Exemptions from co-payments apply to drags administered in the treatment of cancers, psychotic disorders, mental impairment, developmental disorders and some infectious diseases. Listed drags are free or with no co-payment up to the reimbursement limit for some population groups (for example soldiers, military invalids and blood and transplant donors). Also, spending on OTC products as a share of pharmaceutical expenditure is by far the greatest in Poland at above 40% of total pharmaceutical expenditure.