very funny Rap :P

I suspect as it is the NHS docs prescribe the cheapest meds first. If they don't work or they cause reactions then doctors try the better more expensive meds. That is the way they are required to do it per NICE Guidance and PCT policies and to protect their budget for prescriptions, I think.

The way it works (I believe) GP surgeries are given only a certain budget for prescription drugs. Someone like me who has a chronic condition (hypothyroidism) gets the meds for free (free meaning they are paid for under the surgery's budget for prescription meds).