Levonorgestrel
and Ethinyl Estradiol (Triphasil)
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Category:
Description:
Indications:
Contraindications:
-
Pregnancy
-
Undiagnosed
abnormal vaginal bleeding
-
Known
or suspected benign or malignant liver tumors while on oral
contraceptive use
- Breast carcinoma or estrogen-dependent neoplasia
-
Current
or history of thromboembolic disorders, cerebral vascular or
cardiovascular disease.
Precautions:
-
Pregnancy
category X
-
Take
as directed at intervals not exceeding 24 hours.
Effectiveness
is dependent upon strict compliance.
-
OCPs
are 99.9% effective after the 1st month, if taken according to the
prescribed schedule.
-
During
the first month, effectiveness depends on how many OCPs have been
taken, but overall are about 95% effective, comparable to condoms or a
diaphragm.
-
Breakthrough
bleeding (“spotting”) may occur during initiation of therapy.
-
Instructions
for missed doses:
-
One
missed dose: Take as soon as possible or two tablets the next day
and continue
-
Two
missed doses: Take two tablets daily for two days, then continue
normal schedule
-
Three
missed doses: Discontinue therapy and begin new packet 7 days
following last dose
-
May
cause mental depression, fluid retention and depressed folate levels
-
Twenty-eight
day packs contain seven days of inert ingredients to maintain regimen
Adverse
Reactions (Side Effects):
-
Abdominal
cramping, anorexia, nausea, vomiting
-
Acne
(Usually makes it better)
-
Breast
tenderness
-
Edema,
weight gain
-
Unusual
tiredness or weakness
-
Cardiovascular
disorders (hypertension)
-
Thromboembolic
disorders
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Dosage:
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Source:
Operational Medicine 2001, Health
Care in Military Settings, NAVMED P-5139, May 1, 2001, Bureau
of Medicine and Surgery, Department of the Navy, 2300 E Street NW, Washington,
D.C., 20372-5300
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