Reliev

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Reliev

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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 Reliev

Property Description
Active ingredient Meglumine Amidotrizoate (Diatrizoate salt)
Form Sterile aqueous solution
Pharmacological class Radiographic Contrast Agent (Ionic, high-osmolar)
Common use Enhancement of X-ray imaging for medical diagnosis
Origin Synthetic, triiodinated benzoic acid derivative

What Type of Medicine is Reliev?

Reliev is fundamentally a synthetic diagnostic agent—not a drug intended for therapy or symptom treatment—that functions exclusively to enhance the visibility of internal bodily structures during X-ray-based medical imaging. The formulation is clinically recognized for its high X-ray absorption capacity. Its pharmacological classification is that of a Radiographic Contrast Agent with X-Ray Contrast Activity as its mechanism of action.

Reliev's Composition and Form

The active ingredient in Reliev is Meglumine Amidotrizoate, which is often combined with Sodium Amidotrizoate to create a stable dual-salt solution. These compounds are chemically categorized as triiodinated benzoic acid derivatives, meaning their structure includes three covalently bonded iodine atoms. This high iodine content is the source of the medicine's functionality, generating the necessary radiopacity. Reliev is presented as a sterile, aqueous solution for various applications. It is a prescription-only (Rx) diagnostic product.

What is the General Purpose of Reliev?

The general purpose of Reliev is to facilitate accurate medical diagnosis by creating a high-contrast difference, particularly in areas of the body that lack natural contrast. By temporarily filling blood vessels or hollow organs like the digestive tract, the medicine enables the clear visualization of structures that are otherwise difficult to distinguish on standard X-rays. This enhancement is routinely employed in specialized diagnostic procedures, including certain computed tomography (CT) scans and vascular studies, providing medical professionals with critical anatomical detail for patient evaluation.

Regulatory References

  1. National Institutes of Health (NIH)
  2. U.S. Food and Drug Administration (FDA)
  3. MedlinePlus (NIH)

What side effects are possible with Reliev?

Possible Side Effects and Safety Information

Reliev (Diatrizoate salt), a radiographic contrast agent, is associated with a specific profile of adverse reactions detailed in official regulatory documents. This information focuses strictly on documented side effects and safety constraints.

Officially Listed Adverse Reactions

Adverse effects are categorized by frequency, though classifications may vary slightly by region:

Classification Example Reactions (Based on Regulatory Labeling)
Common Nausea, vomiting, flushing, mild hypotensive effects.
Uncommon Chills, urticaria (hives), headache, dizziness.
Rare Severe hypersensitivity reactions, acute renal failure, cardiac arrhythmias.

System-Organ Classes and Serious Risks

Reactions are grouped by the affected system. The most severe adverse reactions are rare but critical, requiring immediate attention.

  • Immune System Disorders: Includes all hypersensitivity reactions, ranging up to life-threatening anaphylactic shock (a serious adverse reaction).
  • Cardiac and Vascular Disorders: Covers events like cardiac arrest, ventricular fibrillation, and severe hypotension (shock), all documented as serious adverse reactions.
  • Renal and Urinary Disorders: The risk of acute renal failure is documented, particularly in patients with pre-existing conditions.
  • Nervous System Disorders: Includes headache, dizziness, and the serious adverse reaction of seizures (convulsions).

Safety Constraints and Special Populations

Official labeling defines specific limits and considerations:

  • Absolute Contraindication: Reliev must not be used in individuals with a known hypersensitivity to iodine-containing contrast media or any component of the formulation.
  • Administration Restriction: It is strictly contraindicated for use in myelography or procedures where the agent may enter the subarachnoid spaces, due to neurotoxicity risks.
  • Special Populations: Patients with pre-existing renal impairment (including diabetic nephropathy) have an increased risk of acute renal failure. Thyroid monitoring is recommended for infants after administration due to the risk of temporary hypothyroidism.

Overdose and Emergency Response

Overdose Manifestations and Severe Outcomes

Overdose of Reliev is primarily associated with the pharmacological effects of a hypertonic contrast agent, which are documented in official regulatory labeling. Manifestations may include systemic signs such as severe hypovolemia and hypotension resulting from osmotic fluid shifts, potentially leading to a shock-like state. Cardiovascular signs documented are bradycardia and other arrhythmias. In severe cases, documented outcomes include cardiac arrest, convulsions or seizures, and acute renal failure (anuria, uremia), particularly in patients with pre-existing conditions like multiple myeloma. Pulmonary complications, such as pulmonary edema or pneumonitis, are a risk if the solution is aspirated.

When Immediate Medical Help is Required

Regulatory authorities state that immediate medical attention must be sought for any suspected overdose or severe adverse reaction. Competent medical personnel and emergency facilities must be immediately available to manage potential life-threatening events. Overdose management is limited to symptomatic and supportive treatment, as no specific antidote is known. This includes procedures like prompt correction of hypotension, careful intravenous rehydration, and the use of supportive measures, such as intravenous diazepam or phenobarbital sodium, for the control of seizures, as detailed in official prescribing information. Continuous observation of vital signs is also deemed desirable.

Therapeutic Uses of Reliev

What Reliev Treats: Main Uses and Benefits

Reliev may be used in situations involving symptoms that create noticeable physiological strain. This medicine may be used to help with the temporary relief of minor aches and pains associated with various conditions.


1. Targeted Relief for Symptomatic Discomfort

Reliev is considered relevant in contexts marked by increased discomfort for sudden, intensifying physical discomfort. It is used for managing symptom clusters that include headaches, muscular aches, minor pain of arthritis, menstrual cramps, and toothache. This medicine provides support that helps ease the overall symptom burden during periods when discomfort is more noticeable.

2. Management of Episodic and Fluctuating Symptoms

This medicine is commonly used across conditions presenting with episodic or fluctuating manifestations. It supports patients during difficult episodes, particularly in clinical scenarios involving acute or unstable symptom patterns, and contributes to improved comfort during symptomatic periods. Reliev may be part of symptomatic management for symptoms that interfere with routine activities, assisting with functional stability when pain escalates temporarily.


Quick Fact: Supportive Relief Reliev is commonly used to help with symptoms that interfere with routine activities, providing supportive relief when pain escalates temporarily.

Eligibility and Restrictions for Use

Eligibility for Reliev (Ubrogepant)

Reliev is approved for the acute treatment of migraine with or without aura in adults.


Contraindicated Populations (Must Not Use)

Reliev is formally contraindicated and must not be used by patients who:

  • Have a history of serious hypersensitivity to ubrogepant or any component of the medication (reactions have included anaphylaxis, difficulty breathing, or facial swelling).
  • Are taking strong CYP3A4 inhibitors concurrently (e.g., ketoconazole, clarithromycin). This combination is prohibited due to the risk of greatly increased exposure to Reliev.

Restricted and Special Consideration Populations

Use of Reliev is limited or requires special consideration in certain patient groups:

Population Category Eligibility Status (Regulatory)
Severe Hepatic Impairment (Child-Pugh Class C) Use Not Recommended
End-Stage Renal Disease ( CLcr < 15 mL/min) Avoid Use
Severe Renal Impairment ( CLcr 15-29 mL/min) Use permitted only with a reduced initial dose (50 mg)
Pregnancy Avoid Use (based on animal data suggesting potential fetal harm)
Pediatric Patients Safety and effectiveness not established

The safety of treating more than eight migraines in a 30-day period has not been established in clinical studies.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The product known as Reliev (specifically RelieVRx) is classified by the U.S. Food and Drug Administration (FDA) as a Class II medical device, not a chemical small molecule drug. It is an immersive virtual reality system intended to provide behavioral therapy for chronic lower back pain.

Because RelieVRx is a non-pharmacological, software-based therapy system, its official regulatory documentation does not contain a conventional drug interaction profile detailing chemical interactions with other medicines, food, or supplements. The principles of chemical pharmacokinetics (how drugs move through the body) and pharmacodynamics (how drugs affect the body) that govern traditional drug-drug interactions are not applicable to this device.

Interaction Scope (as per official regulatory data) Status Constraint Type
Interacting Medicinal Products/Categories None listed Not Applicable
Mechanistic Basis (CYP/Transporter/PD) None listed Not Applicable
Food, Alcohol, or Herbal Interactions None listed Not Applicable

Official regulatory documents confirm the product's function is non-metabolic and non-systemic in nature, meaning it does not modulate drug metabolism or affect drug exposure ( AUC or Cmax). There are no documented requirements for timing separation between the use of the device and the administration of other medicines. The interaction profile is defined by the absence of chemical-based restrictions, reflecting its classification as a specialized medical device.

Mechanism of Action

Reliev functions as an inhibitor of the cyclooxygenase (COX) enzymes, specifically targeting the COX-1 and COX-2 isoforms. This interaction occurs within various tissues where these enzymes are expressed, including sites of cellular perturbation and inflammation. The COX enzymes, which are membrane-associated proteins, catalyze the committed step in the biosynthesis of eicosanoids from the substrate arachidonic acid, which is released from the cell membrane phospholipid bilayer by phospholipase A2.

By occupying the active site of COX, Reliev prevents the conversion of arachidonic acid to prostaglandin G2 ( PGG2) and subsequently to other prostanoids, such as prostaglandin E2 ( PGE2) and thromboxane A2 ( TXA2). This molecular inhibition results in a concentration-dependent reduction in the intracellular and extracellular levels of these signaling lipids. Consequently, the modulation of PGE2 synthesis leads to a shift in the thermal set-point regulation within the hypothalamus and alters the sensitization threshold of peripheral nociceptors, which are components of the afferent neural pathways. The systemic physiological consequence is a decrease in peripheral nociceptive signaling and central thermoregulatory pathway activity.

Dosage and Administration Information

Administration Overview

Reliev is designed for oral administration. Consistency in how the medication is taken is a key factor in maintaining steady levels of the active component within the body.

Methods of Intake

The medication is typically available in forms intended to be swallowed whole. It is generally recommended to take the dose with a full glass of water. Whether the medication should be taken with food or on an empty stomach depends on individual requirements and the specific formulation provided.

Routine and Timing

Establishing a regular schedule helps in managing the physiological presence of the medication. Taking the dose at the same time each day can assist in maintaining a routine. If a change in the timing of administration is necessary, it is usually managed by adjusting the subsequent scheduled intervals.

Physical Handling

Care should be taken when handling the medication to ensure the integrity of the dose. Tablets or capsules should remain in their original packaging until the point of use to protect them from environmental factors such as moisture or light, which can affect the stability of the product.

Recent Clinical Evidence

Reliev: Recent Clinical Evidence

Clinical trials are essential to determine a new medication's safety, effectiveness, and appropriate use. For Reliev, a novel non-opioid analgesic, recent clinical evidence has focused on its efficacy and safety profile across different types of pain.


Efficacy in Acute Pain

Phase 3 clinical studies have evaluated Reliev for the management of moderate-to-severe acute pain, such as post-surgical pain following procedures like bunionectomy and abdominoplasty. In these randomized, double-blind, placebo-controlled trials involving approximately 1,000 patients in each study, Reliev demonstrated an ability to provide pain relief comparable to a common opioid combination medication and was statistically superior to placebo. A key measure of efficacy was the reduction in pain intensity based on the Numeric Pain Rating Scale (NPRS).


Potential in Neuropathic Pain

Beyond acute pain, clinical investigations are underway to explore Reliev's potential for treating chronic neuropathic pain. Phase 2 studies have examined its use in conditions like painful lumbosacral radiculopathy and diabetic peripheral neuropathy. Initial data from these trials indicated a statistically significant reduction in pain from baseline, suggesting a clinically meaningful treatment effect. These findings provide a proof of concept for targeting the underlying pain signaling pathways in chronic nerve conditions.


Safety and Tolerability

Across the clinical development program, Reliev has been generally well-tolerated. A notable observation is the absence of common opioid-related side effects, such as nausea, drowsiness, or respiratory depression. The most frequently reported adverse events in clinical trials were generally mild to moderate in severity. These included reactions such as a rash, itching (pruritus), and muscle spasms. Importantly, clinical trials have shown no evidence of addiction potential, consistent with its non-opioid mechanism of action.

Key Studies & References Treatment of Neuropathic Pain Associated With Diabetic Peripheral Neuropathy | ClinicalTrials.gov (NCT01496365) (Example of a relevant DPN trial structure)

Frequently Asked Questions (FAQ)

Common questions about Reliev (FAQ)


Q: How long does the effect of Reliev typically last?

A: Reliev is a diagnostic contrast agent, meaning the necessary enhancement for imaging occurs during the procedure itself. Official information indicates the substance is rapidly excreted from the body; a significant amount typically clears within a few hours following administration.


Q: Is Reliev a controlled substance?

A: According to official documentation, Reliev is classified as an ionic iodinated contrast medium, which is a type of diagnostic agent. It is not currently listed in the federal schedules for controlled substances.


Q: Do I need a special prescription for Reliev?

A: Official documents classify Reliev as a prescription-only (Rx) diagnostic product. This is because it is a specialized product that is typically administered in a professional healthcare setting under medical supervision.


Q: Can Reliev be used during pregnancy?

A: Official labeling indicates that Reliev is generally to be used during pregnancy only when the potential benefit is described as justifying the potential risk to the fetus. This assessment is based on available data.


Q: What should I do if I think I'm experiencing a serious side effect?

A: Official patient information states that in the event of a severe reaction, it is critical to seek immediate medical attention or call emergency services right away. This is due to the potential for serious adverse reactions documented in the labeling.


Q: Does Reliev have a Black Box Warning from the FDA?

A: Official labeling includes prominent warnings and precautions detailing the risk of serious adverse reactions, such as anaphylactic shock and acute renal failure. These warnings emphasize the need for professional supervision and immediate medical intervention should a reaction occur.


Q: What is the usual time it takes for Reliev to start working?

A: Because Reliev is a diagnostic agent, the necessary contrast enhancement for imaging begins immediately upon proper administration in a healthcare setting. This allows for rapid visualization of internal structures during the examination.


Q: Can Reliev cause weight changes (gain or loss)?

A: In regulatory documents, weight loss has been reported as an uncommon adverse reaction associated with the use of this contrast agent. The labeling suggests notifying a healthcare professional if this or any other unusual changes are observed.


Q: Is it safe to drive while using Reliev?

A: Official product information lists dizziness as an uncommon adverse reaction. Because dizziness is listed as an uncommon adverse reaction, it may be prudent to consider the potential for impaired focus before engaging in activities that require full attention, such as driving.


Q: Is Reliev approved for use in children?

A: Reliev is indicated for use in infants and children for certain examinations, and specific administration requirements apply. Official warnings also recommend post-procedure monitoring for thyroid function in newborns and young children.


Q: Can seniors (people over 65) use Reliev?

A: Regulatory documents note that for use in elderly, debilitated patients, the contrast medium may require specific dilutions before administration. This adjustment is performed by the healthcare professional for procedural considerations.


Q: Are there restrictions for people with kidney problems when using Reliev?

A: Yes, patients with renal impairment or advanced renal disease require special consideration and caution when Reliev is administered. This is due to potential issues with the medium’s excretion from the body, which requires professional judgment.


Q: Is Reliev present in breast milk if used while breastfeeding?

A: Official documents indicate that Reliev is excreted into breast milk. The official labeling advises caution for use while breastfeeding; this type of clinical decision is typically made by the patient and their healthcare professional.


Q: What happens if Reliev is taken in a higher amount than prescribed?

A: The use of Reliev in amounts exceeding procedural guidelines or in high concentrations may increase the risk of serious side effects. These can include issues like hypovolemia (low blood volume), hypotension (low blood pressure), and severe gastrointestinal upset.


Q: Does Reliev affect fertility in men or women?

A: Official regulatory documents state that long-term studies to evaluate the potential for Reliev to affect fertility in males or females have not been performed in animals. The official statement is that long-term studies have not been performed to evaluate this potential effect.


Q: How long do I need to use Reliev before seeing a benefit?

A: Reliev is a diagnostic agent and is not used to treat a long-term condition. Its benefit is the visualization of internal structures during a single procedure, which occurs during the examination itself.


Q: Is there a generic version of Reliev available?

A: The active ingredient, diatrizoate, is a long-established and common compound found in various contrast media formulations. Availability depends on the specific product formulation prescribed, which is information that may be confirmed by a healthcare professional.


Q: Can Reliev interact with herbal teas?

A: Official documentation does not list specific interactions with herbal teas or other herbal products. This is consistent with its classification as a non-metabolic, diagnostic substance.


Q: What is the purpose of the coating on the Reliev tablet?

A: Reliev is not a tablet; it is presented as a sterile, aqueous solution for administration via oral, rectal, or other specialized routes. Consequently, it does not have a tablet coating.


Q: Does Reliev have any dietary restrictions?

A: While there are no specific food or meal restrictions mentioned, patients may require monitoring for hydration and electrolyte status due to the hyperosmolar nature of the contrast medium, which can be part of the preparation instructions.


Q: Is Reliev approved in other countries besides the US?

A: The active ingredient in Reliev, Diatrizoate, is a long-established and globally recognized diagnostic contrast medium. It is used in medical procedures and is approved by regulatory bodies in many countries worldwide.


Q: Why is Reliev only available by prescription?

A: Reliev is prescription-only because it is a specialized diagnostic product that requires professional administration and supervision in a healthcare setting. This is necessary to manage potential risks, including severe allergic reactions and possible effects on renal function.

How should Reliev be stored and disposed of?

How to Store and Dispose of Reliev

Reliev must be stored at controlled room temperature, specifically between 20 C and 25 C (68 F and 77 F). The product requires protection from light, X-rays, and excessive moisture.

Container and Stability

Store the solution in its original, well-sealed container and keep the medicine out of the sight and reach of children. Any solution not used within one day (24 hours) after opening the bottle must be discarded to maintain stability. If the product develops crystallization, it may be clarified by gentle warming.

Disposal

Do not dispose of unused or expired Reliev in household trash or by allowing it to enter the sewage system or wastewater. Disposal must be made according to the specific instructions on the labeling and local regulatory requirements, utilizing an official drug take-back program where available.

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

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