Sorry to necro, and this may have been said before, but I've found taking 20mg-40mg of Esmoperazole (Nexium), which is a stomach PH balancer, (via protein pump inhibition), potentiates all benzo's. The qualitative improvement is around 33%-50% of your dose, in other words taking 10mg is like taking 15mg, and taking 20mg is like taking 30mg. On the higher end of the scale taking 50mg is more like taking up to 75mg.
You can use this trick to either get higher than usual of your standard dose, or lower your standard recreational dose to make your packet last longer. Remember in higher doses (>50mg) Valium is more likely to have you sleeping through it's euphoric goodness. Unless, like me, you are tolerant. I can take over 100mg at once, after the Nexium, (effects of around 130mg-150mg) and still make it through the day. It's a lovely day, spending a lot of time in the clouds, and I sleep well at night.
I would not recommend these dose levels unless you are quite tolerant.
Always remember the golden rule, you can go up, but you can't go down. Some people have had success dosing 10mg per hour every hour until they feel subjectively 'great'. This feeling usually hits around the 30mg-50mg range. (3-5 hours later). Those figures are without the Nexium though.
As a side note nexium also can potentiate both amphetamines and codeine, but use at your own peril. Taking one drug to power up another is not always the safest way, and I would not do this daily, or even weekly for that matter. Once a month though it's probably fine.
Good luck, and safe and happy camping.
