Tips for Prescribing Combined Oral Contraception

Contraception counseling is one of the most common visits you'll have in primary care. For a lot of women, the combined pill is the option they already know and want. The work isn't knowing the pill exists. It's knowing who can safely use it and who can't.

Here's how I think through it, grounded in the CDC U.S. Medical Eligibility Criteria (MEC, 2024) and how this actually plays out in a real visit.

Who can safely use combined oral contraceptives?

The CDC MEC rates every method 1 to 4 for safety in a given patient:

• Category 1: No restriction. Safe to use.
• Category 2: Benefits generally outweigh risks.
• Category 3: Risks usually outweigh benefits.
• Category 4: Unacceptable risk. Contraindicated.

For most healthy, nonsmoking women under 35, COCs are a Category 1. That's the bulk of the people asking you for them.

Who should avoid COCs (absolute contraindications)

COCs are Category 4, do not use, in patients with:

• Age 35 or older and smoking 15 or more cigarettes a day
• Hypertension that's uncontrolled or comes with vascular disease
• History of stroke, DVT, or pulmonary embolism
• Known thrombophilia, like Factor V Leiden
• Current breast cancer
• Migraine with aura
• Severe liver disease or hepatic adenoma

The one people miss most: migraine with aura. Even a young, otherwise healthy woman with aura should not get estrogen-containing contraception, because of stroke risk. Ask the question directly.

Relative contraindications (Category 3)

These are the "weigh it carefully and document your reasoning" cases:

• Controlled hypertension
• Age 35 or older and smoking fewer than 15 cigarettes a day
• Diabetes with vascular complications
• Breastfeeding under 6 weeks postpartum

Counseling tips that make the visit go smoother

• You can usually start today. If you can reasonably rule out pregnancy, the patient can start now. That's the Quick Start approach, and it saves a return visit.
• Same time every day. Adherence is the whole game with the pill. Make that the one thing they remember.
• Missed-pill plan. One pill missed: take it as soon as they remember and keep going. Two or more missed: they need backup contraception.
• Watch the drug interactions. Anticonvulsants, rifampin, and certain HIV meds can lower effectiveness.
• Name the bonus benefits. COCs lower the risk of ovarian and endometrial cancer, help with acne, regulate cycles, and ease dysmenorrhea. Patients want to hear this part.

Clinical pearls

• Screen for migraine with aura and smoking every time. These are the easy-to-miss red flags that change the whole plan.
• If she can't take estrogen, you still have options: progestin-only pills, LARC (IUDs or implants), or non-hormonal methods. Estrogen contraindicated doesn't mean no contraception.
• Check a blood pressure before you start. Non-negotiable.
• Reassess risk factors every year. Age, smoking, and new diagnoses all move people between categories.

Frequently asked questions

Can a patient really start the pill the same day, before her next period?
Yes, if you can reasonably exclude pregnancy. The Quick Start approach lets her begin immediately and use backup for 7 days. It beats sending her home empty-handed to "wait for her period."

What if she has migraines but isn't sure they're with aura?
Ask specifically about visual changes, flashing lights, blind spots, or numbness before the headache. If you can't confirm there's no aura, treat it as aura and skip the estrogen. A progestin-only or non-hormonal method is the safer default.

Is age 35 by itself a contraindication?
No. Age 35 and over only becomes a problem when it's paired with smoking, hypertension, or other vascular risk. A healthy nonsmoker at 38 can still be a reasonable COC candidate.

How often should I recheck eligibility once she's on the pill?
At least yearly. New hypertension, new smoking, new migraine pattern, or a new clot history can all move her into Category 3 or 4.

If estrogen is off the table, your next stop is the non-COC contraception options. And if she's in her 40s with cycle changes on top of contraception questions, the perimenopause 101 guide covers where these two conversations overlap. If you want the eligibility categories and missed-pill rules on a single page you can keep at your desk, the Clinical Desk Reference ($37) is built for exactly that, and the Primary Care Clinical Mastery Program (AANP-accredited) goes deeper if you want the full workup.

References

1. Centers for Disease Control and Prevention (CDC). U.S. Medical Eligibility Criteria for Contraceptive Use, 2024. MEC Summary Chart.
2. UpToDate. Combined estrogen-progestin oral contraceptives: Patient selection, counseling, and use. Accessed September 2025.
3. Curtis KM, Tepper NK, Jatlaoui TC, et al. U.S. Medical Eligibility Criteria for Contraceptive Use, 2016. MMWR Recomm Rep 2016; 65:1.
4. American College of Obstetricians and Gynecologists (ACOG). Practice Bulletin: Combined Hormonal Contraception. Obstet Gynecol. 2019;134(2):e91-e103.
5. The Menopause Society. Hormonal Contraception Use and Age at Discontinuation. 2023.

Education only. Use clinical judgment and your local guidelines.

Written by Allison Sowders, MSN, APRN, FNP-BC, a practicing primary care nurse practitioner and founder of Nurse Practitioner Mentor. Reviewed July 2026.