Paracetamol exhibits analgesic action by peripheral blockage of pain impulse generation. It produces antipyresis by inhibiting the hypothalamic heat-regulating centre. Its weak anti-inflammatory activity is related to inhibition of prostaglandin synthesis in the CNS.
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Xpa is indicated for fever, common cold and influenza, headache, toothache, earache, bodyache, myalgia, neuralgia, dysmenorrhoea, sprains, colic pain, back pain, post-operative pain, postpartum pain, inflammatory pain, and post-vaccination pain in children. It is also indicated for rheumatic & osteoarthritic pain and stiffness of joints.
Paracetamol (Acetaminophen) is thought to act primarily in the CNS, increasing the pain threshold by inhibiting both isoforms of cyclooxygenase, COX-1 and COX-2, and COX-3 enzymes involved in prostaglandin (PG) synthesis. Unlike NSAIDs, acetaminophen does not inhibit cyclooxygenase in peripheral tissues and, thus, has no peripheral anti-inflammatory effects. While aspirin acts as an irreversible inhibitor of COX and directly blocks the enzyme's active site, studies have found that acetaminophen indirectly blocks COX, and that this blockade is ineffective in the presence of peroxides. This might explain why acetaminophen is effective in the central nervous system and in endothelial cells but not in platelets and immune cells, which have high levels of peroxides. Studies also report data suggesting that acetaminophen selectively blocks a variant of the COX enzyme that is different from the known variants COX-1 and COX-2. This enzyme is now referred to as COX-3. Its exact mechanism of action is still poorly understood, but future research may provide further insight into how it works. The antipyretic properties of acetaminophen are likely due to direct effects on the heat-regulating centres of the hypothalamus, resulting in peripheral vasodilation, sweating and hence heat loss
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অ্যাপ ডাউনলোডDownload ePharma App বিস্তারিত গাইড ›Detailed App Ordering GuideXpa should not be used by individuals with a known hypersensitivity or allergy to paracetamol or any ingredient in the formulation.
Paracetamol may be used during pregnancy when clinically necessary and at the recommended dose, following advice from a healthcare professional.
Small amounts of paracetamol pass into breast milk, but the amounts are generally not considered clinically significant. Breastfeeding is usually compatible with recommended-dose use. Consult a healthcare professional before use during pregnancy or breastfeeding.
Store in a dry place away from excessive heat and direct light. Keep the medicine out of the reach of children and follow the storage instructions on the packaging.
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