ReVia Online: Naltrexone 50 mg Tablets for Alcohol or Opioid Dependence

What ReVia Is and How It Works

ReVia is the brand name for naltrexone hydrochloride, an oral opioid antagonist used to support recovery from alcohol use disorder and to prevent relapse to opioid dependence after detox. When you order ReVia online from YouDrugstore, you get access to Canadian pricing and careful coordination of sourcing and shipment through our licensed partner pharmacies. YouDrugstore is a licensed Canadian pharmacy headquartered in Manitoba that follows Canadian pharmacy standards, and our customer-service chat is available during posted office hours if you need order help.

Naltrexone blocks mu-opioid receptors. By blocking these receptors, it reduces the rewarding effects of alcohol and fully blocks opioid drugs. For alcohol dependence, this helps reduce cravings and the risk of heavy drinking. For opioid dependence, it prevents the euphoric effect of opioids after a period of opioid-free status. ReVia is supplied as a revia tablet, typically 50 mg, taken by mouth once daily. You may see it described as revia naltrexone, naltrexone HCl ReVia, or in some markets as naltrexona ReVia.

We coordinate sourcing with vetted international partner pharmacies so you receive authentic brand medications and broad selection at affordable prices. ReVia is a prescription medicine and is not for emergency use. Always follow your prescriber’s directions for dose and monitoring.

Dosage and Usage

Dosing for alcohol use disorder is usually 50 mg by mouth once daily. Some prescribers use alternative schedules (for example, 100 mg on certain days) to improve adherence. For opioid relapse prevention, most patients take 50 mg once daily after a confirmed opioid-free period.

• Starting: Your clinician may start with 25 mg for one day to check tolerance, then increase to 50 mg daily.
• Opioid-free window: Be opioid-free for at least 7–10 days before starting to avoid precipitated withdrawal. A naloxone challenge may be used.
• With food: You can take the ReVia pill with or without food. Food may reduce nausea.
• Missed dose: Take it when remembered unless it is close to your next dose. Do not double.
• Alcohol: The medication is for revia for alcohol dependence. Plan to cut back and work toward abstinence while on treatment.

Storage and travel are simple.

• Store at room temperature, away from moisture and heat.
• Keep in the original bottle with the label.
• For travel, pack enough tablets for your trip and carry a copy of your prescription.
• Use a small pill organizer if it helps you remember doses.

ReVia is part of a complete recovery plan. Combine it with counseling, support groups, and regular follow-up. Do not take any opioid-containing medicines, cough syrups, or illicit opioids while on ReVia, as they will not work and could lead to overdose attempts.

Benefits and Savings

Clinical benefits include reduced alcohol cravings, fewer heavy-drinking days, and better treatment retention when paired with counseling. For opioid dependence, naltrexone blocks the effects of opioids and supports abstinence after detox. The once-daily revia medication schedule is straightforward, and a revia 50 mg tablet is easy to store and travel with.

Buying through YouDrugstore can help you manage the cost of ReVia. Many customers save 60–80% compared to typical US prices. You can often choose brand or generic ReVia (naltrexone) to meet your budget and therapy plan. Multi-month supplies can lower the per-month cost, and we provide simple reorder reminders so you do not run out.

Side Effects and Safety

Most people tolerate naltrexone well. Side effects are often mild and improve over time.

• Common: nausea, stomach pain, decreased appetite, headache, dizziness, fatigue, insomnia, anxiety, joint or muscle pain.
• Less common: rash, increased thirst, diarrhea or constipation, irritability.
• Serious: signs of liver problems (dark urine, yellowing eyes/skin, right upper belly pain), severe vomiting, severe allergic reaction, depression or suicidal thoughts.

Do not use ReVia if you are using opioids, are in opioid withdrawal, or require opioid pain treatment soon. ReVia can trigger acute withdrawal in people with recent opioid exposure. Avoid use in acute hepatitis or liver failure, and discuss any liver disease with your prescriber. Your clinician may order liver enzyme tests before and during therapy. Tell your care team about all medicines and supplements you take. Carry medical ID noting that you take naltrexone in case of urgent care. If you need surgery or emergency pain control, alert the team early since opioids will be blocked.

Onset Time

After a dose, opioid receptor blockade begins within 1–2 hours, peaks in about 1–3 hours, and lasts roughly 24 hours for a single 50 mg tablet. For alcohol use disorder, many patients notice reduced cravings within the first week, with further gains over several weeks of consistent use. Take your dose daily as directed for steady benefit.

Compare With Alternatives

Several medicines can support recovery, and the best choice depends on your goals and history:

Acamprosate (Campral) is taken three times daily and helps maintain abstinence in alcohol dependence. It does not block opioids. It is a good option if you have liver disease, since it is cleared by the kidneys.

Disulfiram (Antabuse) makes you feel very unwell if you drink alcohol. It is an aversive approach and does not reduce cravings. People who need a strict deterrent may prefer it, but adherence can be an issue.

Buprenorphine-naloxone (Suboxone) or methadone are agonist therapies for opioid use disorder. They reduce withdrawal and cravings but do not produce a full opioid block. Naltrexone is different because it is a pure antagonist and requires you to be opioid-free before starting. Explore our condition pages on Alcohol Dependence and Opioids Dependence to learn more about treatment options.

Combination Therapy

Medication works best with behavioral support. Pair ReVia with counseling, cognitive behavioral therapy, and mutual-support groups. Many patients also use digital tools, daily reminders, and regular check-ins with their care team. Naltrexone can be combined with most non-opioid medicines. Avoid all opioid-containing products. If you and your prescriber consider combining therapies for alcohol use disorder (for example, with acamprosate), discuss risks, benefits, and monitoring.

Patient Suitability and Cost-Saving Tips

ReVia is suited for adults with alcohol dependence who want to reduce drinking or maintain abstinence, and for individuals who are opioid-free and want an antagonist-based approach to prevent relapse. It is not a fit for people who need opioid pain medicines in the near term. Use caution and close follow-up if you have liver conditions. If you are pregnant, planning pregnancy, or breastfeeding, discuss the risks and alternatives with your clinician.

If you are comparing revia price options, consider generic naltrexone for added savings. Ordering a larger supply can reduce your cost per month. You can set simple reminders so you order ahead and avoid gaps in therapy. To learn about related topics, see our pages on Alcohol Dependence and Opioids Effects. If you speak with your prescriber, you can mention terms like revia prescription, revia medicine, or naltrexone eqv ReVia to ensure the correct product is selected.

Authoritative Sources

Review official prescribing details from the FDA Prescribing Information for ReVia (naltrexone HCl), and the Health Canada Drug Product Database (naltrexone). You can also read the patient-friendly overview on MedlinePlus: Naltrexone.

You can buy ReVia online at YouDrugstore with US shipping. We coordinate sourcing and shipment through licensed partner pharmacies and offer prompt, express, cold-chain shipping. If you have questions about ordering, our friendly team is here to help during posted office hours.

This content does not replace your prescriber’s advice. Always follow your clinician’s instructions and the medication guide that comes with your order. ReVia is available by prescription only, and it is not sold revia over the counter.