Matrifen

Fentanyl, the active ingredient in Matrifen, is a synthetic opioid analgesic presented as a transdermal patch for transdermal use. It provides continuous pain relief for patients with severe chronic cancer pain or severe chronic non‑cancer pain requiring opioid therapy.

GNH USA supplies Matrifen as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, pharmacies and clinics worldwide, ensuring quality and regulatory compliance across global markets.

Matrifen (fentanyl) is indicated for conditions involving severe persistent pain where opioid therapy is required.

- Severe chronic cancer pain: delivers continuous analgesia to manage breakthrough pain in advanced malignancy. - Severe chronic non‑cancer pain: offers long‑acting opioid control when other treatments are insufficient. - End‑of‑life care: maintains comfort and quality of life in palliative settings.

Fentanyl transdermal therapy may be associated with a range of adverse reactions.

Common Side Effects: - Nausea: mild to moderate upset stomach. - Constipation: reduced bowel motility. - Drowsiness: increased sleepiness. - Dizziness: light‑headed sensation. - Sweating: excessive perspiration. - Application site erythema: redness at the patch site.

Serious or Rare Side Effects: - Respiratory depression: slowed or shallow breathing. - Severe hypotension: marked drop in blood pressure. - Adrenal insufficiency: impaired cortisol production. - Severe skin reactions: bullous or necrotic lesions. - Opioid dependence or abuse potential. - Overdose: life‑threatening toxicity.

When prescribing or dispensing Matrifen, clinicians should consider several safety measures.

- Assess opioid tolerance: confirm patient has prior opioid exposure. - Evaluate respiratory function: monitor for existing respiratory compromise. - Monitor for signs of abuse: implement risk‑mitigation strategies. - Adjust dose in hepatic impairment: reduce exposure in liver disease. - Avoid concomitant MAO inhibitors: risk of severe reactions. - Store at room temperature: keep patch in original packaging, protect from moisture and direct heat.

Fentanyl may interact with other medicines, altering its efficacy or safety.

Major Interactions (Avoid): - Other opioids: additive respiratory depression. - MAO inhibitors: risk of hypertensive crisis. - Central nervous system depressants (e.g., benzodiazepines): enhanced sedation. - Strong CYP3A4 inhibitors (e.g., ketoconazole): increased fentanyl levels.

Moderate Interactions (Monitor Closely): - CYP3A4 inducers (e.g., rifampin): reduced analgesic effect. - NSAIDs: potential for gastrointestinal bleeding. - Alcohol: heightened central depression.