Vit C and B drip(Pabernex IV)

Anyone else had Pabernex IV? The Vitamin C and B vitamins drip..I've had it whilst in hospital but have been offered it today by my gastro to take on a monthly basis(not sure for how long). I was curious if its common and if anyone else(especially in the UK) has it routinely to target their defficiencies if oral tablets are not tolerated. I can't find any posts on it, only about oral supplementation.