Depyretin

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Depyretin

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 Depyretin

Property Description
Active ingredient Acetaminophen (Paracetamol)
Pharmacological class Analgesic, Antipyretic
Common use Symptomatic relief of pain and fever
Origin Synthetic compound
Dosage forms Tablet, Suspension, Suppository, IV Solution

What Type of Medicine is Depyretin?

Depyretin is a synthetic, single-active-ingredient medicinal preparation officially classified as both an Analgesic (pain reliever) and an Antipyretic (fever reducer). Its active compound is Acetaminophen, globally recognized by the INN Paracetamol, which is categorized as a Non-Opioid Analgesic. This classification defines the drug's fundamental role in pain and temperature management, distinguishing its mechanism from narcotic pain relievers.


Composition, Forms, and Origin

The chemical identity confirms Acetaminophen is a synthesized Anilide derivative, meaning its origin is entirely synthetic, which ensures consistent standardization and purity. The medication is manufactured in various pharmaceutical preparations to ensure suitability across all patient groups, including infants and adults. These include common solid dosage forms like tablets and capsules, liquid oral suspensions, and specialized sterile solutions for intravenous infusion, which is necessary when rapid onset of action is required.


General Purpose and Benefit

The general therapeutic purpose of Depyretin is the effective symptomatic treatment of fever reduction and the relief of mild-to-moderate pain, such as discomfort associated with the common cold. This dual action is achieved through the compound's principal action on the Central Nervous System (CNS). The primary effects are centrally mediated to relieve pain and reduce fever. This active ingredient is a fundamental option for managing these common symptoms in general healthcare.

Regulatory References

  1. WHO Model Lists of Essential Medicines
  2. Paracetamol in WHO Essential Medicines List

What side effects are possible with Depyretin?

Possible side effects and safety information

The safety profile of Depyretin, containing Acetaminophen (Paracetamol), is defined by potential adverse reactions categorized by frequency and the body system affected, as established in regulatory documents from health authorities like the FDA and EMA. The most critical safety consideration documented is the risk of Hepatotoxicity (liver damage), which is primarily associated with cumulative exposure and exceeding the recommended maximum daily dose.


Official Adverse Reaction Classification

Adverse reactions are classified according to incidence observed in clinical use and post-marketing data. While reactions such as Nausea and Vomiting are sometimes listed as Common (particularly with certain formulations), more serious events are categorized as rare.

Frequency Classification Examples (System-Organ Class)
Rare Blood dyscrasias (e.g., thrombocytopenia), Hypersensitivity reactions, Hepatotoxicity
Very Rare Severe Cutaneous Adverse Reactions (SCARs), including Stevens-Johnson syndrome (SJS) and Toxic Epidermal Necrolysis (TEN), Anaphylaxis

Serious Adverse Reactions and Safety Constraints

Regulatory documentation highlights the potential for Acute Liver Failure as a serious adverse reaction, particularly when high doses are consumed over time. The label also documents risks to the Blood and Lymphatic System and the rare occurrence of SCARs and systemic Anaphylactic shock.

Specific safety constraints are stated for vulnerable populations: the medicine is officially contraindicated in individuals with known severe active hepatic disease. Furthermore, caution is noted in regulatory texts regarding use in individuals with chronic alcohol use due to documented increased susceptibility to liver injury. The safety profile requires careful consideration of all concomitant medications to avoid exceeding the total maximum daily amount of Acetaminophen.

Overdose and Emergency Response

In the event of a suspected Depyretin overdose, immediate medical advice should be sought and emergency services contacted, even if the individual feels well. Regulatory warnings emphasize that delayed but potentially fatal hepatic damage (hepatotoxicity) may occur after initial, non-specific symptoms have resolved.

Documented early clinical manifestations of overdose often include non-specific signs such as nausea, vomiting, pallor, anorexia, and diaphoresis (sweating). These can progress to severe, life-threatening outcomes, including hepatic failure, encephalopathy, and death. Regulatory documents also cite acute renal tubular necrosis and metabolic acidosis as potential complications.

The management protocol requires rapid, hospital-based assessment and monitoring. The specific antidote, N-acetylcysteine (NAC), is documented to prevent severe liver damage when administered within the required time window. Official regulatory requirements for overdose management include continuous monitoring of serum acetaminophen concentration and liver function tests (ALT/AST) for an appropriate duration.

Patients with risk factors such as pre-existing hepatic impairment, malnutrition, or chronic alcohol use are noted to have an increased hazard of severe overdose outcomes. The regulatory profile clearly mandates urgent medical intervention upon suspicion of overdose as the progression of poisoning is often not immediately apparent.

Therapeutic Uses of Depyretin

What Depyretin Treats: Main Uses and Benefits

The medication is primarily used to provide symptomatic relief across domains involving heightened patient distress. This core therapeutic approach assists in managing symptoms related to systemic imbalance and physical discomfort, which generally may contribute to improved comfort during periods of acute symptoms.

Commonly, the medication is used to help with discomfort and fever associated with conditions like the common cold, influenza, various forms of headache, toothache, generalized muscular aches, and menstrual pain.

Symptomatic Relief and Support

Depyretin is relevant in contexts marked by increased discomfort due to fever (pyrexia) and plays a role in managing symptoms of elevated body temperature that can intensify temporarily. This action supports the patient during difficult episodes by helping with general malaise. Additionally, it is applied in acute scenarios, such as managing the temporary fever and aches that can follow routine immunization, and is used in clinical settings that involve acute or unstable symptom patterns, such as temporary pain after a medical procedure, where short-term symptomatic assistance is needed to provide supportive relief when symptoms interfere with routine activities.


Quick Fact: Used for managing Mild-to-Moderate Pain


Regulatory References

  1. NIH MedlinePlus overview on Acetaminophen

Eligibility and Restrictions for Use

The official eligibility profile for Depyretin (Acetaminophen/Paracetamol) is defined by regulatory documents, establishing clear limitations and prohibitions based on patient status and co-existing conditions.

Formal Contraindications (Absolute Non-Eligibility)

Use is formally prohibited for any patient with a documented hypersensitivity or allergy to the active substance or any other component in the specific Depyretin formulation. The medication is also contraindicated in patients with severe hepatic impairment or severe active liver disease, as documented by the FDA and EMA.

Conditional Use and Restrictions

For non-prohibited populations, eligibility may be conditional:

  • Organ Function: Caution is required in patients with mild-to-moderate hepatic impairment or chronic alcoholism. In cases of severe renal impairment (Creatinine Clearance leq 30 mL/min), regulatory labels require a restriction on standard use, often by prolonging the dosing interval.
  • Age-Related Eligibility: While generally permitted for adults, pediatric use is strictly governed by the specific product's minimum age and weight threshold. Certain formulations may be not recommended for young infants or children under a specified age.
  • Pregnancy and Lactation: Official documentation states that the medicine is generally acceptable for use during pregnancy if clinically necessary, and is considered compatible with breastfeeding when used at therapeutic doses.

What should I know about interactions with other medicines?

Depyretin interactions are formally documented across several regulatory domains, primarily focusing on managing the risk of additive toxicity and altered systemic exposure. A core restriction is the absolute prohibition on co-administering Depyretin with any other prescription or nonprescription product containing acetaminophen, due to the officially recognized risk of severe liver failure.

Interactions affecting metabolism include the documented severe risk of liver damage when Depyretin is used concurrently with the regular consumption of three or more alcoholic drinks daily. The regulatory profile also lists agents known as hepatic enzyme inducers, such as Carbamazepine, Phenytoin, and the herbal product St. John's Wort, as increasing the risk factor for toxicity.

In terms of pharmacodynamic effects, prolonged, regular daily use of Depyretin may officially enhance the anticoagulant effect of coumarin derivatives like Warfarin, resulting in an increased risk of bleeding. Furthermore, the combination with Flucloxacillin is formally associated with the risk of high anion gap metabolic acidosis in susceptible individuals.

Medicinal products that modify exposure include Metoclopramide or Domperidone, which accelerate the speed of absorption, and Cholestyramine, which reduces absorption. Due to this reduction, administration of Cholestyramine must be separated in time from Depyretin. Population-specific notes specify that the drug is contraindicated in patients with severe hepatic impairment, as this condition amplifies interaction risks.

Mechanism of Action

How Depyretin Works

Central Regulation via Prostaglandin Inhibition

Depyretin's primary mechanism involves the inhibition of Cyclooxygenase (COX) enzymes specifically within the Central Nervous System (CNS). This central action significantly reduces the synthesis of the mediator Prostaglandin E2 (PGE2) in the hypothalamus, the center for thermoregulation. By suppressing PGE2 activity, the mechanism effects a resetting of the elevated thermoregulatory set point, initiating efferent signals associated with peripheral vasodilation and increased heat dissipation.


Secondary Analgesic Pathway Modulation

The drug's analgesic effect involves secondary pathways that do not rely on prostaglandin inhibition. The active metabolite, AM404, engages both the endocannabinoid system and acts as an agonist on central TRPV1 receptors located in the spinal cord. This activity modulates the transmission of nociceptive signals and facilitates the descending serotonergic pathway, which alters the processing of afferent pain stimuli in the CNS.


Mechanistic Limitations

A key feature of the drug's mechanism is its weak peripheral activity. The molecule's action is significantly constrained in peripheral tissues due to high levels of peroxides. This mechanistic constraint prevents significant inhibition of peripheral COX activity and the associated downstream effects in peripheral tissues.

Dosage and Administration Information

How Depyretin is Used

Depyretin is administered according to specific, officially approved dosing regimens that vary based on the chosen delivery method.

Approved Routes of Administration

The medication is officially approved for administration via three main routes:

  • Oral: The most common route, available in forms like tablets, capsules, and liquid suspensions.
  • Rectal: Administered via suppository, typically used when the oral route is not feasible.
  • Intravenous (IV) Infusion: Reserved for the clinical setting when rapid action is required or other routes are not suitable.

Standard Dosing and Frequency

The fundamental principle of using Depyretin is strict adherence to the prescribed maximum total daily dose, which must account for the drug received from all routes (oral, rectal, and IV) combined.

Administration Route Usual Single Adult Dose (≥ 50 kg) Standard Dosing Frequency Maximum Total Daily Dose
Oral (Immediate-Release) 325 mg to 1,000 mg Every 4 to 6 hours as needed 4,000 mg (4g) in 24 hours
Intravenous (IV) 1,000 mg OR 650 mg Every 6 hours OR Every 4 hours 4,000 mg (4g) in 24 hours

The minimum dosing interval for all adult regimens is generally 4 hours. Furthermore, oral suspensions must be measured with a calibrated device, and extended-release tablets must be swallowed whole. The IV solution must be administered slowly, typically over a 15-minute period, and specific dose adjustments may be mandated for patients with severe renal or hepatic impairment.

Recent Clinical Evidence

Recent Clinical Evidence

Overview of Clinical Research

Clinical research has explored the role of Depyretin (a synthetic opioid) in the management of acute post-surgical pain. The research program focused on outcomes related to pain management following operative procedures, with a primary objective to evaluate its efficacy and safety profile.

The development program for Depyretin included a series of controlled investigations, spanning Phase I, Phase II, and Phase III studies.


Key Study Findings

Pain Outcome Assessment

The most prominent investigation, a Phase III randomized control trial (RCT), reported a statistically significant difference in pain scores between the study group (receiving Depyretin) and the control group (receiving a placebo). The RCT also assessed whether there was a measured change in the use of rescue medication over a 72-hour observation period between the groups.


Safety and Tolerability Profile

The primary safety analysis of the main RCT identified nausea, dizziness, and mild sedation among the frequently reported adverse events. Further studies evaluating the safety profile reported data from short-term use in adults. Data from these studies explicitly excluded individuals with a documented history of significant liver dysfunction. Specific safety analyses examined severe adverse events, including respiratory depression.


Research Expansion

Some current research has examined whether Depyretin may have a potential role in chronic, non-cancer pain, with the studies evaluating a structured dosing regimen. The scope of these exploratory studies remains constrained. Additionally, research has investigated the co-administration of Depyretin and an anti-inflammatory agent to explore whether this approach influences patient mobility compared to either agent alone. Results from these combination studies are considered limited.

Key Studies & References

  1. Opioids for chronic noncancer pain: a meta-analysis of effectiveness and side effects (Representative systematic review for chronic pain context)
  2. Managing Acute Pain - Framing Opioid Prescribing Guidelines for Acute Pain - NCBI - NIH (Representative clinical guidance for post-operative pain and multimodal therapy)
  3. Paracetamol: A Review of Guideline Recommendations (Representative evidence on co-administration/NSAID combination efficacy)

Frequently Asked Questions (FAQ)

Common questions about Depyretin (FAQ)


Q: Is Depyretin used to treat pain or fever?

Yes, the active ingredient is officially categorized as both an analgesic (pain reliever) and an antipyretic (fever reducer), and is indicated for the symptomatic relief of both conditions.

Q: Does Depyretin have a generic version available?

Yes, the active ingredient in Depyretin (Acetaminophen/Paracetamol) is widely available as a generic drug under many different non-brand names, as its patent has expired.

Q: What are the main differences between Depyretin and other common over-the-counter pain relievers?

The active ingredient is classified as a non-opioid analgesic/antipyretic that works primarily in the central nervous system. A key difference from Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) is that it does not possess significant peripheral anti-inflammatory properties.

Q: Is Depyretin generally well-tolerated?

When the active ingredient is used in accordance with the official dosing guidelines, it is broadly described in major medical resources as generally well-tolerated.

Q: Is Depyretin ever used in combination with other prescription drugs for the same condition?

Yes, the active ingredient is frequently used in combination with other prescription pain relievers, such as certain opioid medications, to manage moderate to severe pain.

Q: What studies exist regarding Depyretin's safety profile?

Official regulatory submissions include a comprehensive clinical development program. These programs include multiple phases of clinical investigation designed to formally establish the safety, efficacy, and pharmacological characteristics of the product.


Q: How quickly can I expect Depyretin to start working?

Oral forms of the active ingredient typically achieve their peak concentration in the bloodstream and begin to work within 30 to 60 minutes following oral administration. Specialized IV solutions used in a clinical setting are associated with a much faster onset of effect.

Q: What is the average length of time a dose of Depyretin lasts?

The duration of the therapeutic effect, whether for pain relief (analgesic) or fever reduction (antipyretic), generally lasts between 4 and 6 hours, according to official product information.

Q: What is the expected timeline for receiving the drug’s full intended effect?

The maximum intended therapeutic effect is generally achieved at the time of peak plasma concentration, which occurs within 30 to 60 minutes following oral administration.

Q: Is it true that Depyretin must be taken regularly to work?

The drug is officially approved for the symptomatic relief of pain and fever, which often means it is used on an 'as-needed' basis. Research has also explored the use of a structured, regular dosing regimen in the context of certain chronic pain management.


Q: Are there any common foods or drinks that should be avoided while using Depyretin?

Official guidance generally indicates that the drug can be taken without regard to meals. However, official guidance documents note an increased risk of severe liver damage when the drug is used concurrently with regular, heavy alcohol consumption.

Q: Is there a chance of experiencing drowsiness while taking Depyretin?

The official safety profile for the active ingredient lists mild sedation and dizziness as possible adverse events associated with its use.

Q: Is it normal to feel a mild stomach upset after taking Depyretin?

The official safety data for the active ingredient sometimes lists mild gastrointestinal effects such as nausea, vomiting, or abdominal pain among the possible adverse events reported.

Q: Is it necessary to avoid driving while using Depyretin?

The safety data includes possible adverse events like mild sedation and dizziness. The potential for these CNS effects means that individuals must be aware of how the medication affects them before engaging in activities like driving or operating machinery.

Q: Is Depyretin known to interact with commonly used antidepressants?

The official documentation for the active ingredient does not formally list specific interactions with most commonly used antidepressants. Information regarding the co-administration of medications and supplements is provided on all product labels.

Q: Can Depyretin affect blood pressure readings?

Some clinical research has examined the potential for the active ingredient to cause a slight increase in systolic blood pressure, particularly when used regularly at the maximum daily dose. Research has examined this effect, but it is not a universally established finding in all regulatory documents.

Q: Can Depyretin affect the results of routine lab tests?

Regulatory documentation notes that the active ingredient may interfere with the results of certain laboratory tests, including some tests that measure blood glucose and uric acid levels.


Q: What happens if a dose of Depyretin is missed?

Patient counseling information often advises taking the missed dose as soon as the patient remembers. If it is almost time for the next scheduled dose, the missed dose should be skipped, and the regular dosing schedule resumed. It is stated that a dose should not be doubled to compensate for a missed dose.

How should Depyretin be stored and disposed of?

How to Store and Dispose of Depyretin

The following requirements detail the official storage, handling, and disposal guidelines for Depyretin, as specified in regulatory labeling.

Official Storage Conditions

Requirement Statement
Temperature Store at controlled room temperature, 20°C to 25°C (68°F to 77°F).
Protection Keep in the original container, protected from moisture and light. Do not freeze.
Child Safety Always keep this medicine out of the reach of children.

Handling and Disposal

The stability of Depyretin is maintained by keeping the container tightly closed. If the product requires reconstitution, use the solution within the specified in-use period, and discard any unused portion thereafter.

To dispose of expired or unused Depyretin, utilize an authorized drug take-back program. If no program is available, follow government guidance for safe at-home disposal to ensure the medicine does not contaminate water sources or enter the household trash unless specifically permitted.

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

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