Parinmol

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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 Parinmol

Quick Facts

Property Description
Active Ingredient Acetaminophen (Paracetamol)
Form Tablet, capsule, solution, suppository, intravenous
Pharmacological Class Analgesic, Antipyretic, Non-opioid
Common Use Symptomatic relief of pain and fever
Origin Synthetic compound

Parinmol: Active Ingredient, Origin, and Pharmaceutical Classification

Parinmol is a medicinal product defined by its core substance, the active ingredient Acetaminophen, chemically known internationally as Paracetamol. It is classified as both an analgesic (pain reliever) and an antipyretic (fever reducer), placing it within the non-opioid pharmaceutical category.

Acetaminophen is a synthetic compound that forms the basis of a globally utilized class of medications. It is often employed as a foundational option for symptomatic relief in scenarios such as managing a common headache or reducing a fever associated with infection. The drug is typically available over-the-counter and is utilized globally for its established profile as a non-opioid agent, often serving as an alternative for patients with contraindications to Nonsteroidal Anti-inflammatory Drugs (NSAIDs).

Core Function: General Purpose and Therapeutic Role

The general function of Parinmol is established by its capacity to provide symptomatic relief for mild-to-moderate discomfort and to reduce pyrexia. The primary benefit of the active ingredient lies in its focused mechanism of action within the central nervous system, where it modulates the chemical mediators responsible for signaling pain and regulating the body’s temperature set point. This action provides a focused approach to managing fever and perceived pain, positioning it as a foundational agent in this context.

Forms and Preparation Types

Acetaminophen is manufactured in diverse pharmaceutical preparations, ensuring flexibility across patient populations. These preparations include common oral forms, such as the tablet and capsule, and liquid forms, including the oral solution or suspension. For specialized needs, Acetaminophen is also available as rectal suppositories and sterile intravenous solutions for clinical use. These preparations define the available routes of administration—oral, rectal, and intravenous—where the composition consists of the active ingredient combined with suitable pharmaceutical excipients or an aqueous base.

Regulatory References

  1. Acetaminophen - StatPearls - NCBI Bookshelf
  2. Acetaminophen: MedlinePlus Drug Information

What side effects are possible with Parinmol?

Possible Side Effects and Safety Information

Regulatory safety documents classify the adverse effects of Parinmol (Acetaminophen/Paracetamol) by the affected body system and their reported frequency. The safety profile is heavily defined by concerns related to the Hepatobiliary Disorders and Skin and Subcutaneous Tissue Disorders system-organ classes.

Serious Adverse Reactions and Frequency

Severe and clinically significant adverse reactions are generally classified as Very Rare (less than 1 in 10,000 users) in post-marketing data. The most critical officially documented serious adverse reactions include acute liver failure, particularly linked to exceeding the maximum recommended daily dose or concurrent use of other acetaminophen-containing products. Severe cutaneous adverse reactions (SCARs), such as Stevens-Johnson syndrome (SJS) and Toxic Epidermal Necrolysis (TEN), along with anaphylaxis, are also listed as serious, very rare events.

System-Organ Classes and Risk Patterns

Adverse effects listed in official labeling include blood dyscrasias (e.g., thrombocytopenia and agranulocytosis) and adverse renal disorders. Hepatic dysfunction and blood disorders are classified as very rare events. The risk of severe liver damage is directly tied to dose limits, as confirmed by regulatory constraints. Signs of drug-induced liver injury, particularly after an overdose, may be delayed, sometimes appearing 24 to 48 hours after ingestion. Furthermore, the label notes that concurrent use with the regular ingestion of three or more alcoholic drinks daily may increase the risk of severe liver damage.

Population-Specific Considerations

Regulatory documents include safety considerations for specific populations. The use of Parinmol is generally constrained or contraindicated in individuals with severe hepatic impairment or severe active liver disease. Special caution and a potential dose reduction may be necessary for patients with severe renal impairment.

Overdose and Emergency Response

The official regulatory profile for Parinmol (Acetaminophen/Paracetamol) overdose is defined by the critical risk of delayed, severe organ injury, primarily hepatic necrosis leading to Acute Liver Failure. Initial documented manifestations are often non-specific or absent, typically limited to nausea, vomiting, pallor, anorexia, and abdominal pain. Signs of severe damage, such as jaundice or encephalopathy, may not become apparent until 12 to 48 hours post-ingestion.

Immediate medical attention is mandated following any suspected overdose, and patients must contact emergency services or Poison Help right away, even if the individual feels well. This requirement exists because the life-threatening progression of liver damage may be silent in the early stages. Overdose is classified as a potentially fatal event.

Risk factors that increase the hazard of toxicity, as noted in official labeling, include underlying hepatic impairment and chronic alcoholism. Management involves urgent assessment, including measurement of plasma paracetamol concentration at 4 hours or later to guide treatment with the specific antidote, N-acetylcysteine (NAC). Early administration of NAC is essential to mitigate the risk of irreversible liver damage.

Therapeutic Uses of Parinmol

The active ingredient in Parinmol is associated with symptomatic relief across key domains, including both pain and fever, and contributes to easing the overall symptom load during symptomatic periods. This non-opioid agent is commonly used across conditions presenting with acute episodes of physical discomfort.

Its analgesic properties are applied in addressing symptom clusters related to headaches, acute dental pain, muscular aches, and menstrual cramps. Quick Fact: Relevant for Managing Mild-to-Moderate Pain. It is also relevant in clinical settings that involve temporary physiological imbalance marked by fever, typically accompanying seasonal illnesses like the common cold or flu. This supportive symptom management is relevant for easing the overall symptom burden when fever becomes more noticeable.

“The use of this agent is intended to help patients cope more steadily with symptom fluctuations and support general well-being during symptomatic phases.”

Parinmol may assist with maintaining functional stability for diverse patient groups, including children and older adults. In these situations, the medication supports patients during episodes of heightened discomfort and is considered relevant when supportive symptom management is appropriate, especially for patients requiring an alternative to Nonsteroidal Anti-inflammatory Drugs (NSAIDs).

Regulatory References

  1. NIH StatPearls overview

Eligibility and Restrictions for Use

The official eligibility profile for Parinmol (Acetaminophen) is strictly defined by regulatory authorities based on patient population, underlying health status, and age. The medicine is contraindicated in patients with a known hypersensitivity to the active ingredient or any excipients in the formulation. Furthermore, individuals with severe hepatic impairment or severe active liver disease must not use this medication.

Use is permitted but requires special caution in populations with pre-existing conditions that affect metabolism or volume status. These groups include patients with non-severe hepatic impairment, severe renal impairment (e.g., creatinine clearance leq 30 mL/min), chronic alcoholism, chronic malnutrition, or severe hypovolemia.

Population Official Regulatory Status
Adults/Adolescents Generally eligible under labeled conditions.
Children < 2 Years Effectiveness for acute pain is not established for certain formulations.
Older Adults No overall differences in safety/effectiveness noted in studies.
Pregnancy/Lactation Acceptable when clinically needed, at the lowest effective dose for the shortest duration.

These classifications define the official boundaries of use as mandated by government drug agencies, establishing the populations allowed to use the drug and those explicitly excluded.

What should I know about interactions with other medicines?

The interaction profile for Parinmol is defined by official regulatory documents that specify restrictions and documented effects with certain medicinal products and substances. Co-administration with any other product containing acetaminophen (prescription or nonprescription) is formally restricted due to the established risk of cumulative severe liver damage (hepatotoxicity).

Interaction Category Specific Interaction Statement (Regulatory Basis)
Pharmacokinetic Interference Probenecid reduces the clearance of the active substance by approximately 50%, resulting in increased plasma exposure. Separately, co-administration with liver enzyme inducers (e.g., Phenytoin, Carbamazepine) may decrease exposure and is linked to increased formation of a toxic metabolite, heightening overdose risk.
Pharmacodynamic Effects Warfarin and other Coumarin derivatives, when used regularly and for prolonged periods, are documented to enhance the anticoagulant effect, increasing the potential for bleeding. Concomitant intake with the antibiotic Flucloxacillin has been associated with high anion gap metabolic acidosis in patients with specific risk factors.
Absorption and Timing Metoclopramide or Domperidone increase the rate of absorption of the active substance. Cholestyramine reduces absorption and must not be administered within one hour of Parinmol to mitigate this effect.
Population-Specific Risk The risk of severe liver damage is officially documented to be significantly higher for individuals consuming three or more alcoholic drinks daily. Regulatory guidance indicates that the maximum daily dose is subject to specified limitations for patients with chronic alcoholism.

Mechanism of Action

Parinmol's action involves two complementary mechanisms that operate predominantly within the Central Nervous System (CNS), altering signaling dynamics in pathways that influence temperature control and nociception.

Central Inhibition of Key Regulator Mediators

This domain describes the primary action on central Cyclooxygenase (COX) enzymes, where the drug reduces the synthesis of the regulatory mediator Prostaglandin E2 (PGE2) in the brain and spinal cord. This action focuses specifically on the hypothalamic thermoregulation pathway, leading to the lowering of the elevated thermoregulatory set-point and dampening of specific nociceptive signals via prostaglandin pathways.

Modulation of Endogenous Neurochemical Pathways

The drug's full analgesic component is defined by the action of its metabolite, AM404, which engages two key neurochemical systems. It both activates the Transient Receptor Potential Vanilloid-1 (TRPV1) receptors and inhibits the reuptake of the endocannabinoid anandamide, particularly in the spinal dorsal horn. This combined action potentiates descending pain inhibitory control and facilitates the attenuation of nociceptive signal flow from the spinal dorsal horn.

Mechanistic Specificity and Limitations

This mechanism is effective in low-peroxide environments like the CNS. However, the drug's functional COX inhibition is diminished in the presence of high concentrations of hydroperoxides (common in peripheral inflammation), which constrains the mechanism's influence on peripheral prostaglandin synthesis to systems governed by low peroxide tone.

Dosage and Administration Information

The use of Parinmol (Acetaminophen/Paracetamol) is governed by official instructions detailing the method, frequency, and maximum amount of administration. The drug is officially approved for use via oral (tablet, solution), rectal (suppository), and intravenous (IV) routes.

Official Dosing and Frequency

For adults weighing 50 kg or more, the standard oral or intravenous dose is typically 650 mg every 4 hours or 1,000 mg every 6 hours, as needed. The minimum interval between doses is officially mandated to be 4 hours. Crucially, the maximum total daily dose of acetaminophen from all products and all routes (oral, rectal, IV) must not exceed 4,000 mg in a 24-hour period.

Special Administration Conditions

IV Administration

The intravenous solution is administered as a slow infusion over 15 minutes in a clinical setting. The solution should be visually inspected and should not be used if particulate matter or discoloration is present.

Food Relation and Duration

Oral forms of the medicine may be taken with or without food; ingestion without food may lead to a faster onset of action. For non-prescription use, the official label advises consulting a healthcare professional if symptoms persist beyond 10 days for pain or 3 days for fever.

Population Adjustments

Dosing for individuals under 50 kg is based on weight (e.g., 15 mg/kg per dose), not standard adult doses. Furthermore, for patients with severe renal impairment, the minimum dosing interval must be officially extended (e.g., to 6 or 8 hours) to account for altered clearance.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Parinmol

Evidence for Use in Acute Pain Relief

Research has explored this medicine for acute physical discomfort through short-term, randomized controlled trials (RCTs) and systematic reviews. Studies were applied in research exploring how symptoms change over time across different situations, such as post-surgical procedures or episodes of dental pain. Researchers examined changes in pain intensity and patient-reported outcomes for discomfort. Research monitored populations that included adults with acute discomfort, hospitalized children, and adolescents.

Studies described patterns observed in research scenarios involving physical discomfort. The available evidence is sometimes characterized as High-level for specific severe painful episodes and Moderate-level for other types of acute discomfort. Findings indicate that the observed changes in pain scores were short-term and apply only to the specific populations studied.

Evidence for Use in Fever Reduction (Antipyresis)

This medicine was studied for its role in exploring outcomes related to elevated body temperature (pyrexia). Research includes clinical trials and systematic reviews exploring short-term symptom changes associated with fever. Outcomes examined included the measured change in body temperature and the resolution of associated patient discomfort. Studies were conducted during periods of increased symptom activity in both children and critically ill adults.

Research describes changes measured in body temperature. Reports on fever management in children are generally categorized as Moderate-level evidence. However, for critically ill adult patients, high-certainty evidence data show patterns related to a lack of change in mortality, even where temperature changes were observed. Findings were mixed regarding the influence on other overall patient outcomes.

What is Still Uncertain About Parinmol Evidence

The overall evidence landscape describes several areas where certainty remains low or research is limited. Results apply only to the populations studied, and there is acknowledged limited information for long-term outcomes for nearly all conditions. Evidence quality varies across studies, and comparative evidence is lacking in some areas, such as the functional outcomes of different formulations. For chronic conditions like low back pain, studies reported no measurable finding of a favorable change in pain intensity.

Key Studies & References

  1. Acetaminophen (NIH StatPearls)
  2. Acetaminophen (MedlinePlus Drug Information)

Frequently Asked Questions (FAQ)

Common questions about Parinmol (FAQ)


Q: Is Parinmol the same type of medicine as ibuprofen or naproxen?

According to official regulatory classifications, Parinmol’s active ingredient (Acetaminophen) is categorized as an analgesic (pain reliever) and antipyretic (fever reducer). It is a non-opioid medicine and is not classified as a Nonsteroidal Anti-inflammatory Drug (NSAID) like ibuprofen or naproxen.

Q: Why is Parinmol sometimes prescribed instead of other common pain relievers?

Official information indicates that this medicine is classified as a non-opioid and often serves as an alternative for individuals who may have contraindications to Nonsteroidal Anti-inflammatory Drugs (NSAIDs). The drug is generally considered gentle on the stomach, which can be a key factor in its selection.

Q: Does Parinmol only relieve pain, or does it also reduce swelling?

Official documents describe Parinmol as working primarily in the central nervous system to relieve pain and fever. Its functional mechanism is significantly constrained in the presence of peripheral inflammation, which means it has limited to no anti-swelling (anti-inflammatory) effect.

Q: How quickly does Parinmol start to work after taking it?

The exact time frame for the beginning of relief is not consistently specified across major drug labels. However, official regulatory information indicates that taking the oral form without food may result in a faster onset of action.

Q: Is it possible to become dependent on Parinmol?

Parinmol is classified as a non-opioid analgesic. It is not considered a controlled substance, and regulatory documents do not list the risk of dependence or addiction associated with its proper use.

Q: Are there common mild side effects that many people experience with Parinmol?

Regulatory safety labels primarily focus on serious but very rare adverse effects, such as acute liver failure. While mild reactions like nausea, vomiting, or minor stomach discomfort have been noted in safety data, they are not consistently highlighted as common or frequent at the usual therapeutic doses.

Q: Does Parinmol interact with common supplements like vitamin C or fish oil?

General regulatory labels typically do not list specific interactions with common supplements like fish oil. However, some safety resources indicate that very high doses (multiple grams daily) of Vitamin C may potentially affect the medicine's plasma levels. For questions about supplements, information should be obtained from a healthcare professional.

Q: Can I take Parinmol if I am already taking blood pressure medication?

Official drug labels do not typically list blood pressure medications as a formal contraindication. However, some regulatory research indicates that regular, high-dose use of the medicine may be associated with a clinically significant increase in blood pressure.

Q: Is it true that Parinmol is sometimes used for conditions not mentioned in the main drug information?

Official labels restrict the use of the drug to the specific conditions for which it was tested and approved, primarily the temporary relief of mild-to-moderate pain and fever. Regulatory studies note limited information for long-term use and that some chronic pain conditions are not supported by evidence.

Q: Are there different warnings about Parinmol for children compared to adults?

Yes, regulatory guidance notes differences, including administration rules based on weight for children. Official warnings describe specific situations involving children with a severe sore throat or other serious symptoms where the use of this medicine is constrained.

Q: Does Parinmol cause drowsiness or affect my ability to drive?

Unlike certain other pain relievers, major regulatory labels for the active ingredient do not typically list drowsiness or somnolence as a common or frequent side effect.

Q: Is there a generic version of Parinmol available?

Yes. The active ingredient, Acetaminophen (Paracetamol), is widely available globally. It is marketed under numerous brand names and is also available in generic or store-brand versions.

Q: Can Parinmol affect birth control pills?

While no significant additional risk is typically reported, some studies suggest that oral contraceptives may slightly decrease or delay the effects of the active ingredient by potentially increasing its clearance.

Q: What should I do if I accidentally take more Parinmol than recommended?

Official regulatory warnings describe the necessity of seeking immediate medical help following an ingestion that exceeds the recommended dose, even if no symptoms are present. This rapid action is critical because potential liver damage may be significantly delayed.

Q: Why do official documents mention consulting a doctor before stopping Parinmol?

The medicine is generally intended for short-term symptomatic relief. Official instructions indicate the conditions under which consulting a healthcare professional is specified, such as if symptoms persist beyond a certain duration (e.g., 10 days for pain or 3 days for fever).

Q: What should I know about taking Parinmol if I have a history of stomach problems?

Parinmol’s active ingredient is generally considered gentle on the stomach. It is often recommended as an alternative for people with certain stomach conditions or sensitivities compared to some other classes of pain relievers.

Q: Is the mechanism of action for Parinmol fully understood?

The precise mechanism of the medicine’s analgesic (pain-relieving) properties is described in official documents as not definitively established, although its actions are thought to primarily occur within the central nervous system.

Q: Why do people sometimes use Parinmol for headaches when it's primarily for muscle pain?

The medicine is officially approved to temporarily relieve mild-to-moderate pain. Official labels list this includes common forms of discomfort such as headache, muscular aches, backache, and other minor aches and pains.

Q: What is the difference between Parinmol and Parinmol-CR (controlled release)?

Controlled-release (CR) formulations are specifically designed to release the active ingredient over a longer period, typically to provide extended pain relief. Regulatory labeling specifies that these forms are not to be altered and are for swallowing whole.

Q: Where can I find the official FDA/EMA patient leaflet for Parinmol?

Official drug information, including the Patient Information Leaflet or Summary of Product Characteristics, can be found directly on the websites of national regulatory agencies, such as the U.S. FDA (DailyMed) or the European Medicines Agency (EMA).

Q: What does the term 'contraindication' mean regarding Parinmol?

A contraindication is a specific condition or situation, such as severe liver disease or a known allergy, where official regulatory guidance establishes that the medicine is typically excluded from use because the risk of harm outweighs any potential benefit.

Q: What are the common signs of an interaction between Parinmol and another drug?

The signs of a drug interaction depend on the specific medicines involved. For example, interaction with a blood thinner may increase the potential for bleeding or bruising. Signs of over-exposure or liver damage, such as yellowing of the skin or eyes (jaundice), are described in safety documents as conditions requiring prompt notification of a healthcare professional.

Q: What are the official recommendations about what to do if a side effect occurs?

Official recommendations describe that if serious symptoms occur, such as a severe skin rash, yellowing of the skin or eyes, or difficulty breathing, the medicine should be discontinued and the patient should seek prompt professional attention.

Q: Does Parinmol pass into breast milk according to regulatory sources?

Yes, the active ingredient passes into breast milk in small amounts. Regulatory status indicates that it is generally considered acceptable for use during lactation when clinically needed, provided it is used at the lowest effective dose for the shortest duration.

Q: What does the official label say about using Parinmol for arthritis pain?

Certain extended-release formulations are explicitly labeled for the temporary relief of minor pain of arthritis. For any continuous pain, official regulatory information indicates the conditions under which consulting a healthcare professional is specified, such as if symptoms persist beyond 10 days.

Q: Why is Parinmol sometimes mentioned in studies related to inflammation?

Studies mention the medicine because its mechanism involves the inhibition of a key regulator mediator in the central nervous system. This effect is significantly constrained in the body’s periphery, which is why it is not primarily classified as an anti-inflammatory drug.

Q: Is it normal to feel a mild stomach upset when first starting Parinmol?

Mild stomach upset is not typically listed as a common or frequent side effect in major regulatory documents. The medicine is often characterized as gentle on the stomach compared to other classes of pain relievers.

How should Parinmol be stored and disposed of?

Storage and Disposal Requirements for Parinmol

Storage and disposal of Parinmol (Acetaminophen) must comply with official labeling to maintain product integrity and ensure safety.

Storage Conditions

Category Requirement (Official Regulatory Labeling)
Temperature Store at controlled room temperature, typically 20 C to 25 C (68 F to 77 F).
Protection Protect the medicine from moisture and excessive heat.
Container Keep in the original container with the closure tightly closed.
Safety Keep strictly out of the sight and reach of children.

Disposal Instructions

The preferred method for discarding unused or expired product is via an authorized drug take-back program. If a take-back program is unavailable, mix the medicine with an undesirable substance (such as dirt) and place the mixture in a sealed container before disposal in household trash. Do not flush the product down the toilet unless explicitly instructed by the label.

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

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