1. 17α-hydroxyprogesterone; an intermediate formed in the conversion of cholesterol to cortisol, androgens, and estrogens.
2. a synthetic preparation of the caproate ester, used in treatment of dysfunctional uterine bleeding and menstrual cycle abnormalities, and in the diagnosis of endogenous estrogen production; administered orally.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Pregnancy Category: D
Treatment of amenorrhea and functional uterine bleeding associated with hormonal imbalance.Production of secretory endometrium.Diagnostic agent for endogenous estrogen production.
A synthetic analog of progesterone.
Produces secretory changes in the endometrium.
Increases basal temperature.
Produces changes in the vaginal epithelium.
Relaxes uterine smooth muscle.
Stimulates mammary alveolar growth.
Inhibits pituitary function.
Produces withdrawal bleeding (requires estrogen).
Restoration of normal hormonal balance.
Absorption: Systemic absorption follows IM administration.
Metabolism and Excretion: Metabolized by the liver with renal excretion of metabolites.
Half-life: Unknown, but levels are measurable for up to 4 weeks with IM administration.
Time/action profile (hormonal effects)
Contraindicated in: Hypersensitivity; Hypersensitivity to castor oil, sesame oil, or benzyl alcohol; Thromboembolic disorders; Severe liver disease; Breast carcinoma; Undiagnosed vaginal bleeding; Missed abortion; Pregnancy, lactation, or children.
Use Cautiously in: Cardiac disease; Renal dysfunction; Asthma; Seizures; Migraine headaches; Diabetes mellitus.
Adverse Reactions/Side Effects
Central nervous system
- cerebral thrombosis (life-threatening)
- pulmonary embolism (life-threatening)
- cholestatic jaundice
- breakthrough bleeding (most frequent)
- cervical changes
- increased pigmentation
- allergic reactions
- weight changes
Drug-Drug interactionInterferes with the effects of bromocriptine (causes amenorrhea or galactorrhea).
Route/DosageAmenorrhea, Dysfunctional Uterine Bleeding, Metrorrhagia
Intramuscular (Adults) 375 mg.Production of Secretory Endometrium
Intramuscular (Adults) 125–250 mg given on the 10th day of the cycle, repeated q 7 days until suppression is no longer required.
Availability (generic available)
Injection: 125 mg/mL, 250 mg/mL
- BP should be monitored periodically throughout therapy.
- Monitor fluid intake and output ratios and weekly weight. Report significant discrepancies or steady weight gain to physician or other health care professional.
- Monitor pattern and amount of vaginal bleeding (pad count).
- Lab Test Considerations: Monitor hepatic function before and periodically throughout therapy. May cause increased serum glucose and alkaline phosphatase levels. May decrease pregnanediol excretion concentrations.
- May cause increased LDL and decreased HDL and amino acid concentrations.
Potential Nursing DiagnosesSexual dysfunction (Indications)
- Intramuscular: Administer deep IM. Use dry needle and syringe to prevent clouding of solution.
- Advise patient to report signs and symptoms of fluid retention (swelling of ankles and feet, weight gain), thromboembolic disorders (pain, swelling, tenderness in extremities, headache, chest pain, blurred vision), depression, or hepatic dysfunction (yellowed skin or eyes, pruritus, dark urine, light-colored stools) to health care professional.
- Instruct patient to notify health care professional if change in vaginal bleeding pattern or spotting occurs.
- Instruct patient to stop taking medication and notify health care professional if pregnancy is suspected.
- Caution patient to use sunscreen and protective clothing to prevent increased pigmentation.
- Instruct patient to practice good oral hygiene, have teeth cleaned regularly, and notify dentist if tenderness, swelling, or bleeding gums occur.
- Advise patients with diabetes to monitor serum glucose carefully and report any abnormalities to health care professional; may decrease glucose tolerance.
- Advise patient to notify health care professional of medication regimen before treatment or surgery.
- Emphasize the importance of routine follow-up physical exams, including BP; ophthalmic, breast, abdominal, and pelvic examinations; and PAP smears.
- Amenorrhea or Functional Uterine Bleeding: Explain 28-day cyclic dosage schedule. Cyclic therapy begins after 4 days of desquamation from initial dose or 21 days after injection if bleeding did not occur. Explain that several months of estrogen therapy may be required before menstruation occurs.
- Development of normal cyclic menses.
- Control of the spread of advanced metastatic uterine cancer..
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