Talvosilen forte®

Talvosilen forte® is a prescription-only combination product containing paracetamol and codeine. Combining two active ingredients with different sites of action allows stronger pain relief than either substance alone.

Paracetamol relieves pain and reduces fever through central mechanisms. Codeine is a weak opioid that is partly converted to morphine in the body and dampens pain perception in the brain.

Talvosilen forte® is available as capsules and suppositories and is used for moderate to severe pain when simple analgesics are not sufficient.

The combination uses two different mechanisms of action:

Paracetamol (500 mg):

• Inhibits prostaglandin synthesis in the CNS
• Relieves pain and reduces fever
• No anti-inflammatory effect

Codeine (30 mg):

• Weak opioid agonist (µ-receptor)
• Partly converted to morphine in the body by CYP2D6
• Dampens the transmission of pain signals in the CNS
• Also has a cough-suppressing effect

Synergistic effect: The combination of both active ingredients is stronger than the sum of their individual effects. These supra-additive effects allow better pain control at a lower opioid dose.

Pharmacokinetics:

• Onset of action: 30–60 minutes
• Duration of action: 4–6 hours

Talvosilen forte® is suitable for:

• Moderate to severe pain
• Pain that does not respond to simple analgesics
• Postoperative pain
• Toothache (after procedures)
• Headache (when single-agent analgesics fail)
• Short-term treatment of acute pain conditions

WHO step 2: Talvosilen forte® corresponds to step 2 of the WHO pain ladder (weak opioid + non-opioid).

Not suitable:

• In case of respiratory depression
• During an acute asthma attack
• In case of paralytic ileus
• For children under 12 years of age
• In case of known ultra-rapid CYP2D6 metabolism

Hard capsules:

• Paracetamol 500 mg + codeine phosphate 30 mg per capsule
• Children aged 12 years and older (from 43 kg body weight), adolescents and adults: 1–2 capsules every 6–8 hours
• Maximum daily dose: 8 capsules (4000 mg paracetamol / 240 mg codeine phosphate)

Suppositories (talvosilen forte 1000 mg/60 mg):

• Paracetamol 1000 mg + codeine phosphate hemihydrate 60 mg per suppository
• Children aged 12 years and older (from 43 kg body weight), adolescents and adults: 1 suppository, up to 4 times daily if needed
• Interval between two suppositories at least 6 hours
• Maximum daily dose: 4 suppositories

Recommendation:

• Lowest effective dose
• For as short a time as possible
• No longer than 3 days without consulting a doctor

Capsules:

• Take with a glass of water
• Regardless of meals
• Minimum interval between single doses: 6 hours

Suppositories:

• Insert deep into the anus, preferably after a bowel movement
• To help the suppository slide in more easily, you may warm it in your hand or dip it very briefly in hot water

Important notes:

• Do not combine with other paracetamol-containing medicines (risk of overdose!)
• No alcohol (increased sedation and liver damage)
• Impaired ability to drive
• May cause constipation – make sure you drink enough fluids
• Potential for dependence with prolonged use

Talvosilen forte® must not be used in case of:

• Hypersensitivity to the active ingredients
• Respiratory depression
• Acute asthma attack
• Severe hepatic impairment
• Paralytic ileus
• Children under 12 years of age
• Known ultra-rapid CYP2D6 metabolism
• Concomitant use of MAO inhibitors (or within 14 days)
• Breastfeeding

Caution in:

• Elderly or debilitated patients
• Renal impairment
• Hypothyroidism
• Prostatic hyperplasia
• Chronic obstructive pulmonary disease (COPD)
• Mild hepatic impairment

Common (due to codeine):

• Constipation
• Nausea, vomiting
• Tiredness, drowsiness
• Dizziness

Uncommon:

• Dry mouth
• Headache
• Miosis (constricted pupils)
• Urinary retention

Rare but serious:

• Respiratory depression (dose-dependent)
• Severe liver damage (paracetamol in overdose)
• Seizures

Potential for dependence: With prolonged use, codeine can lead to physical and psychological dependence. Withdrawal symptoms can occur even with short-term use.

CYP2D6 ultra-rapid metabolizers: In these patients, codeine is converted to morphine too quickly – increased risk of serious side effects.

Contraindicated with:

• MAO inhibitors (14-day interval!)

Increased CNS depression with:

• Alcohol
• Benzodiazepines
• Other opioids
• Antihistamines
• Antidepressants
• Neuroleptics

Paracetamol interactions:

• Warfarin (INR may rise)
• Rifampicin, carbamazepine (increased liver toxicity)

Codeine interactions:

• CYP2D6 inhibitors (paroxetine, fluoxetine, quinidine) reduce the effect
• Serotonergic medicines (risk of serotonin syndrome)