Naltrexone (Generic for Revia, Vivitrol)

Naltrexone (Generic for Revia, Vivitrol)

What is Naltrexone?

Naltrexone, available as a generic alternative to brand names Revia and Vivitrol, is a prescription medication used to support recovery from alcohol dependence and opioid use disorder. It works by blocking the effects of opioids and reducing cravings for alcohol, helping individuals avoid relapse and maintain sobriety.

Naltrexone is part of a comprehensive treatment plan that may include counseling, behavioral therapy, and support groups. It is available in both oral tablet (Naltrexone HCl) and extended-release injectable (Vivitrol) forms.

At Online Generic Medicine, we offer affordable Naltrexone tablets from certified manufacturers with fast, discreet delivery.

Key Benefits of Naltrexone

• Helps reduce cravings for alcohol and opioids
•  Supports relapse prevention
•  Non-addictive and does not cause euphoria
• Available in oral tablet and injectable (Vivitrol) formats
• May offer additional benefits for weight loss (off-label use)
• A cost-effective alternative to branded Revia and Vivitrol

What is Naltrexone Used For?

Naltrexone is primarily used for:

1. Alcohol Use Disorder (AUD)
Reduces urge to drink and frequency of drinking

Helps prevent relapse in people who have stopped drinking

Can be used after detoxification

2. Opioid Use Disorder (OUD)
Blocks the euphoric effects of opioids (e.g., heroin, morphine, oxycodone)

Supports long-term abstinence

Used after complete detox (must be opioid-free for 7–10 days)

3. Off-label Uses
Weight management (especially when combined with bupropion)

Behavioral addictions (like gambling) – in experimental phases

Dosage and Administration

Available forms:

• Naltrexone HCl Tablets (oral) – usually 50 mg once daily
• Vivitrol (extended-release injection) – 380 mg once a month (administered by a healthcare provider)
• Oral Tablet Dosage (Generic Revia):
  Start with a low dose under supervision, especially after detox
• Usual maintenance dose: 50 mg once daily
• Some regimens use 100 mg every other day or 150 mg twice a week (supervised dosing)

Always follow your doctor’s instructions for correct dosing and duration.

Naltrexone Side Effects

Most people tolerate naltrexone well, but side effects can occur.

Common Side Effects:

• Nausea
• Headache
• Fatigue
• Dizziness
• Anxiety
• Trouble sleeping
• Joint or muscle pain

Serious (Rare) Side Effects:

• Liver damage (high doses) – monitor liver enzymes regularly
• Allergic reaction or skin rash
• Depression or mood changes
• Injection-site reactions (Vivitrol)

Important: Do not use opioids while on Naltrexone. Doing so can cause sudden withdrawal or overdose.

Precautions Before Taking Naltrexone

Before using Naltrexone, inform your doctor if you:

• Have liver disease or hepatitis
• Are currently using opioids, including cough medicine
• Are pregnant or breastfeeding
• Have kidney issues or a history of mental health disorders

You should be opioid-free for 7–10 days before starting treatment to avoid sudden withdrawal symptoms.

Drug Interactions

Avoid combining Naltrexone with:

• Opioid painkillers (e.g., morphine, oxycodone)
• Certain cough medicines containing opioids
• Disulfiram (Antabuse) – increased risk of liver side effects
• Other centrally-acting drugs – may increase sedation or side effects

Inform your doctor about all medications and supplements you take.

FAQs

Q1: Where can I buy Naltrexone (Generic for Revia, Vivitrol) medicine online?
A1: You can buy Naltrexone (Generic for Revia, Vivitrol) medicine online from trusted pharmacies like OnlineGenericMedicine.com, which offer genuine and affordable generic versions with home delivery.
Q2: Is Naltrexone (Generic for Revia, Vivitrol) medication available without a prescription?
A2: Naltrexone (Generic for Revia, Vivitrol) is a prescription medication. You should consult a licensed healthcare provider before using it to ensure safety and correct dosage.
Q3: Is generic Naltrexone (Generic for Revia, Vivitrol) as effective as the brand-name version?
A3: Yes, generic Naltrexone (Generic for Revia, Vivitrol) contains the same active ingredients, strength, and effectiveness as the brand-name drug, but is usually more affordable.
Q4: How should I take Naltrexone (Generic for Revia, Vivitrol) medication?
A4: Always follow your doctor’s instructions for dosage and usage. Do not change the dose or stop the medication without medical advice.
Q5: What are the common side effects of Naltrexone (Generic for Revia, Vivitrol)?
A5: Common side effects may include Headache, Fatigue, Anxiety, Joint or muscle pain. Contact your doctor if any symptoms persist or worsen.
Q6: Can I use Naltrexone (Generic for Revia, Vivitrol) medicine if I'm pregnant or breastfeeding?
A6: Some medications may not be safe during pregnancy or breastfeeding. Consult your doctor before starting Naltrexone (Generic for Revia, Vivitrol) in such cases.
Q7: How do I store Naltrexone (Generic for Revia, Vivitrol) medication?
A7: Store Naltrexone (Generic for Revia, Vivitrol)in a cool, dry place away from direct sunlight and out of reach of children. Always check the packaging for specific storage instructions.
Q8: What should I do if I miss a dose of Naltrexone (Generic for Revia, Vivitrol)?
A8: Take the missed dose as soon as you remember. If it’s almost time for your next dose, skip the missed one. Do not double the dose to catch up.