Blood creatinine level. The blood creatinine level shows how well your kidneys are working. A high level may mean your kidneys are not working as they should. The amount of creatinine in the blood depends partly on the amount of muscle tissue you have.
Xanax is stronger. 0.5 mg of Xanax equals 10 mg of Valium. But Xanax is mostly effective for about 2 hours, then you may have to repeat the dose (and regular doses may cause addiction). Valium peak-level effects wear off after 1 hour, but it stays in blood longer, and continues working for about 12 hours.
Xanax is the worst, 0.5 mg of Xanax is equal to 10 mg of Valium. And the maximum dose of Xanax is also 10 mg, equal to 200 mg/day of Valium and that is not going to be prescribed. Source(s): I am a medical student at a university in Montreal, MONTRÃ©AL, Qc canada in psychiatry and internal. medicine