In Norway the oil and gas sector produces 23% of GDP. In the UK the financial services sector produces 10% of GDP. In Canada, a sector like Professional, scientific and technical services produces 5% of GDP.
ibuprofen will exit your system in 12-24 hours, depending on your body. the dosage doesn't effect time in your system, it just effects the potency of the drug during its duration i your body. so it may only take 12 hours to get out of your body, and the 600mg is just telling you how strong it will be in your body.
Long-term treatment with ibuprofen at a dose of 1200 mg/day does not increase the risk of renal impairment in elderly people (Griffin et al, 2000). Ibuprofen is associated with a low risk of renal toxicity in overdose (Jenkinson et al, 1988; Volans and Fitzpatrick, 1999).