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Progesterone is used as part of hormone replacement therapy in people who have low progesterone levels, and for other reasons. For purposes of comparison with normal physiological circumstances, luteal phase levels of progesterone are 4 to 30 ng/mL, while follicular phase levels of progesterone are 0.02 to 0.9 ng/mL, menopausal levels are 0.03 to 0.3 ng/mL, and levels of progesterone in men ...
[4] [3] At steady-state with 1 mg/day finasteride, mean peak concentrations of finasteride were 9.2 ng/mL (25 nmol/L). [4] Conversely, following a single 5 mg dose of finasteride, mean peak levels of finasteride were 37 ng/mL (99 nmol/L), and plasma concentrations increased by 47–54% following 2.5 weeks of continued daily administration. [ 3 ]
Progesterone (P4), sold under the brand name Prometrium among others, is a medication and naturally occurring steroid hormone. [20] It is a progestogen and is used in combination with estrogens mainly in hormone therapy for menopausal symptoms and low sex hormone levels in women.
In aged men with prostate cancer, continuous oral CPA therapy resulted in CPA levels of 132 ± 18 ng/mL at 25 mg/day, 246 ± 13 ng/mL at 50 mg/day, and 348 ± 23 ng/mL at 100 mg/day. [71] Similarly, in healthy young women, a single high oral dose of 100 mg CPA resulted in peak CPA levels of 255 ng/mL (612 nmol/L) within 2 to 3 hours.
Cyproterone acetate (CPA), sold alone under the brand name Androcur or with ethinylestradiol under the brand names Diane or Diane-35 among others, is an antiandrogen and progestin medication used in the treatment of androgen-dependent conditions such as acne, excessive body hair growth, early puberty, and prostate cancer, as a component of feminizing hormone therapy for transgender individuals ...
That immediately gets the drug's concentration in the body up to the therapeutically-useful level. First day: 1000 mg; the body clears 100 mg, leaving 900 mg. On the second day, the patient takes 100 mg, bringing the level back to 1000 mg; the body clears 100 mg overnight, still leaving 900 mg, and so forth.
Short term drug side effects are most likely to occur at or near the C max, whereas the therapeutic effect of drug with sustained duration of action usually occurs at concentrations slightly above the C min. [citation needed] The C max is often measured in an effort to show bioequivalence (BE) between a generic and innovator drug product. [4]
In a medicine that is administered periodically, the trough level should be measured just before the administration of the next dose in order to avoid overdosing. [3] A trough level is contrasted with a "peak level" ( C max ), which is the highest level of the medicine in the body, and the "average level", which is the mean level over time.