Correct option is A
The pharmacological effect is the most useful basis for classifying medications in medical chemistry. This classification refers to the therapeutic effect of drugs on the body. For example, drugs can be classified as analgesics (painkillers), antibiotics (to treat bacterial infections), or antihypertensives (to control blood pressure), depending on their action. This approach is practical for medical professionals as it focuses on the outcome and the conditions the drugs treat, helping in effective therapeutic decision-making.
