HCG
Also called Pregnyl, Ovidrel, Choriogonadotropin
Intramuscular (into a muscle)Product label
Research reference
Product label
Pregnyl indication-specific schedules
Biological-unit regimens vary by indication; no generic fixed-mg starter
Single reproductive trigger or supervised repeated courses, depending on indication
Pregnyl product label ↗When results may show
- When change was measured
- Hormone response and fertility monitoring determine the plan. A trigger and a repeated endocrine course are not interchangeable.
- When to assess
- Single reproductive trigger or supervised repeated courses, depending on indication
- Conditions and limitations
- Specified reproductive/endocrine uses; age, weight and indication matter. The cited U.S. Pregnyl label is intramuscular only. Other hCG products/routes need their own instructions; USP units cannot be entered as mg.
- When to stop
- Use the exact product's clinical monitoring and stopping instructions. A supply interval is not a stop date; severe or persistent reactions need prompt clinical review.
Sources: Pregnyl product label
Research timing is descriptive, not a promise or personal instruction. A severe or persistent reaction needs prompt clinical review. This is not medical advice.
Modelled level — 2x per week
1× is the peak after a single dose.
- Steady-state peak
- 1.19× single dose
- Time to steady state
- 6.3days
- Administrations
- 2/ week
Read off the modelled curve, not an even-interval formula
About five half-lives
Where these numbers come from
- Pregnyl product labelThe cited U.S. Pregnyl label is intramuscular only. Other hCG products/routes need their own instructions; USP units cannot be entered as mg.