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Panadol Extra
Panadol Extra is a popular over-the-counter (OTC) analgesic and antipyretic medication that combines paracetamol (acetaminophen) and caffeine. It is widely used to relieve mild to moderate pain and reduce fever. This article provides a detailed overview of Panadol Extra, referencing authoritative sources such as the British National Formulary (BNF), Lippincott Textbook of Pharmacology, and Lange Basic & Clinical Pharmacology. We will explore its mechanism of action, uses, dosage, side effects, precautions, drug interactions, and generic names in pharmacy.
The therapeutic effects of Panadol Extra are achieved through the combined actions of its two active ingredients:
- Paracetamol:
- Analgesic Effect: Inhibits prostaglandin synthesis in the central nervous system (CNS), reducing pain perception (BNF).
- Antipyretic Effect: Acts on the hypothalamic heat-regulating center to reduce fever (Lippincott).
- Caffeine:
- Vasoconstrictor Effect: Reduces cerebral blood flow, alleviating headache pain (Lange).
- Adjuvant Effect: Enhances the absorption and efficacy of paracetamol, providing faster and more effective pain relief (Lippincott).
Panadol Extra is indicated for:
- Pain Relief:
- Headaches, migraines, toothaches, and musculoskeletal pain.
- Fever Reduction:
- Mild to moderate fever associated with infections or other conditions.
- Off-Label Uses:
- May be used for tension headaches or menstrual pain.
Dosage varies by age and condition. Always follow the prescribing physician’s instructions.
Adults and Children Over 12 Years:
- Oral: 1–2 tablets every 4–6 hours as needed, not exceeding 8 tablets in 24 hours (BNF).
Children Under 12 Years:
- Not recommended without medical advice.
Administration Tips:
- Take with water, preferably after meals to reduce gastrointestinal irritation.
- Do not exceed the recommended dose to avoid liver damage from paracetamol overdose.
Panadol Extra is generally well-tolerated but may cause:
Common:
- Nausea or stomach discomfort.
- Mild headache or dizziness.
Rare but Serious:
- Liver Toxicity: With excessive paracetamol intake (BNF).
- Allergic Reactions: Rash, itching, or swelling (Lippincott).
- Caffeine-Related Effects: Insomnia, palpitations, or anxiety (Lange).
Before using Panadol Extra, inform your healthcare provider if you have:
- Liver or kidney disease.
- A history of alcohol abuse.
- Sensitivity to caffeine or paracetamol.
- Peptic ulcer disease or gastroesophageal reflux disease (GERD).
Special Populations:
- Pregnancy: Safe in recommended doses (BNF Category: A).
- Breastfeeding: Paracetamol and caffeine pass into breast milk; use with caution.
- Elderly: Increased risk of side effects; use lower doses if necessary.
Panadol Extra interacts with several medications:
- Alcohol:
- Increases the risk of liver damage with paracetamol (BNF).
- Warfarin:
- Paracetamol may enhance anticoagulant effects, increasing bleeding risk (Lippincott).
- CYP450 Inducers (e.g., rifampicin):
- Increase paracetamol metabolism, reducing efficacy and increasing toxicity risk (Lange).
- Stimulants (e.g., amphetamines):
- Additive CNS stimulation with caffeine.
- Antidepressants (e.g., MAOIs):
- May increase caffeine-related side effects.
Generic Names in Pharmacy
- Paracetamol + Caffeine (active ingredients)
Common brand names: Panadol Extra®, Tylenol Ultra®, Excedrin
