@ roxie60. The normal recommendation is to swallow it. I dissolved it myself because after learning how things are used more efficiently it seemed like a waste to swallow it and use up more. However I was given a blanket prescription with the understanding that I would monitor the does mysel. I took an amount so small it would be hard to even say how much. If a gp tells you to take a specific amount though, best to take that amount and swallow it. I wouldn't advise people to do what I did, I'm just reporting my experience.
Also, as the prescribing doctor is several hours away, I had a keen interest in making my supply last.