Давайте рассмотрим каждое утверждение по отдельности и определим, верно оно или неверно.

• A doctor writes a prescription before examining a patient.

  That's wrong. A doctor usually examines a patient first to understand their condition before writing a prescription.

• The prescription tells a pharmacist what medicine the doctor has ordered.

  It’s true. The prescription includes the specific medication that the doctor has determined is necessary for the patient.

• A pharmacist may not work in a hospital.

  That's wrong. Pharmacists can and often do work in hospitals, providing medications and advice to healthcare professionals.

• The label tells how a drug should be taken.

  It’s true. The label on a medication provides important information on dosage and how to take the drug.

• A prescription drug is a drug prepared for all people.

  That's wrong. A prescription drug is specifically prepared for an individual based on their medical needs and doctor's orders.

• We can get patent medicine of all kinds.

  It’s not true. Patent medicines are typically over-the-counter drugs that are not always suitable for all types of ailments.

• You can find vitamins for people of different age here.

  It’s true. Pharmacies often carry vitamins that are formulated for different age groups.

• A person can’t buy washing materials at the chemist's.

  That's wrong. Many chemists (pharmacies) sell a variety of products, including personal care and washing materials.

Таким образом, мы рассмотрели все утверждения и определили их истинность или ложность с соответствующими объяснениями.