Revia
Revia

4.45
Revia is an opioid antagonist used to support comprehensive treatment programs for alcohol and opioid dependence.


Ingredient
Availability
In Stock
Delivery
Airmail (14-21 days) | EMS trackable (5-9 days)
Product is shipped in a fully discreet envelope with no content disclosure, including all required documentation inside

Product Sheet

Active Ingredient(s)
Naltrexone
Reference Brand
Revia
Product Origin
Generic Alternative
Reference Manufacturer
Alkermes
Product Form
Tablet
Regulatory Classification
Rx
Primary Category
Addiction Recovery
Product Category
Opioid antagonist
Pharmacological Class
Opiate antagonist
Clinical Indications
Alcohol dependence, Opioid dependence
Manufacturer Description
Revia is an opioid antagonist used to support comprehensive treatment programs for alcohol and opioid dependence.
Mechanism of Action
Naltrexone blocks the body's opioid receptors, preventing the reinforcing rewards of alcohol and opioids to decrease dependency.
Route of Administration
Oral
Onset Time
1 hour
Duration
24+ hours
Contraindications
Acute opioid withdrawal, Severe liver failure
Severe Adverse Events
Depression, Liver enzyme elevation
Common Side Effects
Nausea, Headache
Uncommon Side Effects
Dizziness, Insomnia
Drug Interactions
Opioid-containing medications
Pregnancy Safety Warnings
Consult a doctor for risks vs benefits.
Storage Guidelines
Store at room temperature.
Related Products
Acamprosate, Disulfiram

Revia FAQ

Can Revia be taken on an empty stomach?

Yes, Revia may be taken with or without food. Some patients find that a light snack reduces mild gastrointestinal upset that can occur when the pill is taken on an empty stomach.

How long does it take for Revia to start reducing cravings?

The medication begins to block opioid receptors within a few hours, but noticeable reductions in alcohol or opioid cravings typically emerge after several days of consistent daily dosing.

Is there a risk of overdose if I accidentally take two tablets?

Taking an extra 50 mg dose is unlikely to cause life-threatening toxicity, but it may increase side effects such as nausea or dizziness. If a double dose is taken, monitor for symptoms and contact a healthcare professional for guidance.

Will Revia show up on a drug test for employment?

Standard employment drug screens target opioids, cannabinoids, stimulants, and benzodiazepines. Naltrexone itself is not an opioid and generally does not produce a positive result on routine panels.

Can I drink alcohol while on Revia?

Revia is intended to reduce alcohol cravings, but continued drinking can undermine treatment goals and may elevate liver enzymes. Patients are encouraged to limit or abstain from alcohol while taking the medication.

What should I do if I experience severe nausea?

Mild nausea often resolves with continued therapy. If nausea is persistent, severe, or accompanied by vomiting, contact a healthcare provider; they may suggest taking the tablet with food or adjusting the dose.

Are there any differences between Revia and generic naltrexone tablets?

Both contain the same active ingredient, naltrexone, and function identically. Differences may exist in inactive excipients, appearance, and price, but therapeutic outcomes are comparable when used as prescribed.

Is Revia safe for people with hepatitis C?

Patients with hepatitis C often have compromised liver function. Revia can be used, but liver enzymes should be monitored closely, and a healthcare provider may adjust dosing based on liver test results.

How should I dispose of unused Revia tablets?

Do not flush pills down the toilet. Follow local guidelines-many pharmacies in Hong Kong offer medication take-back programs. Alternatively, mix tablets with an unpalatable substance (e.g., coffee grounds) and place them in a sealed container before discarding in household trash.

What is Naltrexone?

Interacting primarily with the body's opioid receptors, Naltrexone functions as an antagonist to assist in the management of specific dependence conditions. This active compound blocks the effects of certain substances, effectively dampening the reinforcing feedback loops that contribute to long-term consumption habits. It is categorized pharmacologically as an opioid antagonist and is the primary active ingredient found in medications known as Revia.

Beyond its application in habitual dependency, Naltrexone is frequently considered for its role in modifying systemic responses to physiological triggers. By occupying specific receptor sites, it prevents external compounds from binding, which alters the biochemical experience of habitual intake. This mechanism provides a physiological pause, allowing individuals the time needed to develop alternative coping strategies.

Medical practitioners in Hong Kong often identify this component as a fundamental tool within broader recovery frameworks. While it remains a critical asset in clinical settings, it serves as one component of a holistic, multidisciplinary model of care. The substance is typically formulated to be taken on a consistent, routine basis to maintain steady concentration levels within the circulatory system.

Available Versions and Clinical Presentations

Naltrexone is utilized in a variety of formulations under the brand name Revia, which serves as a common standard for oral administration in Hong Kong. Patients may encounter this substance as a classic oral tablet, designed for daily ingestion to manage dependency triggers consistently. In the clinical market, international and local health providers may also offer generic versions of this active compound. These generics contain the same API but may differ in physical appearance, excipients, or packaging standards. Regardless of the label, the concentration of the active ingredient must align with the specified dosage strength printed on the product packaging.

Primary Uses and Therapeutic Intent

The application of Naltrexone is centered on long-term management of substance use disorders. It is frequently applied to assist individuals who have already ceased intake and are now focusing on preventing the resumption of habitual patterns. By addressing the physiological desire for reinforcement, the substance helps minimize the intensity of cravings during the initial and maintenance phases of recovery. Additionally, it is sometimes utilized in varied protocols to assist with the control of alcohol use disorders by diminishing the subjective reward felt during consumption. Its role is primarily supportive, providing a biological anchor for those participating in structured behavioral therapy programs.

Managing Biological Responses

The compound works by binding to mu-opioid receptors located throughout the central nervous system. When the substance occupies these sites, it acts as a gatekeeper, preventing other molecules from activating the reward pathways that create cravings. Because the receptor is blocked, the habitual behaviors that previously resulted in a feeling of reward no longer elicit the same intense physiological response. This process does not create dependency itself; rather, it resets the baseline interaction between the nervous system and external triggers. As the body remains on this regimen, the brain’s neurochemical patterns associated with impulsive consumption begin to stabilize.

Safety Profile

Common Reactions

Initial ingestion may lead to minor discomforts such as fleeting nausea, localized headaches, or mild digestive disturbances. These sensations frequently resolve naturally as the bodily systems adjust to the ongoing presence of the substance over the first few days of treatment.

Serious Reactions

Instances of persistent pain or unusual skin flushing necessitate immediate communication with a health provider. Any signs of emotional distress or unexpected allergic responses should be addressed by seeking urgent clinical attention to ensure personal safety.

Contraindications

Individuals currently using opioid analgesics for pain management must exercise extreme caution, as the substance can trigger immediate withdrawal symptoms. Furthermore, those with acute liver impairment or ongoing active hepatitis require a careful evaluation by a practitioner before the start of any regimen.

Interaction Awareness

Combining this ingredient with alcohol or other central nervous system depressants can lead to unpredictable reactions. Patients should consult their medication's patient information leaflet for a comprehensive list of known interactions with sedatives or other daily medications.

Usage Context and Considerations

Storing these medications involves keeping them in a cool, dry environment away from direct light to maintain chemical stability. The duration of use is generally categorized as a long-term strategy, though the timeline is determined by personal health goals and recovery progress. Consistency is essential for the efficacy of the compound's blocking mechanism. For detailed usage, frequency of administration, and specific safety protocols for your medication, refer to the specific clinical information provided in your medication's package insert.

Glossary

Antagonist
A substance that binds to a cell receptor and prevents other chemicals or hormones from triggering a biological response.
Dependency
A physiological or behavioral state where an individual relies upon a substance to maintain normal functioning or to avoid adverse sensations.
Mu-opioid receptor
A specialized protein site in the nervous system that significantly influences pain perception and reward-seeking behaviors.

Clinical Safety Disclosure

This overview provides general information about Naltrexone and is not intended to serve as medical, diagnostic, or clinical advice. Medications like Revia differ significantly in their individual formulations, strengths, and requirements for patient safety. Any responsibility regarding the clinical application of this substance rests with the user and their healthcare providers. Please review your specific medication labeling carefully and consult with a licensed professional in Hong Kong regarding your personal health requirements.

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