Laxatives

[Nowayhozay]

Can anyone recommend a laxative ? I am actually quite nervous about taking one, my work means I am not always close to a lavatory.
I'm hoping that there is something I could take at bedtime and it would be out of my system the following morning

I think senokot is designed to work overnight

Laxido

dulcolax works overnight, i found these better than others i have used which gave me full on diarrhea ( sorry for the tmi)