Silly question - what is Vit B complex 100? where can I find them

Hi all

I am a Thal minor and have learnt so much about our troublesome Thal trait in this website. I have got very helpful advice about supplements here, and many of you recommend daily instake of vitamin B complex 100. But I have trouble finding the right vitamin B suppliment from the phamacies So I have to put up this silly queston -  what is vitamin B complex 100? Does it mean one tablet of supplement contains different type of vit B supplements (e.g. B12, B1, B2 etc.) totally 100 mg? I live in Australia so dont know if the terms here are different to most of you in US. Please help! Thank!

Anyone can help? Pls

See this link for an example of a B Complex 100. This is a very common supplement made by many vitamin companies.

http://www.puritan.com/b-complex-vitamins-021/vitamin-b-100-complex-010282