Afebril

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Medically reviewed

Laura Arias

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 Afebril

Property Description
Active Ingredient Ibuprofen
Form Tablet, Oral Suspension, Capsule
Pharmacological Class Non-steroidal Anti-inflammatory Drug (NSAID)
Common Use Pain relief, Fever reduction
Origin Synthetic, Propionic Acid Derivative

Afebril is a proprietary medicine whose primary component is the well-established active ingredient, Ibuprofen. It is defined pharmacologically as a Non-steroidal Anti-inflammatory Drug (NSAID), placing it in a class of agents that modulate pain and inflammation without relying on steroids. The drug is a synthetic compound, chemically categorized as a propionic acid derivative, which determines its fundamental biological activity.


What Type of Medicine is Afebril?

Afebril is an NSAID and a synthetic, single-ingredient product used to provide generalized relief from discomfort and fever. This drug entity is classified as an analgesic (pain reliever) and an antipyretic (fever reducer), and it also possesses distinct anti-inflammatory properties. Ibuprofen is used for managing common symptoms like headaches or muscle aches across various pain states. Unlike some purely localized treatments, Afebril exerts its therapeutic effects systemically after oral administration, addressing the underlying chemical processes throughout the body. The inclusion of the oral suspension form positions Afebril for use across different patient groups, including those who may have difficulty swallowing tablets.


Composition, Form, and General Purpose

The entirety of Afebril's effect originates from its sole active substance, Ibuprofen. Afebril is formulated into several high-level dosage forms suitable for oral consumption, including the solid tablet and a liquid oral suspension. The general purpose of the medicine is to offer multifaceted relief: it functions as a primary pain reliever and also acts to reduce the elevated body temperature associated with fever, serving the essential function of managing discomfort and restoring the body's thermal balance. Ibuprofen acts as an analgesic for general acute pain.


Understanding the Action of Ibuprofen

Ibuprofen primarily works by interfering with the body's natural production of chemical signaling molecules called prostaglandins. These molecules are crucial for transmitting pain signals, triggering the body's inflammatory response, and elevating the temperature set point in the brain, which causes fever. By interrupting the creation of these key mediators, Afebril effectively reduces the chemical drivers of pain and swelling and allows the body's temperature control center to reset to a normal level.

What side effects are possible with Afebril?

Possible Side Effects and Safety Information

The safety profile of Afebril (Ibuprofen) is organized by regulatory bodies into System-Organ Classes to detail the range of potential adverse effects. The most commonly documented non-serious effects include gastrointestinal distress, such as nausea, dyspepsia, and abdominal pain, along with headache and general skin rash; these are often categorized as uncommon in regulatory listings.

Adverse reactions are classified by frequency, with less common effects being categorized as Rare or Very Rare. These serious reactions include gastrointestinal bleeding, ulceration, and perforation, as well as severe, acute effects on the renal and hepatic systems. The regulatory profile explicitly documents the potential for cardiovascular thrombotic events, including Myocardial Infarction and Stroke, which are recognized as serious safety considerations linked to the NSAID class.

Classification Examples of Adverse Reactions (Regulatory)
Uncommon Headache, Dyspepsia, Abdominal Pain, Skin Rash
Very Rare Severe Hypersensitivity (Anaphylaxis), Acute Renal/Hepatic Failure, SCARs

The safety documentation notes specific duration- and dose-related patterns. The risk of serious cardiovascular events is documented to increase with longer duration of use and is associated with higher daily doses of the medicine. Furthermore, older adults are specifically noted to have an increased frequency and severity of adverse reactions, particularly fatal gastrointestinal bleeding, which constitutes a specific population safety consideration.

Overdose and Emergency Response

The official regulatory documentation for Afebril (Ibuprofen) overdose describes a range of clinical manifestations and outlines mandatory emergency actions. Overdose presentations can range from mild symptoms to severe, life-threatening events.

Documented Clinical Manifestations and Signs

Overdose may initially present with gastrointestinal distress, including nausea, vomiting, stomach pain, and diarrhea. Central Nervous System (CNS) effects are also common and include drowsiness, dizziness, severe headache, confusion, and tinnitus. These symptoms reflect the drug's systemic impact at toxic levels.

Severe and Life-Threatening Outcomes

Officially documented severe risks include profound CNS depression, escalating to convulsions and coma. The overdose profile also specifies the potential for cardiovascular complications such as severe low blood pressure (hypotension) and life-threatening outcomes such as acute kidney failure, metabolic acidosis, and major gastrointestinal bleeding or perforation. Cardiac arrest is listed as a potential outcome in severe cases.

Mandated Emergency Action and Management

The official guidance explicitly mandates that immediate medical attention must be sought for any suspected overdose. Individuals must contact emergency services or the Poison Control Center without delay. Management relies solely on symptomatic and supportive care, as no specific pharmaceutical antidote is documented in the regulatory labeling. Treatment may include the administration of activated charcoal for gastrointestinal decontamination, continuous monitoring of vital signs, and corrective measures for metabolic and cardiovascular instability.

Therapeutic Uses of Afebril

What Afebril Treats: Main Uses and Benefits

Afebril (Ibuprofen) is a medication commonly used to help manage distressing symptoms associated with a range of acute and chronic conditions. It is applied across therapeutic domains where additional symptomatic support is needed to ease the overall symptom burden. The medication's uses include providing support for pain, managing symptoms related to fever, and addressing inflammation.


Therapeutic Scope

Afebril helps address symptom clusters that may become intense or disruptive, such as headaches, dental discomfort, the acute cramping pain of primary dysmenorrhea, and the systemic aches associated with flu or cold. The medication is relevant for addressing symptom clusters that become more disruptive during flare-ups of chronic conditions, including osteoarthritis and rheumatoid arthritis.

“Afebril is generally applied in scenarios where additional management of discomfort is required, helping patients cope more steadily with symptom fluctuations.”

By working to ease symptoms related to physical discomfort and inflammatory states, Afebril contributes to improved day-to-day comfort during symptomatic periods and may assist with maintaining a sense of stability when symptoms are more noticeable.


Quick Fact: Support for Episodic Discomfort

Afebril is relevant for managing recurrent, episodic manifestations, such as menstrual pain and tension headaches, providing supportive relief when symptoms interfere with routine activities.

Regulatory References

  1. NIH DailyMed Label for Ibuprofen

Eligibility and Restrictions for Use

Who Can and Cannot Use Afebril?

Population eligibility for Afebril (Ibuprofen) is strictly defined by official government regulatory documents. These rules classify individuals into groups who are eligible for use, require restricted use, or are absolutely contraindicated.

Populations Contraindicated (Must Not Use)

Use is strictly prohibited for patients with a known severe hypersensitivity to Ibuprofen or prior severe allergic reactions to Aspirin or other NSAIDs. Afebril is also contraindicated in patients with severe hepatic failure, severe renal failure, or severe heart failure (NYHA Class IV). Those with active gastrointestinal bleeding or a history of recurrent peptic ulcers must not use this medicine. Furthermore, it is prohibited in patients immediately following Coronary Artery Bypass Graft (CABG) surgery and in women during the third trimester of pregnancy.

Age and Condition-Based Restrictions

While use is allowed for adults and adolescents 12 years, use in children is restricted by specific age and weight criteria. Elderly patients (60 years) should use the lowest effective dose for the shortest duration due to increased risk of serious adverse effects. Restricted use is also required for patients with mild or moderate renal/hepatic impairment and those with pre-existing cardiovascular risk factors.

What should I know about interactions with other medicines?

Afebril's interaction profile is categorized based on formal regulatory documentation regarding co-administration and potential risk amplification.

Contraindicated Combinations

Certain combinations are classified as contraindicated due to a high risk of serious events. This includes concurrent use with other Non-steroidal Anti-inflammatory Drugs (NSAIDs), including COX-2 selective inhibitors, which substantially increases the chance of gastrointestinal bleeding or ulceration. The medicine is also prohibited for treating peri-operative pain in the setting of Coronary Artery Bypass Graft (CABG) surgery.

Pharmacodynamic and Clearance Effects

Pharmacodynamic interactions involve an additive effect on the body. Co-administration with Anticoagulants (e.g., Warfarin), Oral Corticosteroids, or Selective Serotonin Reuptake Inhibitors (SSRIs) is associated with an amplified risk of hemorrhage. The drug can also decrease the intended effect of Antihypertensives and Diuretics, which increases the risk of renal impairment. Pharmacokinetic interference involves Afebril reducing the renal clearance of certain drugs, such as Lithium and Methotrexate, potentially resulting in elevated plasma concentrations of those medicines.

Timing and Substance Interactions

A specific timing rule is required when taking low-dose Aspirin for cardioprotection: Afebril must be administered at least eight hours before or thirty minutes after the immediate-release Aspirin dose to prevent interference with its antiplatelet effect. Official warnings note that regular consumption of alcohol may significantly increase the risk of gastrointestinal bleeding. The interaction profile highlights that elderly patients carry an increased risk of adverse outcomes from these documented drug interactions.

Mechanism of Action

Modulation of Inflammatory Mediator Production

Afebril’s core action is the reversible, non-selective competitive inhibition of the Cyclooxygenase ( COX-1 and COX-2) enzymes. This molecular action blocks the first step in the Arachidonic Acid Cascade, thereby reducing the synthesis of inflammatory mediators, primarily prostaglandins. This mechanism results in the modulation of prostaglandin-mediated signaling within peripheral tissues.


Attenuation of Nociceptive Sensitization and Thermoregulatory Adjustment

The resultant decrease in peripheral prostaglandins leads to the de-sensitization of nociceptors (afferent nerve fibers), attenuating the signal amplification that is relayed centrally. Concurrently, the inhibition of COX in the central nervous system prevents prostaglandin-induced elevation of the hypothalamic thermoregulatory set point, re-establishing the central set point for thermal homeostasis. This targeted pathway interference modifies molecular steps that shape the resulting modulation of nociception and thermoregulation.

Dosage and Administration Information

How to Use Afebril: Official Administration Guidelines

Afebril (Ibuprofen) is administered according to standardized protocols. The official methods specify the approved routes, dosage limits, and duration principles that structure its use in clinical practice.


Administration Methods and Dosing

The primary route of administration is Oral, available as tablets, capsules, and oral suspension. For specific acute or institutional needs, an Intravenous (IV) formulation may be used under professional supervision. Standard dosing for acute use ranges from 200 mg to 400 mg per single dose, administered intermittently. For chronic conditions, higher daily limits up to 3200 mg are specified, typically taken in divided doses. Guidelines specify a maximum daily dose of 1200 mg for non-prescription use.


Timing and Duration Principles

The medicine is typically taken every 4 to 6 hours as needed for temporary symptoms, or in a scheduled pattern for ongoing conditions. Dosing is flexible concerning meals; it may be administered with food or milk to aid gastrointestinal comfort. The general principle is to use the lowest effective dose for the shortest duration necessary. For acute pain or fever, oral use is generally limited to 10 days or less. For the oral suspension, accurate measurement requires the use of a calibrated dosing device, and pediatric dosing is based on the patient's body weight.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Afebril

The Research Foundation for General Pain and Fever

The research landscape for the active component of Afebril includes many short-term Randomized Controlled Trials (RCTs) and systematic reviews that combine data from multiple studies. This body of evidence was used in research exploring how symptoms change over time and focuses on acute symptomatic management. The main areas of research examined outcomes related to patient-reported physical discomfort and changes in physiological measurements.


Studies Evaluating Acute Pain Relief

Short-term RCTs were applied in studies examining patient-reported experiences of pain in cohorts of adults and adolescents dealing with acute pain, such as pain following dental procedures or minor surgeries. The studies monitored outcomes related to perceived discomfort, including measuring changes in symptom intensity using standard patient questionnaires. Research reports described short-term differences in measured outcomes compared to non-active controls in these acute settings.

Studies Evaluating Fever Reduction (Antipyresis)

The evidence primarily consists of short-duration comparative trials applied in research contexts involving fluctuating or unstable symptoms. These studies monitored outcomes linked to physiological strain, specifically measuring the change in body temperature and the duration of that measured change. Populations evaluated included both febrile children and adults.


Evidence for Specific Symptom Management

Research on Menstrual Pain (Primary Dysmenorrhea)

Research exploring short-term symptom changes was conducted using RCTs across typically one to three menstrual cycles in women experiencing primary dysmenorrhea. Studies monitored outcomes capturing phases of heightened symptom activity, such as the reported severity of pain and cramping, and patterns in the use of additional pain medications.

Research on Symptomatic Relief in Arthritis

Studies were conducted using both intermediate-term RCTs (lasting several weeks) and long-term observational settings evaluating daily-life functioning in adults diagnosed with Osteoarthritis or Rheumatoid Arthritis. Research examined outcomes reflecting daily functioning, such as change in joint pain and functional measures. While short- to intermediate-term research suggests an association with short-term symptomatic changes, the evidence is limited regarding disease modification.


Research Gaps and Remaining Uncertainties

The totality of the research provides context but not individual predictions. Long-term data primarily comes from observational settings, meaning long-term outcomes are not fully established regarding the durability of symptom control. Furthermore, research evaluated cohorts of children and older adults separately, but data for certain subgroups (such as children with specific comorbidities) are limited.

Key Studies & References

  1. Comparison between ibuprofen and paracetamol in primary dysmenorrhea
  2. How does ibuprofen compare to other NSAIDs for migraine treatment? (Systematic Review Summary)

Frequently Asked Questions (FAQ)

Common questions about Afebril (FAQ)

Q: What is Afebril and how does it work?

Afebril is a medicine used to reduce fever (pyrexia) and relieve mild to moderate pain (analgesia). It contains the active ingredient paracetamol (also known as acetaminophen).

It works primarily by inhibiting certain substances in the brain and spinal cord, called prostaglandins, which are involved in the processes of pain and fever. By reducing the production of these substances, Afebril helps to lower a raised body temperature and relieve pain.


Q: Is Afebril safe for children?

Yes, Afebril can be used to treat fever and pain in children, but it is crucial to use the correct formulation and dose based on the child's weight and age.

  • Children's formulations (e.g., liquid suspensions or chewable tablets) are typically available with specific dosing instructions.
  • The dose is calculated based on the child's weight to ensure effectiveness and safety, and an overdose can cause serious liver damage.

Always consult the packaging or a healthcare professional to determine the appropriate dose for your child. Never give a child more than the recommended dose or combine it with other medicines that contain paracetamol.


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

Afebril usually starts to relieve pain or reduce fever within 30 minutes after taking it.

  • The maximum pain-relieving effect is generally reached within one to two hours.
  • If you or your child does not feel better after a few doses, or if the fever and pain worsen, you should consult a doctor or pharmacist.

Q: Can I take Afebril if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, you should always consult your doctor, pharmacist, or midwife before taking any medication, including Afebril.

  • Pregnancy: Afebril can generally be used during pregnancy if necessary, but it should be used at the lowest effective dose for the shortest possible time and at the lowest possible frequency.
  • Breastfeeding: Afebril is often considered safe for use while breastfeeding, as only small amounts pass into breast milk, which are generally not harmful to the baby.

Your healthcare provider is the best source of advice to weigh the benefits against any potential risks for your specific situation.


Q: What is the maximum daily dose of Afebril for an adult?

For a typically healthy adult, the maximum daily dose of Afebril (paracetamol) is usually 4,000 milligrams (mg) (or 4 grams) spread throughout the day.

  • It is generally recommended to take no more than 1,000 mg (1 gram) per single dose.
  • Doses are typically taken every four to six hours as needed.

Important: Taking more than the recommended maximum daily dose can lead to serious liver damage, even if you feel fine initially. People with certain health conditions, like liver problems, or who drink alcohol regularly, may need to take a lower maximum daily dose. Always follow the specific instructions on the medicine's packaging or as given by a healthcare professional.

How should Afebril be stored and disposed of?

How to Store and Dispose of Afebril (Ibuprofen)

The official requirements for storing Afebril are designed to preserve product stability and ensure public safety.

Storage Requirements

Afebril must be stored at controlled room temperature, typically between 20° to 25°C (68° to 77°F). The container must be kept tightly closed and the medicine should remain in its original packaging. It is a mandatory requirement to keep the product out of the sight and reach of children and pets to prevent accidental ingestion.

Disposal Instructions

Expired or unused Afebril should be disposed of using a drug take-back program as the preferred method. If a take-back program is unavailable, the medicine must be removed from its packaging, mixed with an undesirable substance like coffee grounds, and placed in a sealed container for the household trash. The product is not recommended for flushing into the toilet or down the drain.

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

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