Sprintec is a widely prescribed, effective combination birth control pill. With perfect use, it prevents pregnancy 99.7% of the time. With typical use, which accounts for missed pills and human error, about 9 out of 100 women will become pregnant in the first year. Those numbers are standard across combination pills, and Sprintec performs on par with other options in its class.
What Sprintec Is
Sprintec is a monophasic combination pill, meaning every active tablet contains the same dose of two hormones: 0.250 mg of norgestimate (a progestin) and 0.035 mg of ethinyl estradiol (a synthetic estrogen). Each pack contains 21 active blue tablets and 7 inactive white tablets. The monophasic design is a practical advantage: because every active pill is identical, the order matters less if you accidentally pop one out of sequence, and side effects tend to stay consistent throughout the month rather than shifting as hormone levels change.
How Well It Works
The gap between perfect and typical use is the most important number to understand. At 0.3% failure with perfect use and 9% with typical use, the real-world effectiveness of combination pills like Sprintec depends almost entirely on the person taking them. Taking your pill at roughly the same time each day, not skipping doses, and being aware of drug interactions are what close that gap.
Sprintec is a generic version of Ortho-Cyclen, and the two are pharmaceutically equivalent. You’re getting the same active ingredients at the same doses, typically at a lower cost.
Common Side Effects
The most frequently reported side effects include nausea, headaches, breast tenderness, breakthrough bleeding or spotting, and mood changes. These tend to be most noticeable during the first two to three months as your body adjusts. Breakthrough bleeding, in particular, often resolves on its own after the first few cycles. If side effects persist beyond three months, that’s a reasonable point to talk to your provider about switching formulations.
Sprintec’s labeling also notes that the combination of ethinyl estradiol and norgestimate may reduce free testosterone levels in the body, which can improve acne. While Sprintec itself isn’t specifically FDA-approved for acne treatment, its brand-name counterpart Ortho Tri-Cyclen (which uses the same progestin) is, and many providers prescribe Sprintec with this benefit in mind.
Weight Gain Concerns
Weight gain is one of the most common worries people have about starting the pill. Clinical evidence is reassuring here. A study that tracked both normal-weight and obese women on combination pills for three to four months found no statistically significant changes in weight or body composition in either group. While individual experiences vary, and some people notice temporary water retention in the first few weeks, the pill itself does not appear to cause meaningful fat gain.
Effects on Mood
Mood changes are a real possibility. A large Danish study following over one million women found that hormonal contraceptive users had a slightly higher rate of depression: about 2.2 out of 100 women using hormonal birth control developed depression, compared to 1.7 out of 100 who did not. That’s a small but measurable difference. The study looked at all types of hormonal contraception and found higher risks with progestin-only methods than with combination pills like Sprintec.
If you have a history of depression or notice persistent low mood, irritability, or emotional flatness after starting Sprintec, it’s worth flagging. Some people find that a different formulation or a non-hormonal method works better for them.
Serious Risks
The most significant risk with any combination birth control pill is blood clots. Combination pills increase the risk of venous thromboembolism three- to five-fold compared to non-users. That sounds dramatic, but context matters: the baseline rate in young women is very low, and the incidence among pill users is roughly 0.06 per 100 pill-years. For comparison, the rate during pregnancy and the postpartum period is about 0.2 per 100 years, more than three times higher than the pill.
Certain factors raise clot risk further: smoking, obesity, a personal or family history of blood clots, and prolonged immobility. Sprintec is specifically contraindicated for women over 35 who smoke. The combination of nicotine, age, and synthetic estrogen significantly increases the chance of serious cardiovascular events, including stroke and heart attack.
Drug Interactions That Reduce Effectiveness
Some medications can make Sprintec substantially less effective by speeding up how your liver breaks down its hormones. The most well-documented interaction is with rifampin, an antibiotic used for tuberculosis and certain other infections. Studies show that rifampin can reduce progestin exposure by 30 to 83% and estrogen exposure by 42 to 66%, which is enough to allow ovulation and risk pregnancy. The World Health Organization advises against relying on combination pills while taking rifampin or the related drug rifabutin.
Certain seizure medications also interfere with combination pill effectiveness through similar mechanisms. If you’re prescribed any new medication, let your provider know you’re on Sprintec so they can check for interactions.
What to Do If You Miss a Pill
Missing one pill (meaning it’s been 24 to 48 hours since you should have taken it) is straightforward: take it as soon as you remember, then take your next pill at the usual time, even if that means doubling up for a day. No backup contraception is needed.
Missing two or more pills in a row requires more caution. Take the most recent missed pill right away and discard any others you skipped. Continue with the rest of the pack on schedule, but use condoms or abstain for the next seven days. If those missed pills fell in the last week of active tablets, skip the placebo week entirely and start a new pack immediately to maintain hormone levels. If you missed pills during the first week and had unprotected sex in the previous five days, emergency contraception is worth considering.
How Sprintec Compares to Other Options
Sprintec’s combination of norgestimate and ethinyl estradiol is considered a well-tolerated, “middle of the road” formulation. Norgestimate tends to have fewer androgenic side effects (like oily skin or hair growth) than older progestins, which is one reason it’s so commonly prescribed. The 0.035 mg estrogen dose is moderate: lower-dose pills (0.020 mg) may cause more breakthrough bleeding, while Sprintec’s slightly higher estrogen level often provides better cycle control.
No single birth control pill is objectively “the best.” Sprintec works well for many people, but hormonal contraception is highly individual. What causes intolerable side effects for one person may be completely seamless for another. If Sprintec doesn’t feel right after three months, there are dozens of other formulations with different hormone types and doses to try. The pill that works best is the one you can take consistently without side effects that interfere with your daily life.