Acamol

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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.

Overview of Acamol

Property Description
Active ingredient Acetaminophen (Paracetamol, APAP)
Form Tablet, Capsule, Liquid, Suppository, IV Solution
Pharmacological class Analgesic and Antipyretic Agent
Common use Symptomatic relief of mild-to-moderate pain and fever
Origin Synthetic compound (P-aminophenol derivative)

Acamol is a trade name for a widely used medicinal product that functions as a non-opioid analgesic and antipyretic agent. Its sole active ingredient is Acetaminophen (INN), which is globally recognized as Paracetamol (C8H9NO2), a synthetic compound derived from P-aminophenol. This drug is classified as a simple analgesic that is typically available over-the-counter (OTC) in multiple forms, establishing its role as an accessible household remedy.

What Type of Medicine is Acamol?

Acamol is clinically recognized for its effective modulation of pain and fever through a central mechanism of action within the Central Nervous System. Pharmacological studies confirm that the drug achieves its therapeutic benefit by raising the body’s pain threshold and acting on the hypothalamic heat-regulating center. This process results in effective fever reduction and a central analgesic effect, distinguishing it from many Nonsteroidal Anti-inflammatory Drugs (NSAIDs) which primarily target peripheral inflammation.

Composition, Forms, and General Therapeutic Purpose

Acamol’s general therapeutic purpose is confined to the symptomatic management of non-specific discomforts such as mild-to-moderate pain and fever reduction. The medicine is formulated around the single chemical entity, Acetaminophen, and is offered in various pharmaceutical preparations designed for diverse routes of administration. These forms include standard oral dose tablets and liquids, rectal suppositories, and sterile parenteral (intravenous) solutions, which allows for use across different patient needs and clinical settings.

What side effects are possible with Acamol?

Possible Side Effects and Safety Information

Acamol (Acetaminophen/Paracetamol) is associated with an official safety profile that defines most documented adverse reactions as Rare or Very Rare, according to government regulatory classifications. The primary safety concerns documented in labeling pertain to severe organ effects and hypersensitivity, and the risk profile is strictly linked to dosage and pre-existing health conditions.


Official Adverse Reaction Scope

The frequency framework utilized in regulatory documents classifies most documented effects by their incidence:

  • Rare (1 in 1,000 to 1 in 10,000 users): Includes various blood disorders (e.g., thrombocytopenia, agranulocytosis) and certain types of non-serious hypersensitivity reactions.
  • Very Rare (less than 1 in 10,000 users): Includes severe events such as anaphylaxis and life-threatening Severe Cutaneous Adverse Reactions (SCARs), including Stevens-Johnson Syndrome (SJS).

Adverse events are formally grouped into System-Organ Classes, primarily involving Hepatobiliary disorders (liver), Blood and lymphatic system disorders, and Skin and subcutaneous tissue disorders.


Serious Safety Considerations

The most significant serious risks officially documented are Hepatotoxicity (severe liver damage) and the aforementioned SCARs. These reactions are emphasized in regulatory materials as critical risks.

The regulatory profile highlights that the risk of severe hepatotoxicity is associated with cumulative high doses or prolonged exposure. Furthermore, safety restrictions apply to individuals with pre-existing severe hepatic impairment and severe renal impairment due to their increased susceptibility to adverse effects. The most universally emphasized constraint in official labeling relates to the danger of acute overdosage.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose of Acamol (Acetaminophen/Paracetamol) is defined in regulatory documents as a serious risk with the potential to cause delayed liver damage (hepatic necrosis), liver failure, and death. Immediate medical attention is required for any suspected overdose, even if the individual appears to be without symptoms.

Documented Manifestations and Serious Outcomes

Symptoms may initially be non-specific or absent, but potential manifestations listed in official labeling include pallor, nausea, vomiting, and abdominal pain within the first 24 hours. Severe, delayed outcomes, typically appearing 12 to 48 hours later, involve jaundice, acute renal failure (acute tubular necrosis), metabolic acidosis, and serious systemic events like cardiac arrhythmias.

Required Emergency Actions

The FDA and other regulatory authorities mandate specific actions due to the delayed nature of the toxicity:

  • Seek immediate medical attention or contact Poison Control right away, even if the person feels well.
  • Urgent hospital referral and monitoring are required.

Antidote and Treatment

Official labeling documents that Acetylcysteine (NAC) is the specific antidote indicated to prevent or lessen hepatic injury. Other management options, such as the use of activated charcoal if administered within one hour, and oral methionine, are also described in regulatory sources. Furthermore, the hazards of overdose are noted to be greater in patients with non-cirrhotic alcoholic liver disease.

Therapeutic Uses of Acamol

Main Uses and Benefits of Acamol (Acetaminophen)

Acamol, which contains the active ingredient Acetaminophen (Paracetamol), is a simple analgesic and antipyretic agent, commonly applied across acute and episodic clinical presentations where supportive symptom relief is needed.

Acetaminophen may assist in easing symptoms related to mild-to-moderate physical discomfort and supporting the management of systemic temperature elevation.


Managing Symptomatic Discomfort

Acamol's therapeutic relevance is applied in managing symptomatic discomfort across conditions characterized by periods of heightened symptoms. It is commonly applied for headaches, toothaches, muscular aches, and pain associated with menstrual cramps (dysmenorrhea). It is used for managing symptom clusters that may appear suddenly or intensify over time, offering symptomatic relief that supports general well-being during symptomatic phases.

“The medication is commonly applied in contexts where additional support for temperature management is needed, particularly during acute symptomatic episodes like the cold or flu.”

Acamol is relevant for easing symptoms related to systemic temperature elevation, which supports the patient during difficult episodes by easing distress and contributes to improved day-to-day comfort during symptomatic periods. It may also be part of symptomatic management in situations requiring short-term assistance following minor trauma or dental procedures.


Quick Fact: Supportive Management for Physical Discomfort and Systemic Imbalance Acamol is considered relevant across conditions presenting with acute episodes where symptoms related to physical discomfort and systemic imbalance require supportive management.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Acamol?

This section outlines the eligibility criteria for Acamol (Acetaminophen/Paracetamol) based strictly on official governmental regulatory documents, detailing which populations are permitted, restricted, or contraindicated.


Eligibility Scope

Classification Population Rule Regulatory Basis
Contraindicated Patients with known Hypersensitivity to the drug or formulation components. Absolute Non-Eligibility
Patients with Severe Active Liver Disease or Severe Hepatic Impairment. Absolute Non-Eligibility
Conditional Use Patients with Severe Renal Impairment or Chronic Alcoholism. Requires Caution / Adjustment
Patients with non-severe Hepatic Impairment. Requires Caution
Established Use Adults and Adolescents (ge 13 years). Standard Eligibility
Pediatric Patients (typically 2 years and older). Standard Eligibility
Reproductive Status Lactation (Breastfeeding) is generally suitable. Suitable for Use
Pregnancy is generally acceptable when clinically needed, advising the lowest effective dose for the shortest duration. Conditional Acceptance

Age-Related Rules

Use is not established for the intravenous formulation in pediatric patients younger than 2 years of age. For geriatric patients, no specific dose adjustment is required based on age alone, though caution is advised for underlying organ function limitations. Eligibility for infants and children under 2 years for oral products is typically restricted to use under medical advice.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Interaction-Related Restrictions

The most critical restriction is the formal prohibition against co-administration with any other product containing acetaminophen (or paracetamol) to prevent duplicate exposure and the associated risk of acute liver failure. The intravenous formulation is also formally contraindicated in patients with severe active liver disease or severe hepatic impairment.

Documented Pharmacokinetic and Pharmacodynamic Patterns

  • Anticoagulants: Prolonged, regular co-administration with Warfarin and other coumarins enhances the anticoagulant effect, which increases the documented risk of bleeding. This is typically associated with sustained daily use.
  • Enzyme Inducers: Substances that induce liver enzymes (e.g., Rifampicin, Phenytoin, Barbiturates) may increase the formation of the toxic acetaminophen metabolite, which raises the hepatotoxic potential.
  • Clearance Modifiers: Probenecid is documented to reduce the clearance of paracetamol by approximately 50%, resulting in increased systemic exposure.
  • Absorption Modifiers: Metoclopramide and Domperidone accelerate the rate of absorption, while Cholestyramine reduces it.

Timing and Substance Constraints

  • The intake of Cholestyramine must be separated from paracetamol administration by at least one hour to mitigate its effect on absorption.
  • The chronic consumption of three or more alcoholic drinks per day while using acetaminophen is officially linked to an increased risk of severe liver damage.

Regulatory documents define the interaction profile by establishing prohibitions on duplicate active ingredient exposure and outlining constraints related to hepatic enzyme effects, which directly impact the risk of hepatotoxicity.

Mechanism of Action

The mechanism of action for Acamol (Acetaminophen/Paracetamol) is defined by its selective, multi-modal engagement with key targets primarily within the Central Nervous System (CNS), resulting in the functional adjustment of thermoregulatory and nociceptive signaling pathways.


Central Regulation of Core Body Temperature

This mechanism focuses on the hypothalamus, the brain's thermoregulatory center. Acamol inhibits the activity of Cyclooxygenase (COX) enzymes there, reducing the synthesis of Prostaglandin E2 ( PGE2) which mediates the elevation of the thermal set point. The resulting physiological cascade allows heat-loss mechanisms (like sweating) to activate, leading to the return of the thermal set point toward baseline.


Multi-Target Analgesia in the Spinal Cord

Central analgesia results from a complex action involving the active metabolite AM404, which modulates central pain pathways. This metabolite directly activates Transient Receptor Potential Vanilloid-1 (TRPV1) receptors and indirectly potentiates the endocannabinoid system by inhibiting the breakdown of Anandamide (AEA). These actions work synergistically in the spinal cord and brainstem to influence the nociceptive threshold via the inhibition of signal transmission.


Mechanistic Specificity and Limitations

The drug's mechanism is characterized by its predominant central focus and its minimal effect on peripheral inflammation. Its COX inhibitory action is less effective in peripheral tissues, which contain high levels of peroxides. This constraint functionally limits the mechanism to central pain modulation and thermoregulation, defining a clear physiological boundary for its mechanistic scope.

Dosage and Administration Information

The administration of Acamol, which contains Acetaminophen (Paracetamol), is strictly governed by regulatory guidelines, detailing the approved routes, dose limits, frequency, and duration of use.

Official Routes and Dose Limits

Acamol is officially administered through three routes: Oral (tablet, capsule, liquid), Rectal (suppository), and Intravenous (IV) (injection).

Patient Group Single Dose Range Maximum Total Daily Dose Minimum Dosing Interval
Adults (ge 50 kg) 325 mg to 1000 mg 4000 mg (from all sources) 4 hours
Adults (<50 kg) / Children Weight-based: 12.5 mg/kg to 15 mg/kg 75 mg/kg (up to 3750 mg) 4 to 6 hours

Frequency, Preparation, and Use Constraints

Dosing Frequency: Standard immediate-release forms are typically taken every 4 to 6 hours as needed, while observing the minimum 4-hour interval. The maximum dose of 4000 mg must be accounted for by all acetaminophen-containing products taken over a 24-hour period.

Administration Details: Oral forms can be taken with or without food. The intravenous solution must be administered via a 15-minute intravenous infusion. Extended-release tablets must be swallowed whole and should not be crushed or chewed.

Duration: For over-the-counter use, the product should generally not be used for more than 10 days for pain or 3 days for fever, unless under medical direction.

Special Populations: Dose adjustments are required for patients with severe renal impairment or hepatic impairment; for instance, longer dosing intervals or a reduced total daily maximum (e.g., 2000 mg for some hepatic conditions) are warranted as specified in the prescribing information.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Acamol

The research evidence for Acamol (Acetaminophen/Paracetamol) is centered on the exploration of symptom changes. The evidence base, derived from Randomized Controlled Trials (RCTs) and systematic reviews, covers its use across various populations and symptom patterns, while also highlighting areas where data remains uncertain or limited.


Research Evidence for Acute Pain Management and Fever Reduction

A large number of short-term RCTs were evaluated in patients experiencing acute, moderate pain, such as that following dental or minor surgical procedures, exploring how symptoms evolved over time. Studies monitored patient-reported outcomes describing perceived discomfort, focusing on how rapidly outcomes related to physical discomfort evolved in the observed populations. Research examined changes in pain intensity over short timeframes across adults and children.

Similarly, a large body of evidence was evaluated in the context of systemic temperature elevation (fever). These trials focused on monitoring physiological strain or stress by tracking body temperature over defined time intervals. These studies were applied in research contexts involving fluctuating or unstable symptoms in both pediatric populations and adults. Research provides insight into short-term changes.

Areas of uncertainty in the acute setting include that follow-up durations were limited in many studies, focusing on immediate rather than extended relief. Comparative evidence is lacking for certain, specific acute pain types, and evidence quality varies across studies when non-standard outcomes are measured.


Research Landscape for Episodic and Chronic Pain Conditions

This part of the overview describes the evidence base for less acute uses, detailing the types of studies that have explored Acamol. This section describes the scientific findings regarding the level of evidence and the consistency of outcomes reported in the literature for these contexts.

For episodic headache, studies were primarily short-term, single-episode trials applied in studies examining patient-reported experiences of discomfort. The research explored outcomes describing episodic or acute changes in symptom intensity in adults. Studies contribute to the broader evidence landscape regarding short-term changes in headache severity.

Evidence Consistency for Chronic Musculoskeletal Pain

In conditions characterized by fluctuating or episodic manifestations over extended periods, such as chronic musculoskeletal pain (e.g., osteoarthritis or low back pain), the evidence is limited. RCTs and major systematic reviews have explored outcomes reflecting daily functioning or activity level over intermediate durations (typically 6 to 12 weeks). The evidence base for this chronic context is generally considered low, as findings were mixed across multiple systematic reviews.

Key Studies & References

  1. Efficacy and safety of ibuprofen and acetaminophen in children and adults: a meta-analysis and qualitative review

How should Acamol be stored and disposed of?

How to Store and Dispose of Acamol (Paracetamol)

Official regulatory information outlines specific rules for the storage and disposal of Acamol to maintain its stability and ensure safety.


Storage Requirements

Condition Requirement (Regulatory Basis)
Temperature Store below 30 C (for most formulations) in a cool, dry, and well-ventilated place.
Protection Keep the medicine in its original container and protected from light and moisture.
Child Safety It is mandatory to Keep out of the reach of children.
Stability Certain liquid forms must be used immediately after opening or dilution, as stability time is limited.

Disposal Instructions

Unused or expired Acamol must be managed according to specific regulatory mandates. The product should be disposed of via an approved waste disposal plant or designated collection site. It is explicitly forbidden to dispose of the product by pouring it into the sink, toilet, or any sewage system or water course.

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

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