Does Anything Interact with Aurovela Fe 24 1/20 28 Day?

If you take Aurovela Fe 24 1/20 28 Day, knowing what interacts with it isn't optional — it's essential. Some drug interactions can make your birth control less effective (meaning higher pregnancy risk), while others can increase side effects or cause dangerous complications.

This guide covers the major and moderate interactions based on FDA labeling, plus supplements, OTC medications, and foods to watch. Bring this list to your next doctor's appointment.

How Drug Interactions Work with Birth Control

Aurovela Fe 24 1/20 28 Day contains norethindrone acetate and ethinyl estradiol — two hormones that are processed by your liver. Most interactions happen in one of three ways:

1. Another drug speeds up your liver's breakdown of the hormones — This means lower hormone levels in your blood, which can reduce contraceptive effectiveness. This is the most common type of birth control interaction.
2. Another drug slows down hormone breakdown — This leads to higher hormone levels, which can increase side effects like nausea, headaches, or blood clot risk.
3. The birth control affects the other drug — Oral contraceptives can increase or decrease levels of other medications you're taking.

Major Drug Interactions (Avoid or Use Alternatives)

These interactions are serious. Talk to your doctor before combining Aurovela Fe 24 1/20 28 Day with any of the following:

Hepatitis C Medications

• Ombitasvir/Paritaprevir/Ritonavir (Viekira Pak) — Contraindicated. Do not use together. This combination can cause dangerous elevations in liver enzymes (ALT). Your doctor must use alternative contraception or a different hepatitis C regimen.
• Glecaprevir/Pibrentasvir (Mavyret) — Not recommended together due to risk of ALT elevation. Use non-hormonal contraception during hepatitis C treatment.

Rifampin (Rifadin)

Rifampin is one of the most potent inducers of liver enzymes. It can reduce the hormone levels from your birth control by up to 40%, significantly increasing your risk of unintended pregnancy. If you need rifampin for tuberculosis or another infection, use backup contraception (like condoms) and talk to your doctor about alternative birth control methods.

Anticonvulsants (Seizure Medications)

Several anti-seizure medications speed up the liver's processing of contraceptive hormones:

• Phenytoin (Dilantin)
• Carbamazepine (Tegretol)
• Phenobarbital
• Topiramate (Topamax) — at doses of 200 mg/day or higher
• Felbamate (Felbatol)
• Oxcarbazepine (Trileptal)

If you take any of these, your birth control may not work as well. Your neurologist and OB/GYN should coordinate to find a contraception method that's effective alongside your seizure medication.

HIV Protease Inhibitors

HIV medications like ritonavir, nelfinavir, and lopinavir can either increase or decrease hormone levels unpredictably. If you're on HIV treatment, work with your infectious disease specialist and gynecologist to find the right contraceptive approach.

Bosentan (Tracleer)

Used for pulmonary arterial hypertension, bosentan reduces the effectiveness of oral contraceptives. Use an additional or alternative method of contraception.

Moderate Drug Interactions (Use with Caution)

These interactions may require monitoring, dose adjustments, or backup contraception:

Antibiotics

• Ampicillin and Tetracycline — There's long-standing concern that certain antibiotics may reduce birth control effectiveness by disrupting gut bacteria that help absorb the hormones. The actual clinical significance is debated, but many providers recommend backup contraception during antibiotic courses as a precaution.
• Griseofulvin — This antifungal may reduce contraceptive effectiveness. Use backup contraception during treatment and for one month after.

Lamotrigine (Lamictal)

This one goes both ways. Oral contraceptives can reduce lamotrigine levels by up to 50%, which could trigger seizures or worsen bipolar symptoms. When you're on the placebo pills (days 25-28), lamotrigine levels can spike back up. If you take lamotrigine, your doctor may need to adjust your dose and monitor levels carefully.

Medications Whose Levels May Increase

Aurovela Fe 24 1/20 28 Day can increase blood levels of certain drugs, potentially intensifying their effects or side effects:

• Cyclosporine — An immunosuppressant; higher levels increase toxicity risk
• Prednisolone — A corticosteroid; higher levels may increase side effects
• Atorvastatin (Lipitor) — May increase ethinyl estradiol levels when taken together

Medications That May Increase Hormone Levels

• Acetaminophen (Tylenol) — May slightly increase ethinyl estradiol levels. Generally not clinically significant at normal doses.
• Ascorbic Acid (Vitamin C) — High doses may increase ethinyl estradiol levels. Stick to normal supplementation levels.

Thyroid Hormones

Oral contraceptives can increase thyroid-binding globulin, which may require adjustments to your thyroid medication dose. If you take levothyroxine (Synthroid) or similar thyroid medications, your doctor may need to recheck your thyroid levels after starting birth control.

Supplements and OTC Medications to Watch

• St. John's Wort — This is a big one. St. John's Wort is a powerful liver enzyme inducer that can significantly reduce the effectiveness of oral contraceptives. Do not take St. John's Wort with Aurovela Fe 24 1/20 28 Day. If you use it for mood support, talk to your doctor about alternatives.
• Vitamin C (high doses) — Doses above 1,000 mg may increase estrogen levels. This isn't dangerous for most people but could increase estrogen-related side effects.
• Activated charcoal — Can bind to medications in your gut and reduce absorption. Avoid taking within 2 hours of your pill.

Food and Drink Interactions

• Grapefruit juice — May increase estrogen levels by inhibiting the enzyme that breaks down ethinyl estradiol. Occasional consumption is unlikely to cause issues, but daily grapefruit intake could increase estrogen-related side effects.
• St. John's Wort tea or supplements — Listed again because many people don't realize this herbal supplement (sometimes consumed as tea) can make their birth control ineffective.

What to Tell Your Doctor

Before starting Aurovela Fe 24 1/20 28 Day — or when adding any new medication — make sure your doctor knows about:

• All prescription medications you take, including those prescribed by other doctors
• Over-the-counter medications you use regularly (including acetaminophen and ibuprofen)
• Herbal supplements — especially St. John's Wort, which is one of the most significant interactions
• Vitamins — particularly if you take high-dose Vitamin C
• Any changes to your medications — Adding or stopping a medication can affect how your birth control works

Keep a running list on your phone. It takes 30 seconds to update and can prevent real problems.

Final Thoughts

Most people take Aurovela Fe 24 1/20 28 Day without any interaction issues. But the interactions that do exist are serious — some can make your birth control fail, and one (hepatitis C medications) is outright dangerous. The key is communication: tell every provider about every medication you take, including supplements and herbs.

For more about this medication, see What Is Aurovela Fe 24 1/20 28 Day? and our side effects guide. Need to fill your prescription? Medfinder can help you find it in stock.