| Clinical data | |
|---|---|
| Other names | Oxogesterone phenpropionate; Xinogestone; Oxageston; 20β-Hydroxy-19-norprogesterone phenylpropionate; 20β-Dihydro-19-norprogesterone 20β-(3-phenylpropionate); 20β-Hydroxy-19-norpregn-4-en-3-one 20β-(3-phenylpropionate); (20R)-3-Oxo-19-norpregn-4-en-20-yl 3-phenylpropanoate |
| Routes of administration | intramuscular injection |
| Drug class | Progestogen;Progestogen ester |
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| Chemical and physical data | |
| Formula | C29H38O3 |
| Molar mass | 434.620 g·mol−1 |
| 3D model (JSmol) | |
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Oxogestone phenpropionate (OPP;USANTooltip United States Adopted Name) (former developmental code name or tentative brand nameOxageston), also known asxinogestone, as well as20β-hydroxy-19-norprogesterone 20β-(3-phenylpropionate), is aprogestin related to the19-norprogesterone derivatives which was developed as aninjectablehormonal contraceptive, specifically aprogestogen-only injectable contraceptive, in the 1960s and early 1970s but was never marketed.[1][2][3][4][5][6][7] It was studied at a dose of 50 to 75 mg once a month byintramuscular injection but was associated with a high failure rate with this regimen and was not further developed.[5] OPP is the 20β-(3-phenylpropionate)ester ofoxogestone, which, similarly, was never marketed.[1]
| Compound | Form | Dose for specific uses (mg)[c] | DOA[d] | |||
|---|---|---|---|---|---|---|
| TFD[e] | POICD[f] | CICD[g] | ||||
| Algestone acetophenide | Oil soln. | – | – | 75–150 | 14–32 d | |
| Gestonorone caproate | Oil soln. | 25–50 | – | – | 8–13 d | |
| Hydroxyprogest. acetate[h] | Aq. susp. | 350 | – | – | 9–16 d | |
| Hydroxyprogest. caproate | Oil soln. | 250–500[i] | – | 250–500 | 5–21 d | |
| Medroxyprog. acetate | Aq. susp. | 50–100 | 150 | 25 | 14–50+ d | |
| Megestrol acetate | Aq. susp. | – | – | 25 | >14 d | |
| Norethisterone enanthate | Oil soln. | 100–200 | 200 | 50 | 11–52 d | |
| Progesterone | Oil soln. | 200[i] | – | – | 2–6 d | |
| Aq. soln. | ? | – | – | 1–2 d | ||
| Aq. susp. | 50–200 | – | – | 7–14 d | ||
Notes and sources:
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17α-Hydroxyprogesterone caproate is a depot progestogen which is entirely free of side actions. The dose required to induce secretory changes in primed endometrium is about 250 mg. per menstrual cycle.
The results showed that after injection the concentration of plasma MA increased rapidly. The meantime of peak plasma MA level was 3rd day, there was a linear relationship between log of plasma MA concentration and time (day) after administration in all subjects, elimination phase half-life t1/2β = 14.35 ± 9.1 days.
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