Which drug class increases metabolic rate?

Which drug class increases metabolic rate?

• A. Thyroid Hormone
• B. Weight Control Agent
• C. Ophthalmic Anti-Infective
• D. Immunosuppressant

Answer: (A)

Metabolic rate is tightly linked to thyroid hormones, which act on nearly all tissues to boost energy expenditure. The active forms, T3 and T4, increase cellular metabolism by upregulating mitochondrial activity and enzymes involved in carbohydrate and fat oxidation, raising oxygen consumption and heat production. They also increase Na+/K+-ATPase activity, contributing to thermogenesis. In short, thyroid hormones directly raise resting energy use across the body, making this drug class the primary driver of increased metabolic rate. Weight control agents may affect body weight but not through a universal, systemic boost in metabolism; they work mainly by appetite suppression or fat absorption changes. Ophthalmic anti-infectives are localized and do not produce meaningful systemic metabolic effects. Immunosuppressants modify immune function rather than energy metabolism.

Metabolic rate is tightly linked to thyroid hormones, which act on nearly all tissues to boost energy expenditure. The active forms, T3 and T4, increase cellular metabolism by upregulating mitochondrial activity and enzymes involved in carbohydrate and fat oxidation, raising oxygen consumption and heat production. They also increase Na+/K+-ATPase activity, contributing to thermogenesis. In short, thyroid hormones directly raise resting energy use across the body, making this drug class the primary driver of increased metabolic rate.

Weight control agents may affect body weight but not through a universal, systemic boost in metabolism; they work mainly by appetite suppression or fat absorption changes. Ophthalmic anti-infectives are localized and do not produce meaningful systemic metabolic effects. Immunosuppressants modify immune function rather than energy metabolism.