Subsequent to my query a few days ago asking whether (in the UK) ibrutinib would in future only be available in tablet form, the answer from Jannsen is YES. They were understandably reluctant to discuss their reasons with me but confirmed that the tablet should be taken whole, not be crushed or cut up.
No doubt I will learn to cope, but for those who have difficulty swallowing, this may be a problem.
Thanks everyone who has shown interest in my original question.
Roger