Hydraulic fracturing was first used to recover natural gas and oil in 1947. Halliburton was the first company to use it commercially in 1949. Today, fracking is used to stimulate thousands of oil and gas wells each year, worldwide.ydraulic fracturing was first used to recover natural gas and oil in 1947. Halliburton was the first company to use it commercially in 1949. Today, fracking is used to stimulate thousands of oil and gas wells each year, worldwide.
Clarithromycin is primarily used to treat a number of bacterial infections including: pneumonia, C pneumonae, Helicobacter pylori and as an alternative to penicillin in strep throat.
After adjusting for factors such as age, sex, cardiac risk and use of other medication, ongoing use of clarithromycin was associated with a 76 per cent higher risk of death from heart disease compared with use of penicillin V â a similar antibiotic. The study was published in the British Medical Journal today.