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Naltrexone HCL Anhydrous Powder

Revia® Powder for Opioid Use Disorder

Alcohol Use Disorder, Opioid Use Disorder

Please note: a valid prescription is required for all prescription medication.

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Price range: $110.99 through $1,221.99

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Naltrexone HCL Anhydrous Powder is a compounding ingredient used to prepare prescription formulations. It supports treatment plans for alcohol or opioid use disorder when made by a licensed pharmacy. YouDrugstore provides US shipping from Canada, with options for those paying without insurance.

What Revia Is and How It Works

YouDrugstore is a licensed Canadian pharmacy in Manitoba. Pharmacists review prescriptions before dispensing.

Revia® contains naltrexone, an opioid receptor antagonist. It blocks the effects of opioids at the mu receptor and can reduce the reinforcing effects of alcohol. When your prescriber authorizes a compounded preparation, the powder is used by a compounding pharmacist to create the prescribed strength and dosage form. This medicine does not treat opioid withdrawal and must not be started until you are opioid-free as directed by your clinician.

Naltrexone does not cause dependence. It may help reduce cravings for some people in recovery programs. Use it as part of a comprehensive plan that can include counseling and support.

Who It’s For

This treatment is indicated to support recovery in adults with alcohol use disorder or opioid dependence who have been opioid-free for a sufficient period as directed on the official label. People actively taking opioids should not start therapy. Those with acute hepatitis, liver failure, or a positive opioid screen should avoid it unless a prescriber decides otherwise.

Naltrexone compounding powder is intended for pharmacist-prepared capsules or liquids based on a valid prescription. Tell your prescriber about liver disease, kidney problems, pregnancy, or breastfeeding. Discuss any history of depression or suicidal thoughts. Do not use if you are hypersensitive to naltrexone or any component.

Dosage and Usage

Follow the directions on your prescription label. Standard labeled regimens for alcohol use disorder typically involve daily dosing set by the prescriber. For opioid dependence, initiation occurs only after an adequate opioid-free interval to prevent precipitated withdrawal. Your compounding pharmacist prepares the exact strength and dosage form your prescriber orders.

Some clinicians may prescribe lower compounded strengths when appropriate; examples include low dose naltrexone 4.5 mg powder as part of a tailored plan. Your healthcare professional decides if this approach is suitable. Take each dose at the same time daily, with or without food, unless directed otherwise.

Do not use this medicine to overcome or “test” opioid effects. High doses of opioids while on naltrexone can lead to overdose and serious harm. Carry medical identification indicating you take an opioid blocker.

Strengths and Forms

This product is a pharmacist-use ingredient supplied as Naltrexone HCL powder USP grade for prescription compounding. It may be used to prepare capsules or an oral liquid when authorized by your prescriber. Exact pack sizes and compounding options can vary by availability and jurisdiction.

Final strengths, dosage forms, and directions depend on your prescription. Your pharmacist will label the finished preparation with clear instructions.

Missed Dose and Timing

If you miss a dose, take it when you remember. If it is close to the time of your next dose, skip the missed dose and resume your schedule. Do not take extra to make up for a missed dose. Consistent daily timing can help maintain steady effect with generic naltrexone formulations or compounded preparations.

Storage and Travel Basics

Store the powder and any finished preparation in a tightly closed container, in a dry place at room temperature, and away from direct light. Keep all medicines out of reach of children and pets. Avoid moisture exposure that can degrade Naltrexone HCL pure powder.

When traveling, carry your prescription label and any required documentation. Keep your medicine in your hand luggage to reduce temperature swings. Do not decant into unmarked containers. If you use a compounded liquid, ask your pharmacist about beyond-use date and any special handling.

Benefits

This antagonist can help block the effects of opioids and support alcohol recovery programs. A compounded preparation allows your prescriber to select a dosage form and strength that fits your plan. Using Naltrexone HCL pharmaceutical powder for prescription compounding can simplify dose adjustments when clinically appropriate.

Daily oral use is generally straightforward. It does not produce opioid euphoria, and it is non-addictive. Consistent use alongside counseling may support long-term recovery goals set with your clinician.

Side Effects and Safety

  • Nausea or stomach upset
  • Headache or dizziness
  • Trouble sleeping or vivid dreams
  • Fatigue or weakness
  • Anxiety or irritability
  • Joint or muscle aches

Serious risks can include liver injury, allergic reactions, depression, and precipitated opioid withdrawal if started too soon after opioid use. Seek urgent care for severe abdominal pain, dark urine, yellowing skin or eyes, fainting, or breathing problems. Contact your prescriber if mood changes or thoughts of self-harm occur. If you need pain control, inform clinicians you use an opioid blocker so they can choose appropriate options.

Drug Interactions and Cautions

Avoid opioid-containing medicines such as certain pain relievers, cough suppressants, or anti-diarrheals while taking this treatment. Combining with hepatotoxic agents may increase the risk of liver injury. Always tell your healthcare professional about all prescription and over-the-counter products, vitamins, or herbal supplements.

You may be more sensitive to lower doses of opioids after stopping therapy. Emergency care teams should be informed that you take an opioid antagonist. Wear a medical alert tag if advised.

What to Expect Over Time

With consistent use and support, many people report fewer opioid effects if they lapse and a reduced urge to drink. Benefits depend on adherence and the broader recovery plan. Your prescriber may periodically reassess your response and adjust the regimen or refer you to additional resources.

Compare With Alternatives

For alcohol use disorder, some patients receive tablets such as Revia®. Others may be prescribed acamprosate, available as Campral. Your prescriber selects therapy based on your history, goals, and tolerability. If a compounded approach is preferred, the pharmacy prepares your prescription accordingly.

Pricing and Access

We list the Naltrexone HCL powder price on the product page. You can review Canada-based options and compare before you order. This item is fulfilled with US needs in mind, and it Ships from Canada to US with clear documentation. If you are paying out of pocket, you can view costs up front and select the quantity your prescriber authorizes.

Looking for a coupon? See current site offers on our Promotions page. A valid prescription is required for dispensing and is verified before release.

Availability and Substitutions

Supply can vary. If a specific pack size is unavailable, your prescriber or pharmacist may suggest a different quantity or a finished dosage form. When the ingredient is unavailable, a healthcare professional may recommend approved alternatives appropriate for your condition.

Patient Suitability and Cost-Saving Tips

Good candidates are adults in recovery who can remain opioid-free for the required interval and can adhere to a daily plan. It may not be suitable for people with active liver disease, those requiring ongoing opioid analgesics, or those with a known allergy to the drug. Your prescriber will assess benefits and risks for your situation.

  • Multi-month fills: Ask about longer supplies if your prescription allows.
  • Refill reminders: Set alerts so you do not run out unexpectedly.
  • Coordinate care: Share medication lists with every clinician you see.
  • Travel prep: Carry labeled containers and a copy of your prescription.
  • Emergency info: Keep a wallet card noting opioid blockade.

Questions to Ask Your Clinician

  • How long should I be opioid-free before starting this therapy?
  • What signs of liver problems should I watch for?
  • If I need surgery, how will pain be managed while on treatment?
  • Am I a candidate for a compounded liquid or capsule?
  • Could a lower compounded strength be appropriate for me?
  • What labs or check-ins do you recommend during treatment?

Authoritative Sources

ResourceLink
FDA DailyMed: Naltrexone HCl TabletsDailyMed
Health Canada Drug Product DatabaseHealth Canada DPD
FDA Prescribing InformationFDA Label

Explore condition guides like Alcohol Use Disorder and Opioid Use Disorder. You can also browse related categories such as Mental Health and Weight Management, and read insights like Alcohol Risks.

Ready to proceed? Add to cart and upload your prescription to complete your order with prompt US delivery from Canada. This page provides general information and is not a substitute for professional medical advice.

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