I would check with the pharmasist rather then the GP, as they are the experts in this field; as indeed as Lou says some tablets should not be crushed as it can changes there absorption rates, and it also changes the prescription as some drugs would be considered 'off licence' if the form they are taken in is changed i.e no longer in their enteric coated capsule but opened an put into something. GP's are not always the best on advice on how to take your med's, where as the pharmacist will be able to assist you best as they will know most the formats available and their interactions when crushed etc. Good luck xx