Final answer:
Ranitidine should be administered based on the prescribed dosage and the individual's medical condition.
Step-by-step explanation:
Ranitidine, an H2 receptor antagonist, should be administered based on the prescribed dosage and the individual's medical condition. It is commonly used to treat conditions such as ulcers, gastroesophageal reflux disease (GERD), and excessive stomach acid production. The specific time of administration may vary depending on the intended goal of treatment and the individual's specific needs.