifically QT-interval prolongation, which necessitates caution in specific patient populations.

Population and Exposure Safety Notes

Certain safety considerations are tied to specific groups or exposure periods. In pediatric and adolescent patients, there is the explicitly stated concern regarding an increased risk of suicidal thinking and behavior. For individuals with hepatic impairment, the drug's clearance is reduced, which may lead to higher systemic exposure. Certain side effects, such as anxiety and nervousness, are often officially stated as being more frequent at the start of treatment or following dose increases.

Overdose and Emergency Response

An overdose of Depil (Fluoxetine) is officially documented to present with several clinical manifestations. These often involve the Central Nervous System, resulting in agitation, confusion, somnolence, and sometimes hallucinations. Systemic symptoms may include fever, sweating, muscle twitching, nausea, vomiting, and a fast or irregular heartbeat.

A key concern in overdose is the potential for severe, life-threatening outcomes. Regulatory labeling highlights the risk of neurological complications like seizures and coma, as well as the development of Serotonin Syndrome. Furthermore, serious cardiovascular issues such as QT prolongation and ventricular arrhythmia are officially documented risks requiring specific monitoring.

Due to these potential life-threatening risks, official government guidance mandates that immediate emergency medical attention must be sought. Specifically, emergency services or poison control must be contacted if the affected individual has collapsed, is experiencing breathing difficulty, has a seizure, or cannot be awakened.

Management is strictly symptomatic and supportive, and the official prescribing information notes that no specific antidote is known. Close clinical observation and continuous hospital monitoring, including cardiac surveillance, are required to address the documented systemic and cardiac effects.

Therapeutic Uses of Depil

What Depil Treats: Main Uses and Benefits

Depil is applied across therapeutic domains involving mood and behavioral health conditions, and may assist in addressing symptoms that interfere with daily functioning. The medication is commonly used to help with conditions like Major Depressive Disorder (MDD), Obsessive-Compulsive Disorder (OCD), Panic Disorder, Bulimia Nervosa, and Premenstrual Dysphoric Disorder (PMDD). This supportive relief may help patients cope more steadily with difficult episodes, especially when symptoms become more noticeable.

It is relevant for easing symptom clusters that may become intense or disruptive, such as persistent low mood and anhedonia, intrusive obsessions and compulsions, or severe, cyclical irritability and tension. This use supports the patient during difficult episodes by easing distress and contributes to easing the overall symptom load during periods of heightened symptoms.


Quick Fact: Therapeutic Domains

Domain Symptom/Condition Framing
Affective Support Helps manage symptoms related to functional stress (e.g., MDD, Bipolar I Depressive Episodes).
Anxiety & Control Applied in conditions involving episodic or fluctuating manifestations (e.g., OCD, Panic Disorder).
Cyclical Support Is commonly used to help with easing severe emotional tension associated with PMDD.

Eligibility and Restrictions for Use

Who Can and Cannot Use Depil?

Eligibility for using Depil (Fluoxetine) is strictly defined by regulatory authorities based on absolute prohibitions and population-specific restrictions.


Absolute Non-Eligibility (Contraindications)

Depil must not be used by patients with a known hypersensitivity or allergic reaction to fluoxetine or any components of the product. It is also strictly contraindicated for use with Monoamine Oxidase Inhibitors (MAOIs), Pimozide, Thioridazine, Linezolid, or intravenous methylene blue.

Age-Specific Eligibility

The medicine is approved for adults (18+ years) for all labeled uses. Pediatric use is restricted: it is established for Major Depressive Disorder in patients 8 years and older and for Obsessive-Compulsive Disorder (OCD) in patients 7 years and older, but safety is not established below these ages for these indications.

Conditional Use and Restrictions

Population Group Regulatory Status / Restriction
Hepatic Impairment Requires lower or less frequent dosage due to delayed drug clearance.
Older Adults Lower or less frequent dosage should be considered; caution is required due to the risk of hyponatremia.
Pregnancy Use is conditional: only if the potential benefit justifies the potential risks to the fetus.
Lactation Breastfeeding is not recommended by some official labels.

Use is also approached with caution in patients with a history of seizures or risk factors for QTc prolongation.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of Depil is characterized by its effect on key metabolic and pharmacodynamic pathways, requiring careful consideration of co-administered agents. The official regulatory classification defines several critical combinations based on their potential to alter the concentration of Depil or increase the risk of specific adverse effects.

Pharmacokinetic Interactions

Depil is an inhibitor of the CYP2D6 enzyme, which can lead to increased plasma concentrations of other medicines metabolized by this enzyme. This includes certain antipsychotics, tricyclic antidepressants, and some anti-arrhythmic agents, necessitating caution and potential monitoring when used together. Conversely, co-administration with strong CYP3A4 inducers, such as certain antiepileptics, is restricted as it can substantially reduce the effective concentration of Depil. Co-administration with certain P-glycoprotein inhibitors may also increase the systemic exposure of Depil.

Pharmacodynamic Interactions

Concomitant use with agents that elevate serotonin levels—including other selective serotonin reuptake inhibitors (SSRIs), serotonin-norepinephrine reuptake inhibitors (SNRIs), and especially Monoamine Oxidase Inhibitors (MAOIs)—is restricted. The official labeling specifies a washout period when switching between Depil and an MAOI. Additionally, caution is mandated with medicines that affect platelet function, such as non-steroidal anti-inflammatory drugs (NSAIDs) or aspirin, due to an increased risk of bleeding.

Mechanism of Action

Selective Blockade of the Serotonin Transporter (SERT)

Depil's mechanism initiates with the highly specific inhibition of the Serotonin Transporter (SERT), a protein located on the presynaptic neuronal membrane. By functioning as a Selective Serotonin Reuptake Inhibitor (SSRI), the molecule prevents the reabsorption of the neurotransmitter Serotonin (5-HT) from the synaptic cleft back into the neuron. This molecular blockade immediately raises the concentration and extends the duration of 5-HT available for stimulation of postsynaptic receptors.


⏳ Time-Dependent Neuronal Adaptation

While SERT inhibition is rapid, the subsequent systemic consequence is delayed because it requires the central nervous system to adapt to the chronic presence of elevated extracellular serotonin. This adaptive process includes the functional desensitization of inhibitory presynaptic autoreceptors, which subsequently allows the neuron to increase its net rate of serotonin release and maintain a sustained, enhanced level of serotonergic signaling.


️ Functional Modulation of CNS Equilibrium

The cumulative effect of increased synaptic serotonin and long-term receptor adaptation results in the modulation of neural circuits within the CNS associated with affect regulation. This action modulates dysregulated signaling patterns and establishes an altered state of serotonergic signaling within the Central Nervous System, shaping the drug's overall physiological effect profile.

Dosage and Administration Information

How to Use Depil (Fluoxetine)

Depil is exclusively an oral medication, available in various forms including immediate-release capsules, tablets, and a liquid solution. It is typically administered once daily, generally in the morning, and may be taken with or without food. General instructions for the liquid formulation specify that the product must be shaken well before measurement and doses must be dispensed using a calibrated measuring device.

The standard adult starting dose is contingent upon the condition being addressed. For conditions such as Major Depressive Disorder (MDD) and Obsessive-Compulsive Disorder (OCD), the initial dose is typically 20 mg per day. However, for Bulimia Nervosa, the starting dose is 60 mg per day. Dose adjustments are usually reviewed and implemented after several weeks to achieve a maintenance dose, with the maximum daily dose generally limited to 80 mg for most adult conditions.

A specific 90 mg delayed-release capsule is approved for once-weekly dosing in the maintenance phase, and is initiated seven days after the patient’s last daily 20 mg dose. If a daily dose is missed, the standard practice is to take the next dose at the regularly scheduled time, rather than doubling the dose.

Population Dosing Instruction
Hepatic Impairment A lower or less frequent dose should be considered due to reduced drug clearance.
Older Adults Daily dose generally should not exceed 40 mg.
Pediatric (MDD/OCD) Starting doses are often 10 mg daily.

Recent Clinical Evidence

Research Evidence: Overview of Studies for Depil (Fluoxetine)


Evidence for Use in Major Depressive Disorder (MDD)

The research base for the medicine was studied for MDD is primarily built upon short-term Randomized Controlled Trials (RCTs). These studies were conducted during periods of increased symptom activity and used in research exploring how symptoms change over time. Researchers examined outcomes related to symptom intensity or variability, focusing on evaluating a pre-defined change in depressive symptoms and the patient's capacity to reach a state of remission. Findings describe patterns observed in the studies where participants receiving the medicine showed measurements on symptom scales that were observed alongside those receiving placebo. What remains uncertain is the long-term characterization of outcomes reflecting daily functioning or activity level beyond the first year. Furthermore, findings were mixed regarding the study results observed in some trials involving children and adolescents.

Evidence for Use in Obsessive-Compulsive Disorder (OCD) and Panic Disorder

For both OCD and Panic Disorder, the medicine was evaluated in controlled trials. For OCD, studies focused on conditions associated with acute or disruptive episodes of obsessions and compulsions. Trials exploring Panic Disorder primarily measured outcomes describing episodic or acute changes in the frequency of panic attacks. A limitation noted in the research is that evidence comparing the medicine to certain other studied agents for these conditions remains incomplete across every patient group. Additionally, the full impact on long-term functional outcomes is not fully established for all populations involved in the trials.


Long-Term Research and Evidence Gaps

The research available includes trials that follow up on participants beyond the initial treatment phase to observe the sustained measurement consistency. However, a consistent limitation across the evidence base is that follow-up durations were limited in many of the seminal controlled trials, and the available data for assessing sustained, multi-year stability remains insufficient for all approved indications. Limited specific data are available for certain subgroups, such as the patterns of change in very older adults with complex health needs, and research exploring temporary physiological imbalance is still emerging for many comorbid groups. Long-term effects are not fully established for every single approved use.

Key Studies & References

  1. Short- and Long-Term Antidepressant Clinical Trials for Major Depressive Disorder in Youth: Findings and Concerns (Frontiers in Psychiatry)

Frequently Asked Questions (FAQ)

Common questions about Depil (FAQ)


Q: Why does it take a while to feel the antidepressant effects?

Regulatory information indicates that while the medicine begins to block the reabsorption of serotonin right away, the full therapeutic effect is not immediate. It may take several weeks of consistent treatment before noticeable improvement is observed. This delay is thought to be related to the time required for the central nervous system to adapt to the change in serotonin levels.

Q: Can this drug affect my sleep, and how?

Official product information lists insomnia (difficulty sleeping) and feelings of anxiety as possible adverse effects. These effects are often stated as being more frequent when starting treatment or after a change in dosage.

Q: How should I store the liquid form of the medicine?

This medication must be kept at Controlled Room Temperature, generally between 20 C and 25 C (68 F and 77 F). To maintain its stability, it must be protected from freezing and excessive moisture. The product information states it should be kept in the original container, tightly closed, and out of the sight and reach of children.

Q: How is the dosage determined for my condition?

Official regulatory documents explain that the recommended dosage varies depending on the specific condition being treated, such as Major Depressive Episodes or Obsessive-Compulsive Disorder. The precise dose is determined by a healthcare provider and is adjusted based on an individual's clinical response to the treatment.

Q: How long can I expect to be on this drug?

The duration of treatment is typically subject to periodic review by a healthcare professional. Official studies have not always demonstrated long-term efficacy (beyond several months) in every trial, which is why ongoing assessment of the treatment plan is necessary.

Q: Is it safe to drive after taking Depil?

Official labeling cautions that the medication has the potential to impair thinking, judgment, and motor skills. Official labeling recommends caution when operating machinery or driving until one is certain how the medicine affects them.

Q: What should I do if I think I'm having a serious allergic reaction?

Official information advises that if a rash or other signs of an allergic reaction appear, the drug should be discontinued. Appropriate supportive treatment is initiated based on the provider's instructions.

Q: Does this medicine interact with alcohol?

Caution is advised regarding the use of alcohol while taking this medicine. Regulatory sources note that the drug can potentially cause impaired coordination, reduced judgment, or drowsiness, effects that may be made worse by consuming alcohol.

How should Depil be stored and disposed of?

Official Storage Conditions

Depil (Fluoxetine) must be stored at Controlled Room Temperature, officially defined as 20 C to 25 C (68 F to 77 F), with permitted temperature excursions up to 30 C. The medicine must be protected from freezing and excessive moisture to maintain its stability. For all forms, the product must be stored in its original container and kept tightly closed.

Child Safety and Disposal Requirements

All medication must be stored out of the sight and reach of children to prevent accidental ingestion, as mandated by regulatory authorities. For disposal of unused or expired product, the preferred method is to use an official drug take-back program. If a program is unavailable, the medicine must be mixed with an undesirable substance, sealed in a bag, and then discarded in the household trash; the product is not approved for flushing down the toilet.

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

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