MODEL RELEASED. Consultation. A general practice doctor explains a prescription to a woman patient. The doctor (at right) has the prescription in his hand (at lower centre). The doctor is explaining the prescription to the patient (at left). The doctor has a stethoscope around his neck. On the wall behind the woman's head (top left corner) is a sphygmomanometer used for measuring blood pressure. The computer (at centre) can be used to store the patient's medical records. Prescriptions are instructions to pharmacists to dispense a particular drug in a specific dose. Prescription drugs are available only on the authorisation of a doctor as they may be dangerous or addictive.