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.
Of course, Valium and other anti-anxiety benzodiazepine drugs like Xanax aren't just incredibly addictiveâyou build tolerance to them very quickly. I began taking half a Valium if I was on deadline, but my body soon craved more. It barely touched the sides.t all had to come to a head at some point and, oh fuck, did it. L. Valium can be even harder to come off than the more 'spectacular' drugs like heroin and cocaine, says Leighton. Withdrawal is entirely dependent on how much you've been taking and for how long, but it is potentially life-threatening.