IBUPROFEN PHARMACOLOGY

Ibuprofen pharmacology 

Mechanism of action:

Ibuprofen works by inhibiting the activity of the enzyme cyclooxygenase (COX), which is responsible for the production of prostaglandins. Prostaglandins are hormone-like substances that are involved in the inflammatory response and play a role in pain and fever. By inhibiting the production of prostaglandins, ibuprofen reduces inflammation, pain, and fever.


Pharmacokinetics:

Ibuprofen is well-absorbed after oral administration and reaches peak plasma concentrations within 1-2 hours. It is metabolized in the liver and excreted in the urine. The elimination half-life of ibuprofen is approximately 2-4 hours in adults, but it may be longer in neonates and elderly patients.


Indications:

Ibuprofen is indicated for the relief of mild to moderate pain, including headache, dental pain, menstrual pain, musculoskeletal pain, and postoperative pain. It is also used for the treatment of fever and inflammation associated with conditions such as rheumatoid arthritis, osteoarthritis, and gout.


Adverse effects:

The most common adverse effects of ibuprofen include gastrointestinal upset, such as nausea, dyspepsia, and abdominal pain. It can also cause gastrointestinal bleeding and ulceration, especially in patients with a history of gastrointestinal disorders. Other potential adverse effects include renal dysfunction, allergic reactions, and cardiovascular events.


Contraindications:

Ibuprofen should be avoided in patients with a history of hypersensitivity to the drug or other NSAIDs. It should also be used with caution in patients with a history of peptic ulcer disease, gastrointestinal bleeding, renal impairment, or cardiovascular disease. Pregnant and breastfeeding women should also avoid taking ibuprofen, especially in the third trimester of pregnancy.

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