Which instruction reflects appropriate divided dosing of prednisone for adrenal hypofunction?

Which instruction reflects appropriate divided dosing of prednisone for adrenal hypofunction?

• A. Take two-thirds in the morning and one-third in the late afternoon.
• B. Take all prednisone in the morning.
• C. Take one-third in the morning and two-thirds at night.
• D. Divide evenly between morning and evening.

Answer: (A)

Divided glucocorticoid replacement aims to mimic the body's normal cortisol rhythm, with a higher level in the morning and a gradual decline through the day. For adrenal hypofunction, giving most prednisone in the morning provides robust daytime coverage and supports waking energy, while a smaller dose in the late afternoon helps prevent fatigue later in the day without disturbing sleep. The two-thirds morning and one-third late afternoon split best achieves this balance, aligning with the natural peak in cortisol upon waking and reducing the need for a larger dose late in the day, which can cause insomnia or metabolic issues. Taking all of it in the morning leaves the late afternoon inadequately covered, and placing more dose in the evening can disrupt sleep and night-time physiology. Dividing evenly ignores the circadian pattern and is not as physiologically appropriate.

Divided glucocorticoid replacement aims to mimic the body's normal cortisol rhythm, with a higher level in the morning and a gradual decline through the day. For adrenal hypofunction, giving most prednisone in the morning provides robust daytime coverage and supports waking energy, while a smaller dose in the late afternoon helps prevent fatigue later in the day without disturbing sleep. The two-thirds morning and one-third late afternoon split best achieves this balance, aligning with the natural peak in cortisol upon waking and reducing the need for a larger dose late in the day, which can cause insomnia or metabolic issues. Taking all of it in the morning leaves the late afternoon inadequately covered, and placing more dose in the evening can disrupt sleep and night-time physiology. Dividing evenly ignores the circadian pattern and is not as physiologically appropriate.