Sprintec 28 Day Side Effects: What to Expect and When to Call Your Doctor

Sprintec 28 Day Side Effects: What's Normal and What's Not

Starting a new birth control pill can come with some adjustment. Sprintec 28 Day (norgestimate and ethinyl estradiol) is a widely used combination oral contraceptive, and like all medications, it has potential side effects. Most are mild and go away within the first few months, but some require immediate medical attention. Here's what to expect.

What Is Sprintec 28 Day?

Sprintec 28 Day is a monophasic combination oral contraceptive made by Teva Pharmaceuticals. Each pack contains 21 active blue tablets with norgestimate 0.25 mg and ethinyl estradiol 0.035 mg, plus 7 inactive green placebo tablets. It works primarily by suppressing ovulation and is FDA-approved for pregnancy prevention. For a full overview, see our guide on what Sprintec 28 Day is and how to take it.

Common Side Effects

The following side effects are the most frequently reported in clinical trials and post-market experience. Most are mild and tend to improve after 2-3 months of use:

• Headache or migraine — reported by approximately 32.9% of users, making it the most common side effect
• Nausea or vomiting — affects about 16.3% of users, especially in the first few cycles
• Vaginal infection — reported in about 8.4% of users
• Abdominal or gastrointestinal pain — occurs in roughly 7.8% of users
• Genital discharge — reported in about 6.8% of users
• Breast pain, tenderness, or enlargement — affects about 6.3% of users
• Mood changes or depression — some users experience shifts in mood, anxiety, or depressive symptoms
• Spotting or breakthrough bleeding — common in the first 1-3 months, especially if you miss a pill
• Bloating or fluid retention — mild water retention is common initially
• Weight changes — slight weight fluctuation is possible, though major weight gain is uncommon
• Dizziness — occasional lightheadedness may occur
• Acne changes — skin may initially worsen before improving (Sprintec is sometimes used off-label for acne)

Serious Side Effects

While rare, combination oral contraceptives like Sprintec carry risks of serious, potentially life-threatening side effects. Seek immediate medical attention if you experience any of the following:

• Blood clots (deep vein thrombosis or pulmonary embolism) — Symptoms include sudden leg pain or swelling, chest pain, or shortness of breath. Combination pills slightly increase clot risk compared to non-use.
• Stroke — Sudden severe headache, vision changes, slurred speech, weakness on one side of the body, or confusion.
• Heart attack — Chest pain or pressure, pain radiating to the arm or jaw, sweating, or nausea.
• High blood pressure — Sprintec can raise blood pressure in some women. Regular monitoring is recommended.
• Liver problems or liver tumors (rare) — Severe abdominal pain, jaundice (yellowing of skin or eyes), or unusual fatigue.
• Gallbladder disease — Pain in the upper right abdomen, especially after eating.
• Severe allergic reaction — Difficulty breathing, swelling of the face, lips, or throat, or widespread rash.

The Boxed Warning: Smoking and Cardiovascular Risk

Sprintec carries an FDA boxed warning — the most serious type of warning. Cigarette smoking increases the risk of serious cardiovascular events (blood clots, stroke, heart attack) from COC use. This risk increases with age and the number of cigarettes smoked. Women over 35 who smoke should not use Sprintec.

Side Effects in Specific Populations

Teens and Young Adults

Sprintec is not indicated for use before the first menstrual period (pre-menarchal). For adolescents who have begun menstruating, side effects are generally the same as in adults. Mood changes may be more noticeable in younger users.

Breastfeeding

Sprintec should not be used while breastfeeding, as combination hormonal contraceptives may reduce milk production. Progestin-only methods are typically recommended instead.

Women with Certain Health Conditions

Women with diabetes, hypertension, or high cholesterol should use Sprintec with caution and under close monitoring. It is contraindicated in women with uncontrolled hypertension, diabetes with vascular disease, or a history of blood clots. See the full list of drug interactions and contraindications.

How to Manage Common Side Effects

If you're experiencing mild side effects from Sprintec, here are some practical tips:

• Nausea — Take your pill with food or at bedtime instead of in the morning.
• Headaches — Stay hydrated, manage stress, and consider over-the-counter pain relief (check with your doctor first). If you experience migraines with aura, stop Sprintec and contact your doctor immediately.
• Breakthrough bleeding — This usually resolves within 3 months. Take your pill at the same time every day to minimize spotting.
• Mood changes — Track your mood for a few cycles. If depression or anxiety persists or worsens, talk to your provider about switching to a different formulation.
• Bloating — Reduce sodium intake and stay active. This typically improves after the first few cycles.
• Breast tenderness — Wearing a supportive bra and reducing caffeine may help. This often resolves within 2-3 months.

Important: Do not stop taking Sprintec without talking to your doctor first. If side effects are intolerable, your provider can help you switch to a different birth control — there are many alternatives to Sprintec 28 Day available.

Final Thoughts

Most side effects from Sprintec 28 Day are mild and temporary. Headaches, nausea, and spotting are the most common complaints, and they usually improve within the first 2-3 months. However, serious side effects like blood clots, stroke, and heart attack — while rare — require immediate medical attention. If you smoke and are over 35, Sprintec is not safe for you.

Talk to your doctor about what to expect, and don't hesitate to reach out if something doesn't feel right. If you need help finding Sprintec 28 Day at a pharmacy near you, Medfinder can help you locate it in stock.