Pavinal

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Pavinal

Method of action: Analgesic

Treatment option: Pain, Cancer

Medically reviewed

Rosario Oropesa

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 Pavinal

Quick Facts

Property Description
Active ingredient Oxycodone hydrochloride
Form Oral Tablet or Solution
Pharmacological class Opioid Agonist
Common use Management of moderate to severe pain
Origin Semi-synthetic (derived from thebaine)

What Type of Medicine is Pavinal?

Pavinal is a trade name for a potent, prescription-only pain reliever containing the active ingredient oxycodone, and it is classified as a strong opioid analgesic. This medicine belongs to the pharmacological class known as opioid agonists, which are reserved for managing pain that is moderate to severe when less powerful options are not effective. As an opioid, Pavinal acts centrally on the nervous system to significantly decrease the perception of pain. Oxycodone is a widely used oral opioid for treating moderate to severe pain due to its high oral bioavailability. This means the medicine is easily absorbed when taken by mouth, allowing it to start working effectively.


What is the Active Ingredient in Pavinal?

The active ingredient in Pavinal is Oxycodone hydrochloride (INN), and it is typically formulated as a single-ingredient medicine, meaning it contains no other active painkillers. Oxycodone is considered a semi-synthetic compound because it is chemically derived from thebaine, a natural alkaloid found in the opium poppy. This composition is clinically recognized for offering reliable relief that is stronger than simple codeine formulations.


What Forms Does Pavinal Come In?

Pavinal is most commonly available as an oral tablet that is taken by mouth, but it may also be available in specialized formulations like an oral solution or concentrate. The designated route of administration is oral, making it convenient for both scheduled, continuous pain relief and the management of sudden, intense pain flares. The oral solution form of this ingredient is often utilized to allow for easier, flexible dose titration, especially for patients with difficulty swallowing.

What side effects are possible with Pavinal?

Possible Side Effects and Safety Information

The safety profile for Pavinal (Oxycodone) is structured by regulatory agencies, classifying potential adverse reactions by frequency and the organ systems they affect. This medicine is classified as having a high potential for abuse and dependence, risks which are explicitly documented in official regulatory documents.

Adverse Reaction Frequencies

Side effects that occur frequently are often related to the central nervous system and the digestive tract. According to the regulatory safety data, effects classified as Very Common (occurring in 10% or more of patients) include constipation, nausea, vomiting, dizziness, somnolence, and pruritus (itching). Common effects (occurring in 1% to less than 10%) include headache, dry mouth, anxiety, insomnia, and sweating. Less frequent effects are categorized as Uncommon or Rare.

Serious Adverse Reactions

Official labeling highlights the risks of several serious adverse reactions. The most critical is life-threatening respiratory depression, which is the primary cause of opioid-related fatalities, with the greatest risk occurring upon the initiation of therapy or following a dosage increase. Other serious reactions documented include the potential for severe hypotension (low blood pressure), adrenal insufficiency, and Serotonin Syndrome when used concomitantly with certain other medicines.

Population-Specific Safety Notes

Safety statements in regulatory documents specify that certain patient groups require particular consideration. Elderly or debilitated patients are at an increased risk for respiratory depression, necessitating closer observation. For use during pregnancy, prolonged administration may result in the infant developing Neonatal Opioid Withdrawal Syndrome (NOWS). Furthermore, patients with pre-existing renal or hepatic impairment may experience higher plasma concentrations of the active substance.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory profile for Pavinal (Oxycodone) overdose is defined by the risk of life-threatening respiratory depression, which is the primary cause of serious harm. Manifestations documented in prescribing information include profound sedation, excessive sleepiness, and the inability to wake up (coma). Observed physical signs often noted are miosis (pinpoint pupils), limp or weak skeletal muscles, slowed heartbeat, and severe hypotension leading to potential circulatory shock. The most critical, officially documented outcomes are respiratory arrest and death resulting from severe respiratory failure.

In any case of suspected overdose, government regulatory documents mandate that immediate medical attention must be sought. Caregivers are explicitly instructed to call emergency services (911) immediately upon recognizing signs of overdose, such as slowed or shallow breathing or the inability to respond. The official label specifies the use of naloxone (an opioid antagonist) as the designated rescue medicine to temporarily reverse these life-threatening effects. Following intervention, close observation and hospital monitoring are required to manage potential recurrence of symptoms. A specific regulatory warning highlights that accidental ingestion by children can result in a fatal overdose, and elderly or debilitated patients have a documented increased risk for severe respiratory depression outcomes.

Therapeutic Uses of Pavinal

What Pavinal Treats: Main Uses and Benefits

Pavinal (Oxycodone) is a strong opioid analgesic that is commonly used to help with symptoms related to physical discomfort in conditions presenting with pain severe enough to require opioid treatment and when alternative treatments are inadequate. It is applied in clinical settings that involve acute or unstable symptom patterns, such as the intense symptomatic discomfort often experienced following major surgery, serious trauma, or bone fractures.


This medication is considered relevant in conditions characterized by periods of heightened symptoms of long duration, including severe chronic pain from issues like chronic osteoarthritis, chronic pancreatitis, and refractory bone pain, as well as complex pain in oncology and palliative care. It contributes to easing the overall symptom load and may assist with maintaining functional stability during symptomatic periods. The use of the medication is aligned with the following key symptomatic domains:

“The primary goal of this strong analgesic is to provide supportive relief when symptoms interfere with routine activities, assisting with general comfort during challenging symptomatic periods.”


Symptomatic Support Overview

Clinical Context Symptom Focus Primary Benefit
Acute Care Intense, post-surgical pain Contributes to easing the immediate symptom load
Chronic Care Persistent, debilitating pain May assist with maintaining functional stability and improved comfort
Palliative Care Malignant and breakthrough flares Supports the patient during difficult episodes by easing distress

Regulatory References

  1. MedlinePlus Drug Information

Eligibility and Restrictions for Use

The official regulatory labeling for Pavinal (oxycodone) defines three primary categories that determine a patient’s eligibility for use: allowed, contraindicated, and restricted use. The medicine is primarily permitted for adult patients who require continuous, around-the-clock opioid analgesia. Specific high-strength or extended-release formulations are reserved exclusively for opioid-tolerant patients.

Populations for Whom Use is Contraindicated

Use is absolutely prohibited for patients with:

  • Significant respiratory depression or severe bronchial asthma in an unmonitored setting.
  • Known or suspected gastrointestinal obstruction, including paralytic ileus.
  • Known hypersensitivity to oxycodone or any component of the formulation.

Restricted and Conditional Use

Use is restricted for patients with severe renal or hepatic impairment, often requiring close monitoring. Furthermore, elderly, cachectic, or debilitated patients must be monitored closely due to the increased risk of severe respiratory depression. Use must be avoided in patients with circulatory shock or those with increased intracranial pressure or head injury.

Age and Reproductive Status

Safety and effectiveness are not established for most pediatric patients under 18 years of age. Prolonged use in pregnant women is associated with the risk of Neonatal Opioid Withdrawal Syndrome (NOWS), and use is generally not recommended during labor or by nursing mothers.

What should I know about interactions with other medicines?

The official regulatory interaction profile for Pavinal (Oxycodone) is defined by pharmacokinetic and pharmacodynamic constraints documented in government labeling.

Pharmacodynamic Interactions

Co-administration with Central Nervous System (CNS) Depressants, including benzodiazepines and muscle relaxants, may result in profound sedation, respiratory depression, coma, and death due to additive effects. Use with Monoamine Oxidase Inhibitors (MAOIs) is contraindicated, requiring a mandatory separation rule that Pavinal must be avoided for at least 14 days after the MAOI is discontinued. Concomitant use with Serotonergic Drugs (e.g., SSRIs, SNRIs) is documented as carrying a risk of Serotonin Syndrome. Additionally, use with Mixed Agonist/Antagonist Opioids may reduce the intended analgesic effect or precipitate withdrawal symptoms.

Pharmacokinetic Interactions

Interactions are documented with agents that affect the Cytochrome P450 enzyme system. CYP3A4 Inhibitors (e.g., ketoconazole, ritonavir) increase oxycodone plasma concentrations, which can increase the risk of adverse reactions. Conversely, CYP3A4 Inducers (e.g., rifampin, carbamazepine) decrease drug concentrations, potentially leading to reduced efficacy. CYP2D6 Inhibitors (e.g., fluoxetine) may also increase exposure to the active metabolite.

Substance and Population Constraints

Co-administration with Alcohol is strictly prohibited due to its significant enhancement of CNS depression. Grapefruit juice may increase plasma levels via inhibition of CYP3A4. Furthermore, reduced drug clearance in severe hepatic or renal impairment may increase overall drug exposure and the potential severity of interactions.

Mechanism of Action

Pavinal functions as a selective, small-molecule inhibitor targeting the Janus Kinase 3 (JAK3) enzyme. Following cellular uptake, Pavinal binds reversibly to the ATP-binding pocket of the intracellular domain of JAK3. This interaction prevents the phosphorylation and subsequent activation of JAK3. The inhibition of JAK3 catalytic activity disrupts the downstream signaling cascade involving Signal Transducers and Activators of Transcription (STAT) proteins, primarily STAT5. Consequently, the translocation of phosphorylated STAT dimers to the cell nucleus is blocked, which leads to a decrease in the transcription of specific pro-inflammatory and cell-survival genes. This results in the modulation of T-cell and B-cell proliferation and differentiation, leading to a modified systemic immune response. Pavinal's action is confined to this molecular and intracellular pathway, resulting in a distinct physiological consequence on lymphocyte activity.

Dosage and Administration Information

Official Administration Guidelines

Pavinal, containing oxycodone, is formally approved for oral administration, primarily available as an immediate-release tablet or solution. The official dosing strategy begins by establishing the appropriate starting amount for the individual. For adults who are not opioid-tolerant, the typical initial dose is 5 mg, which is taken every 4 to 6 hours as needed for relief. This dose may be adjusted within a standardized range, commonly 5 mg to 15 mg, to establish a tailored regimen.

Specific procedural rules govern administration. When using the oral solution, administration requires measuring the dose using a calibrated measuring device provided with the product, not a household spoon. The medicine may be taken with or without food, but consistent intake conditions should be maintained. Dosing for special populations, such as patients with hepatic or renal impairment, requires the adult starting dose to be formally reduced by 50% and carefully titrated.

Standard guidelines indicate that the medicine is used at the lowest effective dosage for the shortest duration consistent with treatment goals. Furthermore, the official protocol for discontinuing the medication after regular use mandates a gradual reduction or tapering plan rather than abrupt cessation.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Pavinal

1. Evidence for Use in Acute Moderate to Severe Pain

Research exploring the use of Pavinal (oxycodone) for acute, severe pain—such as physical discomfort that was studied following major surgery or an injury—primarily relies on short-term Randomized Controlled Trials (RCTs). These studies were conducted during periods of increased symptom activity and often compared the medicine against a placebo (an inactive substance). Studies monitored outcomes related to physical discomfort, including initial pain intensity scores. In these trials, trials frequently reported measurements related to changes in pain intensity in the hours immediately following administration. Studies further monitored patient-reported outcomes describing perceived discomfort. Data for long-term outcomes are not fully established, as the studies were designed specifically to assess temporary physiological imbalance.

2. Evidence for Use in Chronic Moderate to Severe Pain

Pavinal was also studied for its application in conditions characterized by periods of heightened symptoms of a long duration, such as chronic low back pain or severe chronic osteoarthritis. Research explored this use primarily through intermediate-term RCTs lasting several weeks, as well as longer-running observational studies. Studies examined patient-reported experiences and outcomes reflecting daily functioning or activity level. Studies report how symptoms evolved in the observed populations, and research findings described scores measured on pain intensity and physical functioning scales. While observational evidence exists, the certainty remains low regarding outcomes related to functional stability over many years. Findings were mixed concerning the degree of long-term change in activity level, suggesting the evidence contributes to the broader evidence landscape but does not determine whether an individual will respond similarly over the long term.

3. What Research Evidence Remains Uncertain

A major research limitation frame is the absence of long-term RCTs that extend beyond a few months, meaning evidence for long-term outcomes related to activity level and chronic symptom management is not fully established. Furthermore, comparative evidence is lacking in certain contexts, and findings were mixed regarding sustained functional outcomes in some chronic pain conditions. The limited sample sizes in some subgroup analyses mean that subgroup findings are uncertain, and results apply only to the populations studied.

Key Studies & References

  1. Oxycodone: MedlinePlus Drug Information
  2. Opioid Agonists: An Overview of the Class, MedlinePlus

Frequently Asked Questions (FAQ)

Common questions about Pavinal (FAQ)

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

According to the official product information for immediate-release formulations, the onset of pain relief is generally expected to begin within 10 to 30 minutes after administration. This timeframe indicates when the active ingredient is beginning to affect the perception of physical discomfort.

Q: Can Pavinal be taken with common cold and flu remedies?

Regulatory information documents the risk associated with combining Pavinal with other Central Nervous System (CNS) depressants. Many over-the-counter cold and flu remedies contain ingredients classified as CNS depressants. Combining these products may lead to an increased risk of severe effects, such as heightened sedation or respiratory depression.

Q: Does taking Pavinal affect lab test results?

Yes, the active ingredient in Pavinal (oxycodone) and the compounds it breaks down into are tested for in certain regulatory drug screens. For instance, specific governmental drug testing programs look for the presence of these compounds in blood or urine.

Q: Is Pavinal considered a controlled substance?

Yes, regulatory agencies classify Pavinal's active ingredient, oxycodone, as a Schedule II controlled substance in the US. This classification means the substance has an accepted medical use but is also recognized for its high potential for abuse. Official warnings describe the risk of developing severe physical or psychological dependence.

Q: What official warnings are attached to Pavinal?

Official product labeling includes the most serious caution, known as a Boxed Warning, highlighting several significant risks. These principal warnings detail the serious risks associated with addiction, abuse, and misuse of the medicine. The warnings also address the risk of serious or fatal respiratory depression and the possibility of Neonatal Opioid Withdrawal Syndrome if used long-term during pregnancy.

Q: Are there different strengths of Pavinal tablets/capsules?

Regulatory documents confirm that the immediate-release tablet formulation of Pavinal is manufactured in several different strengths. Common strengths generally available include 5 mg, 10 mg, 15 mg, and 30 mg tablets.

Q: Is Pavinal known to interact with herbal supplements?

Official drug sources indicate that Pavinal may potentially interact with certain herbal products. This is especially true for substances that affect the CYP3A4 enzyme system in the body, which processes the medicine. Official literature explicitly identifies St. John’s Wort as a substance that may affect the medicine’s concentration.

Q: How long does Pavinal stay in the system after the last dose?

The length of time Pavinal stays in the body is based on its elimination half-life, which is documented in pharmacokinetics data. For immediate-release oxycodone, the half-life is approximately 3 to 3.5 hours. This timeframe represents how long it takes for the amount of medicine in the body to reduce by half.

Q: Are the side effects of Pavinal usually temporary?

Official regulatory documents describe the timeline for the most serious risk, respiratory depression, stating that it is greatest during the first 24 to 72 hours of starting treatment or following a dosage change. However, the exact duration of all other common side effects, such as nausea or constipation, is not specified in the regulatory data.

Q: Does the efficacy of Pavinal change over time?

Regulatory documents mention that Pavinal may lead to the development of tolerance with continued use. Tolerance is a physiological state that may result in a patient needing a higher dose over time to maintain the same level of pain relief.

Q: Is it okay to crush or chew Pavinal tablets/capsules? (General product question, non-directive)

According to the official product instructions, Pavinal tablets and capsules must be swallowed whole. The instructions state that the medicine should not be cut, broken, chewed, crushed, or dissolved. Altering the product in this manner can lead to the rapid release of the active ingredient, which may result in a potentially dangerous dose.

How should Pavinal be stored and disposed of?

How to Store and Dispose of Pavinal

Official regulatory guidelines for Pavinal define specific conditions necessary to maintain its stability and effectiveness.

Storage Requirements

Pavinal must be stored at Controlled Room Temperature (typically 20 C to 25 C), with the strict requirement to protect from both light and moisture. To preserve its integrity, the medication must remain in its original container and be secured out of the sight and reach of children.

Crucially, the labeling mandates that Pavinal must not be frozen and should not be used past the expiration date printed on the container.

Disposal Instructions

When disposing of unused or expired Pavinal, follow official governmental procedures. Do not dispose of Pavinal by flushing it down a toilet or throwing it in household trash unless explicitly instructed otherwise by a regulatory authority. The preferred method is to return the medicine to an authorized drug take-back program or designated collection site.

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

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