Clinical Pharmacology Details


Ibuprofen


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Indications & Dose:

Pain and inflammation in rheumatic disease and other musculoskeletal disorders | Mild to moderate pain including dysmenorrhoea | Postoperative analgesia Migraine | Dental pain



Adult: Initially 300–400 mg 3–4 times a day; increased if necessary up to 600 mg 4 times a day; maintenance 200–400 mg 3 times a day, may be adequate



Adult: 1.6 g once daily, dose to be taken in the early evening, increased if necessary to 2.4 g daily in 2 divided doses, dose to be increased only in severe cases


Mild to moderate pain | Pain and inflammation of soft tissue injuries | Pyrexia with discomfort



Child 3–5 months: 50 mg 3 times a day, maximum daily dose to be given in 3–4 divided doses; maximum 30 mg/kg per day


Child 6–11 months: 50 mg 3–4 times a day, maximum daily dose to be given in 3–4 divided doses; maximum 30 mg/kg per day


Child 1–3 years: 100 mg 3 times a day, maximum daily dose to be given in 3–4 divided doses; maximum 30 mg/kg per day


Child 4–6 years: 150 mg 3 times a day, maximum daily dose to be given in 3–4 divided doses; maximum 30 mg/kg per day


Child 7–9 years: 200 mg 3 times a day, maximum daily dose to be given in 3–4 divided doses; maximum 30 mg/kg per day; maximum 2.4 g per day


Child 10–11 years: 300 mg 3 times a day, maximum daily dose to be given in 3–4 divided doses; maximum 30 mg/kg per day; maximum 2.4 g per day


Child 12–17 years: Initially 300–400 mg 3–4 times a day; increased if necessary up to 600 mg 4 times a day; maintenance 200–400 mg 3 times a day, may be adequate


Pain and inflammation



Child 12–17 years: 1.6 g once daily, dose preferably taken in the early evening, increased to 2.4 g daily in 2 divided doses, dose to be increased only in severe cases


Pain and inflammation in rheumatic disease including juvenile idiopathic arthritis



Child 3 months–17 years: 30–40 mg/kg daily in 3–4 divided doses; maximum 2.4 g per day


Pain and inflammation in systemic juvenile idiopathic arthritis



Child 3 months–17 years: Up to 60 mg/kg daily in 4–6 divided doses; maximum 2.4 g per day


Post-immunisation pyrexia in infants (on doctor’s advice only)



Child 2–3 months: 50 mg for 1 dose, followed by 50 mg after 6 hours if required


Pain relief in musculoskeletal conditions |


Treatment in knee or hand osteoarthritis (adjunct) 

Contraindications:

Hypersensitivity to NSAIDs (including symptoms of asthma, nasal polyps, angioedema), Pregnancy.

Side Effects:

CNS: Anxiety, confusion, depression, dizziness, drowsiness, fatigue, insomnia, tremors
CI: CHF, dysrhythmias, hypertension, palpitations, peripheral edema, tachycardia
EENT: Blurred vision, hearing loss, tinnitus 
GI: Anorexia, cholestatic hepatitis, constipation, cramps, diarrhea, dry mouth, flatulence, GI bleeding, jaundice, nausea, peptic ulcer, vomiting
GU: Azotemia, hematuria, nephrotoxicity, oliguria
HEME: Blood dyscrasias, increased bleeding time
SKIN: Pruritus, purpura, rash, sweating 


 

Cautions:

Precautions:

History of Gl ulceration, bleeding, or perforation; renal dysfunction, hypertension or cardiac conditions aggravated by fluid retention and edema, history of liver dysfunction, history of coagulation 

Interaction:

Drugs
Aminoglycosides: Reduced clearance with elevated aminoglycoside levels and potential for toxicity (especially indomethacin in premature infants; other NSAIDs probably)


Anticoagulants: Excessive by prothrombinemia, decreased platelet aggregation with increased risk of GI bleeding


Antihypertensives ( α -blockers, angiotensin-converting enzyme inhibitors, angiotensin II receptor bockers, ß-blockers, diuretics): Inhibition of antihypertensive and other favorable hemodynamic effects


Corticosteroids: Increased risk of GI ulceration


Cyclosporine: Increased nephrotoxicity risk


Lithium: Decreased clearance of lithium (mediated via prostaglandins) resulting in elevated serum lithium levels and risk of toxicity


Methotrexate: Decreased renal secretion of methotrexate resulting in elevated methotrexate levels and risk of toxicity


Phenylpropanolamine: Possible acute hypertensive reaction


Potassium-sparing diuretics:Additive hyperkalemia potential


Triamterene: Acute renal failure reported with addition of indomethacin; caution with other NSAIDs 

Warnings:

Adverse Effects:

Lactations:

Reduces amniotic fluid volume, constriction of the ductus arteriosus in 3rd trimester; compatible with breast feeding

Special Precautions:

Counselling:

Side Effects Or Adverse Reactions:

Patient And Carer Advice: