Ibu (Ibuprofen)

Ibuprofen acts systemically to reduce inflammation and pain, making it useful for several common conditions.

• Mild to moderate pain: provides analgesic relief by inhibiting prostaglandin synthesis that sensitizes nerve endings.
• Fever: lowers elevated body temperature through central inhibition of prostaglandin E2 production in the hypothalamus.
• Inflammatory disorders: diminishes swelling and stiffness in conditions such as osteoarthritis and rheumatoid arthritis by reducing inflammatory mediators.

• Ibuprofen exerts its effect by reversibly inhibiting the cyclooxygenase enzymes COX‑1 and COX‑2. This blockade reduces the conversion of arachidonic acid to prostaglandins, which are mediators of pain, fever, and inflammation. By lowering prostaglandin levels both peripherally at sites of tissue injury and centrally in the hypothalamus, ibuprofen produces analgesic, antipyretic, and anti‑inflammatory actions.

Ibuprofen may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

• Gastrointestinal discomfort: nausea, dyspepsia, or abdominal pain.
• Headache: mild to moderate intensity.
• Dizziness or vertigo.
• Elevated blood pressure.
• Skin rash or mild itching.

Serious or Rare Side Effects

• Gastrointestinal bleeding or ulceration.
• Severe allergic reactions: anaphylaxis, angioedema.
• Hepatotoxicity: elevated liver enzymes or hepatitis.
• Renal impairment: acute kidney injury.
• Cardiovascular events: increased risk of heart attack or stroke.

When using ibuprofen, certain precautions should be observed to minimize risks.

• Renal function: assess before use and avoid in severe renal impairment.
• Gastrointestinal health: consider co‑administration with food or antacids in patients with ulcer history.
• Cardiovascular risk: use cautiously in patients with heart disease or hypertension.
• Hypersensitivity: discontinue if signs of allergic reaction such as rash or swelling appear.
• Pregnancy and lactation: consult a healthcare professional before use.
• Store at ambient temperature: keep in the original packaging, protect from moisture and direct sunlight.

Ibuprofen can interact with several medicines, altering their effectiveness or safety.

Major Interactions (Avoid)

• Anticoagulants (e.g., warfarin): increased bleeding risk.
• High‑dose aspirin: heightened gastrointestinal toxicity.
• Selective serotonin reuptake inhibitors (SSRIs): elevated risk of GI bleeding.
• ACE inhibitors or ARBs: may reduce antihypertensive effect and impair renal function.
• Lithium: ibuprofen can raise lithium serum levels.

Moderate Interactions (Monitor Closely)

• Diuretics: may decrease renal clearance of ibuprofen.
• Methotrexate: reduced elimination leading to toxicity.
• Corticosteroids: additive risk of ulceration.
• Antihypertensives: possible attenuation of blood pressure control.
• Oral hypoglycemics: may enhance hypoglycemic effect.