What should I know about using Trisprintec (drospirenone/ethinyl estradiol) for birth control?

Trisprintec for Birth Control

Trisprintec (norgestimate/ethinyl estradiol) is an effective combined oral contraceptive that provides approximately 99% pregnancy prevention when taken correctly, and it's also FDA-approved for treating moderate acne in women ≥15 years who desire contraception. 1

What Trisprintec Is

Trisprintec contains norgestimate (a progestin) and ethinyl estradiol (an estrogen) in a triphasic formulation. It works by preventing ovulation, thickening cervical mucus, and altering the endometrial lining 1.

Effectiveness

• Contraceptive efficacy: About 1 out of 100 women may become pregnant during the first year of typical use 1
• Acne treatment: Effective for moderate acne vulgaris through anti-androgenic properties that decrease ovarian androgen production and increase sex hormone-binding globulin 2
• All combined oral contraceptives (COCs) reduce both inflammatory and comedonal acne lesions, with no consistent superiority of one formulation over another 2

How to Take It

Start within the first 5 days of menstrual bleeding to avoid needing backup contraception. If started >5 days after bleeding begins, use backup contraception (condoms) for 7 days 3.

Take one tablet daily at the same time every day 1:

If You Miss Pills:

• One pill (<24 hours late): Take it immediately, continue as usual, no backup needed 3
• One pill (24-48 hours late): Take the most recent missed pill, continue as usual (even if taking 2 pills same day), no backup needed 3
• Two or more pills (≥48 hours): Take the most recent missed pill, use backup contraception for 7 days. If missed in the last week of active pills, skip the hormone-free interval and start a new pack immediately 3

Important Safety Warnings

Absolute Contraindications - DO NOT USE if you:

• Smoke cigarettes and are over 35 years old (significantly increases cardiovascular death risk) 1
• Have history of blood clots (VTE), stroke, or heart attack 1
• Have uncontrolled high blood pressure 1
• Have certain severe migraines (with aura) or any migraines if >35 years 1
• Have liver disease or unexplained vaginal bleeding 1
• Are or may be pregnant 1

Cardiovascular Risks

VTE (blood clot) risk is highest when first starting or restarting after a break 1. The absolute risk remains low but increases compared to non-users:

• Non-users: 1-5 per 10,000 woman-years
• COC users: 3-9 per 10,000 woman-years
• Pregnancy: 5-20 per 10,000 woman-years
• Postpartum (12 weeks): 40-65 per 10,000 woman-years 2

Smoking dramatically increases heart attack and stroke risk, especially in women >35 years 2, 1.

Cancer Considerations

• Breast cancer: Slightly increased risk in current users (RR 1.24), which disappears 10 years after stopping 2
• Cervical cancer: May increase with longer duration of use 2
• Protective effects: Decreased risk of ovarian, endometrial, and colorectal cancers 2, 4

Special Populations

Postpartum/Breastfeeding

• Do not use in first 3 weeks postpartum (VTE risk too high) 3
• Avoid weeks 4-6 if breastfeeding (may reduce milk production) 3
• May decrease breast milk supply; consider alternative methods if breastfeeding 1

Acne Treatment

• Improvement takes time: expect 3+ months before seeing significant results 2
• Can be combined with other acne treatments including topical therapies and oral antibiotics 2
• Only approved for acne in women who also desire contraception 2

Drug Interactions

Use backup contraception when taking enzyme inducers 1:

• Certain anticonvulsants (phenytoin, carbamazepine, topiramate, oxcarbazepine)
• Rifampin or rifabutin
• St. John's wort 5

Important: Regular antibiotics (including tetracyclines) do NOT reduce effectiveness 2. Only rifampin and griseofulvin interact significantly 2.

Common Side Effects

Typical COC side effects include irregular bleeding (especially first few cycles), nausea, breast tenderness, and headache 1. Bleeding irregularities are not harmful and typically improve after the first 1-2 cycles 3.

What It Doesn't Do

Trisprintec does not protect against HIV or other sexually transmitted infections - use condoms for STI protection 1.

Storage and Handling

Store at room temperature (68-77°F) and protect from light. Keep out of reach of children 1.