My 90 yo MIL had a fall back in May and due to that and Covid, really doesn't do much any longer, as a result she's started suffering intermittent constipation. She takes lactulose daily which seems to work for a couple of weeks, then stops. The GP prescribed Laxido, but one dose of that isn't enough and two doses gives her raging diarrhoea for days, leaving her feeling rubbish. Any suggestions would be gratefully received, we've tried the senokot, wholewheat bread dried apricots and prunes route to no avail, plus she's a bit fussy about eating anyway! Thanks in advance 