Does re-starting A levels rule me out from undergrad Medicine?

If you take 3 years to complete an a level it doesn't count. You need to complete the subjects within 1/2 years.

In other words, if you're retaking the year with the same subjects, unless you have extenuating circumstances, you won't be considered.

I'm not sure how it would work, surely they wouldn't exactly know that you resat the first year if you just put in your AS results. Also, even with resitting a whole year rather than just one subject, surely you should be okay as if you do well over the two year you've technically done it in two years?

Obviously someone tell me if wrong but its just how I assume the system works

That's exactly what I'm thinking - I'm not sure whether the fact that I'm entirely resitting the year doing the new AS/A level course would technically mean I'd be completing my A levels in two years. Glad I'm not the only one confused!

If anything a friend of mine did her A Levels over three years, resitting her first year entirely and that didn't stop her from getting onto a medical degree so I assume you will be fine. Check with universities prior applying I say.

Oh sorry I misunderstood. I still think it would count as 3 years. You should contact medical schools to confirm.

It would still count as taking 3 years to finish your A levels I think. All hope is not lost because you can still do medicine if you want as there certain universities that accept resit students. I think they are:

Exeter
Plymouth
East Anglia
Brighton and Sussex (BMAT)
Keele (only apply with achieved grades if you are a resit student)
Liverpool
Lancaster

You might want to double check the resit policy for each university just in case.

Unless you have extenuating circumstances or have completely changed subjects (not exam board or to new syllabus) then restarting your AS year would count as doing A levels over 3 years and rules out the vast majority of Med Schools. The list above shows you the ones that are happy to accept this situation.