where to purchase / buy Vitamin C IV mega dose?

The question is whether the FDA is still clamping down with discriminatory actions against the state compounding pharmacies that pack injectable vitamin C.  The FDA approved McGuff's Ascor injectable C in Oct 2017, the first such FDA approval in the US after an 11 year effort by McGuff.  The FDA had elbowed McGuff, the largest US supplier, out of the injectable C market in 2010 with a warning letter, beginning a seven year terror campaign and supply problem in North America, and many places overseas.

In 2010, pre-FDA shutdown, McGuff's 25 gram injectable C bottles cost under $7 bulk and could be broadly purchased.  Now McGuff's equivalent FDA approved bottle costs $26-$28 and are only sold to doctors or medical supply houses.  Boy, we feel so protected /s.

Knowing how the FDA outlawed necessary medicines in the past and then set up forebearance procedures (wink, wink, special paper work for still arbitrary treatment) after enough outcry, different  scenarios are possible.  I'm not sure where the state compounding pharmacies are now.  There has been a lot of market suppression of compounding pharmacies by menacing FDA letters over the last 10 years.  My suggestion is to be indirect about suppliers here on the boards, speaking in generalities / email - and not publicly wave a red flag to stampede the FDA bull(y)s to increase intolerance.

At  least in decades gone by, the old vitamin C doctors in the US could prepare their own IV vitamin C concentrate from sterile USP powder - doctors legally had great powers to practice medicine under adverse conditions.  In the US, potential liability would be prohibitive for most now in any case.  The old birds I'm thinking of were physician - scientists / researchers in later clinical practice, graduated from the most selective medical schools in the US, so perhaps not for the average dr.