section name header

Pronunciation

pro-JESS-te-rone

Classifications

Therapeutic Classification: hormones

Pharmacologic Classification: progestins

Indications

REMS


Crinone, Prometrium, and Oil for Injection

Oil for injection

Prometrium

Crinone and Endometrin

Action

  • Produces:
    • Secretory changes in the endometrium,
    • Increase in basal body temperature,
    • Histologic changes in vaginal epithelium,
    • Relaxation of uterine smooth muscle,
    • Mammary alveolar tissue growth,
    • Pituitary inhibition,
    • Withdrawal bleeding in the presence of estrogen.
Therapeutic effects:
  • Restoration of hormonal balance with control of uterine bleeding.
  • Successful outcome in assisted reproduction.

Pharmacokinetics

Absorption: Micronization oral and vaginal absorption.

Distribution: Unknown.

Protein Binding: 90%.

Metabolism/Excretion: Metabolized by the liver; 50–60% eliminated by kidneys; 10% eliminated in feces.

Half-Life: Several min.

Time/Action Profile

(plasma concentrations)

ROUTEONSETPEAKDURATION
POunknown2–4 hrunknown
Vaginalunknown34.8–55 hrunknown
IMunknown19.6–28 hrunknown





Contraind./Precautions

Contraindicated in:

Use Cautiously in:

Adv. Reactions/Side Effects

CV: DVT, edema, MI, thrombophlebitis

Derm: chloasma, melasma, rash

EENT: retinal thrombosis

Endo: amenorrhea, breakthrough bleeding, breast tenderness, changes in menstrual flow, galactorrhea, spotting

GI: weight, constipation, hepatitis, nausea

GU: cervical erosions, pelvic pain, vaginal discharge

Local: irritation or pain at IM injection site

Metab: weight gain

Neuro: depression, headache, STROKE

Resp: PE

Misc: gingival bleeding, HYPERSENSITIVITY REACTIONS (INCLUDING ANAPHYLAXIS AND ANGIOEDEMA), MALIGNANCY (BREAST, ENDOMETRIAL, OVARIAN)

Interactions

Drug-drug:

Route/Dosage

Secondary Amenorrhea

Abnormal Uterine Bleeding

Prevention of Endometrial Hyperplasia

Assisted Reproductive Technology

Availability

(Generic available)

Assessment

Lab Test Considerations:

Implementation

Patient/Family Teaching

Evaluation/Desired Outcomes

US Brand Names

Crinone, Endometrin, Prometrium