Buy a different Creatine. Celltech is pricey and loaded with Sugar.
Also it has 10g per scoop. I've never seen anybody reccomend to dose 10g at once and I think it's the only product out there, (could be wrong), that gives such a dosage.
2 issues with this as I see it.
1. Too much exposure from Creatine to the Kidneys over a few hours. This could lead to a long-term issue, if the exposure were to cause minute amounts of damage, that could not be healed before the next dose, as then you'd get accumulation of damage that one day could manifest into something quite serious.
I can't tell you this will definitely happen, but I can say, almost all instances of Creatine promotion or discussion I've ever seen, don't involve using 10g at once, except when Celltech gets mentioned.
2. The dosage is claimed to be 10g but only half of it might get used, the rest might not, meaning you'll use more and buy it more often, if that is the case.
You'd be perfectly okay with a normal Monohydrate and something like Grape Juice or Dextose added to improve synthesis / uptake, or alternatively spend a little more and get Kre-alkalyn.
It should hopefully come in powdered form, which shoud be better value, as pill form tends to give you Gelatine coating which isn't useful for much, plus fresh air in the gaps, that powder won't have, because it's finely layered, so your product will be just powder not coating, making it a better choice. You'll only get and pay for what you need, not what you don't.