Clinical pharmacy practice reveals an effective strategy to reduce medication errors and related costs. The present study aimed at confronting hospital perscribers' expectations towards pharmacy services and their jugement on the usefulness of routine pharmacist interventions. A questionnaire was sent to 562 prescribers of the Grenoble Teaching Hospital. They were asked to rank 1. key-points of prescribing process and specify those that could be shared with the pharmacist, 2. usefulness of a series of pharmacist interventions extracted from daily routine, 3. opportunity to perpetuate pharmacy service on ward. Questionnaire response rate was 18%. Concerning the key-points of the prescription process, (compliance to indications and guidelines, drug choice, dosage), responses express the physician's monopoly. Pharmacist's input in terms of drug choice or monitoring seems reduced. Experience in working with a clinical pharmacist or "junior prescriber" status have a positive effect on precribers' perception towards clinical pharmacy. 25% of the respondents cite the pharmacist as an active player in managing different key-points of the prescription. After being confronted with clinical examples, 73% of the prescribers consider pharmacists' interventions as useful.