Oxycodone/Naloxone Ratiopharm (Naloxone Hydrochloride, Oxycodone Hydrochloride)

Oxycodone/Naloxone is an opioid analgesic combined with an opioid antagonist used for managing pain that follows:

• Chronic non‑cancer pain: Provides sustained relief while reducing opioid‑induced constipation.
• Cancer‑related pain: Offers strong analgesia for severe pain associated with malignancy.
• Post‑operative pain: Controls acute pain after major surgery when strong opioid therapy is required.
• Opioid‑induced bowel dysfunction (OIBD) prevention: Limits the development of constipation due to opioid treatment.
• Long‑term opioid therapy : Helps maintaining pain control with lower risk of gastro‑intestinal side‑effects.

• Oxycodone activates μ‑opioid receptors in the central nervous system, producing analgesia by inhibiting pain signal transmission. Naloxone, when taken orally, has minimal systemic absorption but antagonizes peripheral μ‑receptors in the gastrointestinal tract, counteracting opioid‑induced constipation without affecting central analgesic effects of oxycodone.

Side effects may vary in frequency and severity.

Common Side Effects

• Nausea and vomiting: Frequent gastrointestinal upset.
• Constipation: Reduced bowel motility, mitigated by naloxone.
• Dizziness: Light‑headedness or vertigo.
• Somnolence: Drowsiness or fatigue.
• Dry mouth: Reduced salivation.
• Headache: Mild to moderate cranial pain.

Serious or Rare Side Effects

• Respiratory depression: Marked reduction in breathing rate.
• Severe hypotension: Dangerous drop in blood pressure.
• Allergic reactions: Rash, itching, swelling, or anaphylaxis.
• Seizures: Uncommon but serious neurologic events.
• Hepatic impairment: Liver function abnormalities.
• Adrenal insufficiency: Hormonal imbalance affecting stress response.

When using Oxycodone/Naloxone, several precautions should be considered:

• Assess  : Evaluate the patient for risk of respiratory depression and addiction before treatment.
• Concomitant : Avoid the any other opio ​   ");
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