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Trazodona Generis

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Trazodona Generis

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Method of action: Antidepressant, Psychoanaleptics

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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.

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Overview of Trazodona Generis

Trazodona Generis: Identity and Classification

Property Description
Active ingredient Trazodone hydrochloride
Form Oral tablet (standard and extended-release)
Pharmacological class Serotonin Antagonist and Reuptake Inhibitor (SARI)
Common purpose Mood regulation and sedative support
Origin Synthetic compound (Triazolopyridine derivative)

Trazodona Generis is a prescription medication whose active substance is the synthetic compound Trazodone hydrochloride. The drug belongs to the Serotonin Antagonist and Reuptake Inhibitor (SARI) pharmacological class, which is clinically recognized for modulating key brain chemistry.

This classification is a differentiating factor for Trazodone, as it utilizes a dual mechanism—combining weak reuptake inhibition with potent receptor blockade—unlike Selective Serotonin Reuptake Inhibitors (SSRIs). This difference in pharmacological profile supports its use when traditional mood regulators are unsuitable or when a patient requires simultaneous assistance with sleep initiation.

Composition and Pharmaceutical Form

The medication is composed of Trazodone hydrochloride as the single active ingredient within solid pharmaceutical excipients. The most common dosage form is an oral tablet for oral administration. Trazodona Generis, being a generic version, ensures the same pharmaceutical equivalence and active ingredient consistency as the original branded formulations, as mandated by regulatory standards.

Trazodone is also manufactured in specialized preparations, such as extended-release tablets, designed to adjust the release rate of the drug over an extended duration. This design distinction is commonly used in long-term maintenance and contributes to sustained therapeutic management throughout the day.

General Therapeutic Purpose

The overarching therapeutic purpose of Trazodone is derived from its ability to regulate neurochemistry and reduce central nervous system arousal. Its dual action assists in stabilizing emotional states and decreasing general nervous tension. The medication's potent blocking of certain histamine and adrenergic receptors imparts a distinct and medically confirmed hypnotic/sedative effect, making it highly valuable in managing sleep difficulties that frequently accompany various mood disturbances.

Regulatory References

  1. MedlinePlus
  2. NIH
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What side effects are possible with Trazodona Generis?

Possible Side Effects and Safety Information

This section outlines the officially documented adverse reactions and safety statements for Trazodona Generis, based on authoritative government regulatory documents.

Serious Adverse Reactions (Boxed Warning and Major Risks)

Government regulatory documents include a Boxed Warning concerning an increased risk of Suicidal Thoughts and Behaviors in children, adolescents, and young adults (up to age 24). Other serious risks include Serotonin Syndrome (especially when combined with other serotonergic agents), Cardiac Arrhythmias (including QT prolongation), Priapism (a prolonged, painful erection that requires immediate medical attention), Orthostatic Hypotension (a drop in blood pressure upon standing), and the Activation of Mania or Hypomania.

Common Adverse Reactions (Frequency ge 5%)

Based on clinical trial data, the most frequently reported adverse reactions include Drowsiness/Somnolence, Dry Mouth, Dizziness/Lightheadedness, Fatigue, Blurred Vision, Nausea/Vomiting, and Headache.

Safety-Related Restrictions and Considerations

Contraindications prohibit the use of this medicine concurrently with, or within 14 days of discontinuing, a Monoamine Oxidase Inhibitor (MAOI). Use requires caution in patients with pre-existing heart disease due to the risk of arrhythmias. Hyponatremia (low sodium levels) and a risk of Abnormal Bleeding have also been documented. Population-specific considerations note that elderly patients may have a higher risk for orthostatic hypotension and sedation, and dosage changes require monitoring for suicidal thoughts.

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Overdose and Emergency Response

Overdose Manifestations and Severe Outcomes

Element Official Regulatory Documentation
Documented Manifestations Initial presentation commonly involves extreme drowsiness (somnolence), dizziness, lack of coordination (ataxia), nausea, and vomiting.
Life-Threatening Risks Overdose can lead to seizures, coma, respiratory arrest, and severe cardiac arrhythmias including QT prolongation and Torsades de Pointes. Hypotension is also documented.
High-Risk Exposure Severe and potentially fatal outcomes are specifically associated with co-ingestion of Trazodona Generis with other CNS depressants, such as alcohol or barbiturates.
Antidote and Management No specific antidote is known. Management must be symptomatic and supportive, including cardiac monitoring and potential use of activated charcoal or gastric lavage.

When Urgent Medical Help is Required

Regulatory guidance mandates immediate action in all suspected overdose situations due to the documented risk of life-threatening cardiovascular and respiratory events. Individuals must seek immediate medical attention and contact a poison control center right away. Urgent medical evaluation is specifically required for severe complications, including a painful erection lasting longer than six hours (priapism), seizures, loss of consciousness, or difficulty breathing. This regulatory guidance reflects the need for prompt hospital monitoring for potential cardiovascular and neurological deterioration.

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Therapeutic Uses of Trazodona Generis

What Trazodona Generis Treats: Main Uses and Benefits

The therapeutic application of Trazodona Generis is commonly used to help with symptomatic relief in situations involving certain distressing symptoms related to mood, anxiety, and sleep, primarily targeting patterns where heightened emotional distress and sleep disturbance co-occur. The medication is commonly used to treat depression and is relevant for easing associated symptoms.

Focus Areas and Patient Benefits

The medication is applied across domains where additional symptomatic support is needed for symptom clusters related to persistent low mood and emotional instability, sleep deficits, and nervous tension. It provides supportive relief that generally helps ease the overall symptom burden of depressive episodes, and offers symptomatic relief that helps patients cope more steadily with symptom fluctuations during difficult episodes.

Trazodona Generis is relevant in clinical settings marked by the symptomatic discomfort of insomnia, applied when sleep difficulties frequently co-occur with symptoms of mood instability. This medication provides supportive relief when symptoms interfere with routine activities, generally helping to moderate distressing manifestations of hyperarousal.


Quick Fact: Supportive Relief for Insomnia The medication is commonly used when short-term symptomatic assistance is needed to address chronic difficulties with sleep initiation and sleep maintenance, supporting general well-being during symptomatic phases.


Regulatory References

  1. NIH MedlinePlus Drug Information
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Eligibility and Restrictions for Use

Eligibility and Contraindications for Trazodona Generis

Official regulatory documents define strict criteria for who can and cannot use Trazodona Generis (Trazodone). Use is primarily established for adults (18 years and older) with Major Depressive Disorder.

Classification Population/Condition
Absolute Contraindications Hypersensitivity to trazodone; concurrent use with Monoamine Oxidase Inhibitors (MAOIs) or within 14 days of stopping them; patients in the initial recovery phase after a myocardial infarction; acute alcohol or hypnotic intoxication.
Not Recommended Children and adolescents under 18 years (safety and efficacy are not established).

Use requires caution in patients with pre-existing conditions. These include severe hepatic (liver) or renal (kidney) impairment, due to the drug’s metabolism and excretion. Patients with certain cardiac diseases, such as arrhythmias or conduction disorders, must be closely monitored. Use during pregnancy and lactation is generally permitted only if a physician determines the benefit outweighs the potential risk. Older adults may require a reduced starting dose.

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What should I know about interactions with other medicines?

Trazodona Generis has documented interactions with several categories of medicinal products, primarily involving effects on serotonin levels, metabolism, and cardiac function.

Monoamine Oxidase Inhibitors (MAOIs), including linezolid and intravenous methylene blue, are contraindicated for use with Trazodona Generis. A washout period of at least 14 days is required when switching between Trazodona Generis and an MAOI due to the risk of Serotonin Syndrome.


Interacting Product Category Interaction Mechanism and Effect
Serotonergic Agents (e.g., SSRIs, SNRIs, triptans, tramadol, St. John's Wort) Pharmacodynamic: Increased risk of Serotonin Syndrome. Monitoring is required.
CYP3A4 Inhibitors (e.g., ketoconazole, ritonavir, clarithromycin) Pharmacokinetic: Inhibition of Trazodone's metabolism, leading to increased Trazodone plasma concentration. Dose reduction may be necessary.
CYP3A4 Inducers (e.g., carbamazepine, phenytoin, rifampin) Pharmacokinetic: Increased Trazodone metabolism, leading to decreased Trazodone plasma concentration. Dose increase may be necessary.
Anticoagulants/Antiplatelets (e.g., warfarin, aspirin, NSAIDs) Pharmacodynamic: Increased risk of bleeding due to interference with serotonin reuptake, which affects platelet aggregation.
CNS Depressants (e.g., alcohol, barbiturates, other sedatives) Pharmacodynamic: Enhanced central nervous system depressant effects.
Drugs that Prolong QT Interval Pharmacodynamic: Additive risk of cardiac arrhythmias and QTc prolongation.

Due to these interactions, patients must be carefully monitored, particularly at the initiation or change of a dose, and dose adjustments may be warranted based on the co-administered therapy.

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Mechanism of Action

Trazodona Generis acts on specific central nervous system targets to modulate neurotransmitter signaling. The drug functions primarily by antagonizing 5-HT2A serotonin receptors and by weakly inhibiting the Serotonin Transporter (SERT), which reduces serotonin reuptake. This dual activity modifies the signaling cascade, altering synaptic serotonin concentration and receptor response. This pathway modulation alters activity within monoaminergic systems, affecting neurotransmission patterns associated with emotional and behavioral control.

The drug also displays antagonism at Histamine H1 and alpha1-adrenergic receptors. H1 receptor blockade suppresses histamine signaling, which leads to central sedation and modulation of the sleep-wake cycle. The alpha1-adrenergic antagonism relaxes smooth muscles in blood vessels, producing a physiological effect of peripheral vasodilation and altering pathways involved in blood pressure control. This multi-receptor action results in the modulation of both arousal and peripheral vascular function.

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Dosage and Administration Information

How to use Trazodona Generis

The usage of Trazodone involves specific protocols for administration route, dosing, and timing. Trazodona is administered via the oral route as tablets or as an oral solution.

Official Dosing Regimens

The standard initial regimen for immediate-release (IR) tablets is 150 mg per day, usually taken in divided doses. The dosage may be gradually increased by 50 mg per day every three to four days, based on the specific formulation. The maximum daily dose for IR tablets is typically limited to 400 mg for outpatients or 600 mg for more severely affected individuals. The extended-release (ER) formulation typically begins at 150 mg once daily.

Administration Requirements

Instruction Type Immediate-Release (IR) Tablet Extended-Release (ER) Tablet
Timing Relative to Meals Should be taken shortly after a meal or light snack. Should be taken on an empty stomach.
Physical Handling May be broken along the score line but must not be chewed or crushed. Must not be chewed or crushed to preserve the controlled release mechanism.

Use Protocol

For both formulations, the tablets should be swallowed whole. Due to specific usage considerations, the total daily dose of the immediate-release form is often divided, with a major portion administered at bedtime. Dosage adjustments are required when Trazodone is co-administered with strong inhibitors or inducers of the CYP3A4 enzyme. For older adults, guidance specifies the need for a lower starting dose. Upon cessation of use, a gradual dose reduction (tapering) is the prescribed method, rather than an abrupt discontinuation.

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Recent Clinical Evidence

Research Evidence / Overview of Studies for Trazodona Generis

This section provides an overview of the research that has been conducted on Trazodone, detailing the types of studies, the outcomes researchers measured, and where evidence remains limited or uncertain. This information is based on findings reported by regulatory bodies and scientific literature.


Evidence for Use in Major Depressive Disorder (MDD)

Research focused on Trazodone for Major Depressive Disorder (MDD). The initial evidence was derived from randomized controlled trials (RCTs), which compare the medication against a placebo or other active treatments over short time intervals. Research examined how the severity of symptoms changed in participants, using standardized measurements. Studies monitored outcomes such as changes in symptom scores and the percentage of people who achieved improvement or remission.

In these trials, findings describe patterns observed in the studies where researchers measured changes in participants' overall depression severity measurements compared to the start of the study. Evidence quality varies across studies regarding the consistency of long-term outcomes, especially after the initial short-term treatment phase is completed.


Research on Sleep Difficulties (Insomnia)

Trazodone was evaluated in research exploring sleep difficulties, specifically primary insomnia and sleep problems secondary to depression. Researchers utilized RCTs and systematic reviews to assess changes in sleep. Outcomes measured in trials assessing short-term symptom patterns included both objective metrics (like total sleep time) and subjective measures (like patient-reported sleep quality).

Research describes patterns where changes in these metrics were measured during the short study period. However, the evidence is limited for addressing isolated insomnia beyond a few weeks. The follow-up durations were limited in many studies, meaning that long-term effects are not fully established regarding sustained sleep health in non-depressed individuals.


Research in Special Populations

Research examined outcomes in certain special groups, most notably older adults (geriatric patients), where co-occurring symptoms like sleep disturbance and agitation are common. Studies in this population often rely on subgroup analyses from larger trials or observational studies. Findings focus on balancing changes in mood symptoms against the occurrence of physical events.

For certain groups, such as children or highly specific comorbidity groups, data for certain groups remain insufficient. The results apply only to the populations studied, and the overall certainty remains low compared to the evidence base for MDD in general adult populations.

Key Studies & References

  1. Clinical Guideline for the Treatment of Depression
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Frequently Asked Questions (FAQ)

Common questions about Trazodona Generis (FAQ)

Q: How long does it typically take for Trazodona Generis to start working for sleep?

A: Official documents describe that Trazodona works by blocking certain receptors in the brain, including those for histamine, which results in a sedative effect. Due to the rapid onset of these effects, regulatory information indicates that the medication is commonly administered shortly before bedtime.

Q: Is Trazodona Generis considered addictive or habit-forming?

A: Trazodona is not currently classified as a controlled substance by the U.S. Drug Enforcement Administration. However, to help prevent potential adverse reactions upon stopping, official information advises that when discontinuing use, a gradual dose reduction (tapering) is the prescribed method.

Q: Is it necessary to take Trazodona Generis with food?

A: Administration requirements are distinct depending on the specific drug formulation. According to official product labeling, immediate-release tablets should be taken shortly after a meal or light snack. Conversely, the extended-release tablets are typically taken on an empty stomach.

Q: What should I know about taking Trazodona Generis with grapefruit or grapefruit juice?

A: Grapefruit and its juice are known to inhibit the CYP3A4 enzyme, which processes Trazodone in the body. Because of this, taking them together may potentially lead to increased Trazodone concentration in the blood, which may increase the risk of adverse reactions.

Q: What is the official information regarding the use of Trazodona Generis during pregnancy?

A: Regulatory information advises that use during pregnancy is permitted only if the potential benefit to the mother is determined to justify any potential risk to the developing fetus. If the drug is used until delivery, official documents advise that monitoring newborns for the occurrence of withdrawal symptoms may be warranted.

Q: What is the official guidance on taking Trazodona Generis if I am breastfeeding?

A: Official information confirms that Trazodona is excreted into human milk. Regulatory guidance states that a consideration is necessary to determine whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother’s health.

Q: What is the difference between Trazodona Generis and other commonly prescribed sleep aids?

A: Trazodona belongs to the pharmacological class known as a Serotonin Antagonist and Reuptake Inhibitor (SARI). Regulatory documents explain that it works primarily by blocking serotonin and histamine receptors, which is a different mechanism of action than that of other common sleep medications like benzodiazepines or z-drugs.

Q: What should I do if I forget to take a dose of Trazodona Generis?

A: Regulatory sources advise that if a dose is missed, it may be taken as soon as it is remembered. However, if it is nearly time for the next dose, the official protocol is to skip the missed dose and not to take a double dose.

Q: Can Trazodona Generis be safely used long-term?

A: Regulatory data for the drug's approved use in Major Depressive Disorder includes evidence that research themes indicate maintenance treatment may be associated with delaying the recurrence of symptoms. However, official information on the safety and effectiveness for long-term use, particularly for conditions other than MDD, is generally limited.

Q: What are the signs of a serious or unexpected reaction to Trazodona Generis?

A: Official documents outline serious risks that may require immediate medical attention. These signs can include: changes in mental status (such as agitation or hallucinations), problems with coordination, a fast heartbeat, fever, severe dizziness or fainting upon standing (orthostatic hypotension), or a prolonged, painful erection lasting more than four hours (priapism).

Q: Does Trazodona Generis affect dreams or cause vivid dreaming?

A: Vivid dreams or nightmares are documented in official adverse reaction data from post-marketing reports and clinical trials. This is noted as a possible side effect, though it is not listed among the most common adverse reactions (ge 5%) reported in initial studies.

Q: How is the half-life of Trazodona Generis described in official information?

A: The official clinical pharmacology section describes a two-phase elimination pattern for the drug. The first phase, or initial half-life, is described as being approximately 3 to 6 hours, while the second, terminal phase half-life is described as approximately 5 to 9 hours.

Q: What is the risk of daytime drowsiness or feeling 'hungover' the next day?

A: Drowsiness (somnolence) is listed as a common adverse reaction (ge 5%). Regulatory documents include a warning that the drug can potentially impair mental or physical abilities required for operating machinery, which is a documented warning for the potential for residual effects.

Q: Can Trazodona Generis be taken at the same time as cold or allergy medicine?

A: Many common cold and allergy medicines contain ingredients classified as CNS depressants (central nervous system depressants), such as certain antihistamines. Regulatory documents warn that combining Trazodona with other CNS depressants can lead to enhanced sedative and central nervous system depressant effects.

Q: Can I drive or operate machinery while taking Trazodona Generis?

A: Official safety warnings state that Trazodona has the potential to impair judgment, thinking, and motor skills. Regulatory documents include a caution that activities requiring full mental alertness, such as operating machinery or driving a car, may be impaired.

Q: What is the risk of withdrawal symptoms when stopping Trazodona Generis, and what are they?

A: Regulatory documents state that adverse reactions may occur when the drug is discontinued, even when the dose is gradually reduced (tapered). Reported symptoms that have been noted upon stopping the drug include anxiety, agitation, and sleep problems.

Q: Can Trazodona Generis affect blood pressure readings?

A: Yes, regulatory documents note that Trazodona has a pharmacological property that can lead to peripheral vasodilation (widening of blood vessels). Because of this action, hypotension (low blood pressure), especially orthostatic hypotension (a drop in blood pressure when standing), is a reported adverse reaction.

Q: What age group is Trazodona Generis typically studied and approved for?

A: Trazodona is officially approved for the treatment of Major Depressive Disorder in adults (18 years and older). Regulatory documents explicitly state that the medication is not approved for use in pediatric patients (those under 18 years) because safety and efficacy in this population have not been established.

Q: Can Trazodona Generis affect the results of any laboratory blood tests?

A: Trazodona has been associated with specific safety concerns, including hyponatremia (abnormally low sodium levels), which would be detected through routine laboratory blood tests. Additionally, the drug carries a warning for an increased risk of bleeding, which may impact monitoring tests for patients taking blood thinners.

Q: Does Trazodona Generis have any effect on appetite?

A: Changes in appetite are documented in official post-marketing and clinical trial data as a possible adverse reaction. However, these changes are not generally noted among the most common adverse reactions (frequency ge 5%) reported in initial regulatory studies.

Q: What does the term 'therapeutic window' mean for Trazodona Generis?

A: The term therapeutic window generally describes the range of drug doses that can effectively treat a condition without causing unacceptable side effects. For Trazodona, regulatory documents state that a direct relationship between the concentration of the drug in the blood and the clinical response or risk of toxicity has not been definitively established.

Q: Are there differences in effect if I take the drug in the morning vs. evening?

A: Regulatory guidance notes that because Trazodona can cause drowsiness, it is common practice for a major portion of the daily dose to be administered at bedtime. This scheduling is intended to mitigate the sedative effect during the day.

Q: Can Trazodona Generis cause tremors or restless legs?

A: Official adverse reaction data and post-marketing experience include symptoms such as tremor (shaking) and other nervous system-related events. These are noted as possible adverse reactions, although they are generally not listed among the most common effects reported in initial clinical trials.

Q: Can older adults safely use Trazodona Generis?

A: Official guidance for older adults (geriatric patients) advises caution and notes that a lower starting dose may be warranted. This population may have a higher risk for adverse reactions such as orthostatic hypotension (blood pressure drop upon standing) and sedation, requiring close monitoring.

Q: Does Trazodona Generis cause orthostatic hypotension?

A: Yes, Orthostatic Hypotension (a drop in blood pressure upon standing) is a serious adverse reaction/major risk listed in the official safety information. This effect is a documented result of the drug's properties, specifically its ability to block alpha1-adrenergic receptors.

Q: What are the general population limitations for using Trazodona Generis?

A: General limitations prohibit use in those with a known hypersensitivity to the drug, those who have recently used a Monoamine Oxidase Inhibitor (MAOI), individuals in the immediate recovery phase after a myocardial infarction, and children under 18 years of age (since safety and efficacy are not established).

Q: How is the dosage of Trazodona Generis typically described in official documents?

A: Official documents describe the dosage as a regimen that begins at a specific initial daily amount and is then increased gradually based on need. The total daily dose is often divided, with a major portion administered at bedtime to manage potential drowsiness.

Q: How should a patient know if Trazodona Generis is working for their condition?

A: In clinical trials, effectiveness for Major Depressive Disorder was measured by tracking changes in standardized symptom scores. Dosage adjustments are made based on the clinical response, which suggests that the primary indicator is the subjective improvement in symptoms as reported by the patient.

Q: What should I do if a child or pet accidentally ingests Trazodona Generis?

A: Due to the risk of severe overdose, official guidance indicates that immediate medical or veterinary emergency help is necessary in the event of accidental ingestion by a child or pet.

Q: What is the difference between a common side effect and a serious adverse reaction?

A: Official safety information clearly separates these: Common side effects are adverse reactions that a specified percentage of patients reported in clinical trials (e.g., drowsiness). Serious adverse reactions carry major risks, often noted in a Boxed Warning, and may require immediate medical attention (e.g., Serotonin Syndrome).

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How should Trazodona Generis be stored and disposed of?

How to Store and Dispose of Trazodone Hydrochloride

Trazodone hydrochloride tablets must be stored at Controlled Room Temperature, defined as 20 C to 25 C (68 F to 77 F), with brief excursions permitted up to 30 C (86 F). The product must be kept in a tight container and should not be frozen or refrigerated.

Official Storage and Disposal Requirements

Storage Requirement Rule Based on Regulatory Labeling
Temperature Controlled Room Temperature, avoiding freezing.
Protection Store in a tight container to protect from moisture.
Safety Keep out of the sight and reach of children.
Disposal Dispose of unused or expired product according to official guidance, which typically advises mixing with undesirable material and discarding in household trash, avoiding flushing or disposal into wastewater.

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

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