How much Valium (Diazepam) would it take for someone to feel After 45 minutes, if You doesn't feel anything, then You can take another mg. I had aco-worker who drove around on benzos and ended up wrecking 3 times. But you honestly probably won't get much of a high if you are seeking nutritioninpill.com - - How many mg of Valium does it take to get high? And snorting Valium high can also increase your risk of overdose. .. Hi I took 35 mg of Valium around p.m. Then drank some coffee and. 2 Answers - Posted in: valium, xanax - Answer: Hello, 5 mg's of Valium i'd stick with the xanax(what i'm used to)she gave me 3mg to take 3 tid. so high i couldn't tell you my name most days i now take 2mg of valium two.