Drug group Total dispensed items in 2014-15 Estimated number of chargeable items (excl. prescription pre-payment certificates) Estimated savings to patients in 2015-16 Asthma/chronic obstructive pulmonary disease 2,199,196 312,100 £2.6 million Cardiovascular disease 5,359,032 558,900 £4.6 million Mental health (antipsychotic and antidepressant) ...