This data includes items that are prescribed in by GPs as well as other licensed prescribers who are employed in general practices (mainly nurses and pharmacists).
newid i ddefnyddio crac a thawelyddion) yn cael eu cofnodi, fel y rhagwelwyd, ymysg yfwyr dibynnol a’r rheini â hanes o ddefnyddio cyffuriau’n anghyfreithlon.