One Cialis a day? Jeez, what planet is your prescribing doctor on. All ED drugs are very expensive and Cialis is no exception. The doc gave me a private one by mistake once and the pharmacy wanted to charge me 58 quid for eight tabs! They have always been rationed at one a week, although the doctor is allowed to overide this if in his professional opinion it is necessary. Once a Day? Blimey. As far as I know there are only three drugs on the NHS, Viagra, Cialis, and Levitra and they are all forms of Sildenafild. All are taken 'when required' which as far as NICE is concerned is once a week. Sorry, rant over. I dont post much here. lol.