Fair enough. Computerised prescribing attempts to avoid that situation, by trying to to constrain (or, at least, 'encourage'!) one to prescribe in quantities that correspond with available 'packs'. However, that doesn't always work because, despite 'encouragement' (I don't think there is yet any compulsion) different manufacturers may (although usually don't) produce different 'pack sizes'.Well a prescription I picked up recently was for 84 tablets. The tablets come in blister sheets of 10 from this particular vendor - IIRC different makes have come in different sized sheets. So I got a white box with 8 full sheets, and 4 cut from another sheet.
Although it involves the breaking of one of the tamper-proof seals (if present), the 'correct' (at least, usual) way of dealing with the situation you describe would essentially maintain 'Original Pack Dispensing', by cutting off the required number of blisters in one of the packs (but still leaving the remainder in the original pack). For example, if the most appropriate 'original pack' of your tablets contained '5 sheets' (i.e. 50 tablets), one would dispense one whole 'original pack', and a second pack from which one sheet had been removed and 6 blisters had been cut off one of the other sheets.
Pharmacists don't like cutting blisters off sheets, since (unless they break rules!) it loses them money. They obviously have to buy in products as whole sheets, but only get reimbursed (by NHS) for the number of tablets actually prescribed and dispensed. However, if one cuts a sheet of blisters into two parts, only one of the parts will still bear both the batch number and expiry date, so the other part has to (should be!) destroyed, since it should not be dispensed without that embossed information. That's lost money for the pharmacist - and, if it's an expensive drug, might be an appreciable loss, potentially in excess of the dispensing fee they get (i.e. they make an overall loss out of the exercise).
I'm still not totally clear. Are you simply saying that what was dispensed differed from what had been prescribed, perhaps because the current prescription differed from a previous one?As to the error I was describing, it was almost like having two systems even though they were in the same software package. One shows the prescriptions that have come in, the other shows the pharmacy record of what the patient gets. I.e., information from the GP does not update the pharmacy records. So when the prescribed medication changes, the pharmacist has to see that there's a change and transfer that change from one system to the other - there may be a process that handles this. The "missing link" is that the computer should be able to compare the two and highlight when (as in my mum's case) the prescription doesn't include something the pharmacy record says it is going to dispense.
Kind Regards, John