Paracetamol + Codeína Pharmakern (Paracetamol, Codeine Phosphate Hemihydrate)

Paracetamol + Codeína Pharmakern is used for pain relief and fever reduction across several common clinical situations.

• Moderate acute pain: Provides effective relief when non‑opioid analgesics are insufficient.
• Post‑operative pain: Helps manage pain after surgical procedures.
• Dental pain: Alleviates pain associated with dental extractions or procedures.
• Migraine attacks: Reduces headache intensity when other treatments have failed.
• Musculoskeletal pain: Relieves pain from strains, sprains and low‑back discomfort.

• Paracetamol acts centrally to inhibit cyclo‑oxygenase enzymes, reducing prostaglandin synthesis and lowering the pain‑threshold. Codeine, a weak μ‑opioid receptor agonist, binds to central opioid receptors, enhancing analgesia and providing a synergistic effect with paracetamol to improve pain control.

Paracetamol + Codeína Pharmakern may cause a range of adverse reactions, most of which are dose‑dependent and reversible.

Common Side Effects

• Nausea: Mild to moderate stomach upset.
• Constipation: Reduced bowel movements.
• Drowsiness: Feeling of sleepiness or reduced alertness.
• Dizziness: Light‑headed sensation.
• Dry mouth: Reduced salivation.
• Vomiting: Involuntary expulsion of stomach contents.

Serious or Rare Side Effects

• Respiratory depression: Slowed breathing, especially at higher doses.
• Hepatotoxicity: Liver injury from excessive paracetamol exposure.
• Allergic reactions: Rash, itching, swelling or anaphylaxis.
• Seizures: Rare neurologic events, particularly with overdose.
• Dependence or misuse: Potential for opioid‑related dependence with prolonged use.
• Severe hypotension: Marked drop in blood pressure.

When using Paracetamol + Codeína Pharmakern, consider the following safety measures:

• Assess liver function: Check baseline hepatic status before initiating therapy.
• Limit duration: Use the lowest effective dose for the shortest possible time.
• Avoid alcohol: Concomitant alcohol increases hepatotoxic risk.
• Monitor for dependence: Watch for signs of opioid tolerance or misuse.
• Pregnancy and lactation: Use only if clearly needed and prescribed by a healthcare professional.
• Store below 25°C: Keep in the original packaging, protect from moisture and direct sunlight.

Paracetamol + Codeína Pharmakern can interact with several medicines, altering efficacy or safety.

Major Interactions (Avoid)

• CYP1A2 inhibitors: May increase codeine levels, raising overdose risk.
• CNS depressants: Additive sedation when combined with alcohol, benzodiazepines or antihistamines.
• MAO inhibitors: Heightened risk of serotonin‑serotonin interactions.

Moderate Interactions (Monitor Closely)

• Anticoagulants: May enhance bleeding risk when combined with high‑dose paracetamol.\n- Anticonvulsants: May reduce paracetamol’s analgesic effect.
• CYP2D6 poor‑status: Reduced conversion of codeine to morphine, diminishing analgesia.