Buy Naltrexone Online

Naltrexone (Naltrexone Hydrochloride) Buyer and Patient Handbook - Singapore

What is Naltrexone?

Naltrexone is an opioid-receptor antagonist used primarily to reduce alcohol cravings and to help maintain abstinence from opioid-dependent substances. It belongs to the antagonist class of medications and is approved by both the FDA and Health Sciences Authority (HSA) of Singapore. The drug is supplied as a 50 mg oral tablet.

Who Should Use Naltrexone?

• Adults (≥18 years) seeking to curb alcohol use disorder.
• Individuals who have completed opioid detoxification and aim to prevent relapse.
• Patients motivated to engage in counseling or behavioral therapy alongside medication.

How Does It Work?

Naltrexone binds tightly to mu-opioid receptors in the brain, blocking the rewarding effects of alcohol and opioids. By preventing these receptors from being activated, the medication reduces the urge to drink or use opioids. It does not produce euphoria or a “high,” and therefore carries a low abuse potential.

Why Choose Naltrexone?

• Proven efficacy: Clinical trials show a significant reduction in heavy-drinking days and opioid relapse rates.
• Convenient dosing: A single 50 mg tablet taken once daily.
• Generic availability: Cost-effective compared with brand-only options, while meeting the same bio-equivalence standards.

Dosage, Administration, Lifestyle and Dietary Recommendations

Recommended Dosage

• Standard dose: 50 mg taken orally once daily, preferably in the morning.

How to Take

• Swallow the tablet whole with a full glass of water.
• Can be taken with or without food, but a consistent routine helps maintain steady blood levels.

Missed Dose

• If you miss a dose, take it as soon as you remember once.
• If it is almost time for the next dose, skip the missed one and resume the regular schedule. Do not double-dose.

Overdose

• Symptoms may include Nausea, Vomiting, dizziness, or rapid heart rate.
• Seek immediate medical attention at the nearest hospital or call Singapore’s emergency number 995.

Special Populations

• Elderly: Start with a lower dose (e.g., 25 mg) under medical supervision.
• Liver impairment: Use with caution; dose adjustment may be required.
• Pregnancy & breastfeeding: Only if the potential benefit outweighs the risk; discuss with a healthcare professional.

Lifestyle & Diet

• Avoid drinking alcohol while on Naltrexone, as the medication is intended to reduce its effects.
• No known food interactions, but grapefruit can affect metabolism of some drugs; inform your clinician if you consume large amounts.
• Maintain regular physical activity and attend counseling sessions for optimal results.

Precautions and Warnings

• Do not start Naltrexone until you are opioid-free for at least 7-10 days to avoid precipitated withdrawal.
• May cause liver enzyme elevation; periodic liver function tests are recommended.
• Monitor for signs of Depression or suicidal thoughts, especially during the initial weeks of therapy.

Drug Interactions

Potential Side Effects

Common Side Effects

• Nausea
• Headache
• Fatigue
• Dizziness

Less Common Side Effects

• Insomnia
• Anxiety
• Joint or Muscle Pain

Serious Side Effects

• Hepatotoxicity (jaundice, dark urine) - seek medical help immediately
• Severe allergic reaction (hives, swelling, breathing difficulty) - call 995

Who Should Avoid This Medication?

• Active opioid users (risk of precipitated withdrawal)
• Severe hepatic impairment (e.g., cirrhosis)
• Known hypersensitivity to Naltrexone or any tablet excipients

Storage Instructions

• Keep tablets in the original container, tightly closed.
• Store at 15 °C-30 °C (room temperature), away from direct sunlight and moisture.
• Keep out of reach of children and pets.

Naltrexone Alternatives

Frequently Asked Questions

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

Most patients notice a reduction in cravings within 1-2 weeks, though the full effect may take up to a month of consistent use.

Can I drink alcohol while taking Naltrexone?

Naltrexone blocks the pleasurable effects of alcohol, but drinking defeats the purpose of therapy and can still cause health harms. Abstinence is recommended.

Will Naltrexone cause drowsiness that affects my work?

Drowsiness is reported by some users, especially during the first few days. If it interferes with daily activities, discuss dose timing with your clinician.

Is it safe to combine Naltrexone with antidepressants?

Generally safe, but both can affect liver enzymes. Regular liver monitoring is advised.

What should I do if I experience severe nausea?

Try taking the tablet with food and a larger glass of water. If nausea persists or is disabling, contact a healthcare professional.

Can I stop Naltrexone abruptly?

Yes, it can be discontinued without tapering. However, stopping may increase the risk of relapse; discuss a plan with your clinician.

Does Naltrexone affect blood sugar or diabetes control?

No direct effect has been documented, but any medication can influence overall health; keep your regular Diabetes checks.

Is Naltrexone covered by Medisave or private insurance in Singapore?

Coverage varies by insurer. Verify with your provider whether the medication is listed under outpatient benefits.

Glossary

• Opioid receptor antagonist: A drug that blocks receptors that usually respond to opioid substances, preventing their effects.
• Precipitated withdrawal: Sudden onset of withdrawal symptoms caused by an antagonist displacing opioids from receptors.
• Bioequivalence: Demonstrates that a generic product delivers the same amount of active ingredient into the bloodstream as the brand version.

Disclaimer

The information provided here is for general educational purposes only and does not replace professional medical advice. Off-label uses are not discussed; any such considerations require a qualified health professional. Our service offers medication information and ordering assistance but does not prescribe or dispense drugs directly. Always consult a qualified healthcare provider before starting, stopping, or changing any medication regimen.