Hormonal Contraceptives —
Complete Comparison

The combined oral contraceptive — commonly called "the pill" — is the most widely used prescription contraceptive in the world. All COCs contain ethinyl estradiol paired with a progestin, though they differ in estrogen amount, progestin type, and dosing schedule (monophasic, biphasic, or triphasic).

Monophasic pills deliver the same hormone levels every active day. Biphasic and triphasic formulations vary the hormone ratios across the pack, mimicking a more "natural" hormonal pattern. Clinically, the differences between phasing patterns are modest — prescribers often select based on progestin choice and tolerability.

The progestin matters significantly. Drospirenone (Yaz, Yasmin) has anti-androgenic and anti-mineralocorticoid activity, making it particularly useful for acne and PCOS, and reducing water retention — but carries a slightly higher VTE risk than older progestins. Levonorgestrel (many generics) is older, lower-cost, and extensively studied. Norgestimate (Sprintec, Ortho-Cyclen) and desogestrel have lower androgenic activity and are often selected for acne. Norethindrone is among the oldest progestins, found in many low-cost generics.

Beyond contraception, COCs are FDA-approved or widely used for: acne vulgaris, PCOS hormonal management, endometriosis, primary dysmenorrhea (painful periods), and PMDD. Extended-cycle formulations (Seasonique, Seasonale) reduce periods to quarterly.

The contraceptive patch delivers ethinyl estradiol and a progestin (norelgestromin) through the skin, bypassing first-pass liver metabolism. A new patch is applied weekly for three weeks, followed by one patch-free week — the same hormonal rhythm as a 28-day pill pack.

The patch is convenient for those who find it difficult to remember a daily pill. It can be worn on the abdomen, buttock, upper arm, or upper torso (not the breast). Skin irritation at the application site is the most common local side effect; rotating locations helps.

Importantly, Xulane exposes the body to approximately 60% more ethinyl estradiol than a standard 35 mcg pill. This higher systemic estrogen exposure means the patch carries the same contraindications as COCs — but these apply with even greater weight. Prescribers often discuss this distinction when a patient is borderline for estrogen-related contraindications. Twirla (levonorgestrel + EE) was developed for lower BMI patients, as patch effectiveness can decline in those over ~198 lbs.

The vaginal ring is a flexible silicone ring worn inside the vagina, where it continuously releases low amounts of estrogen and progestin absorbed through the vaginal mucosa. The local delivery route means the hormones bypass liver metabolism and reach circulation at lower concentrations than most pills.

NuvaRing (etonogestrel + ethinyl estradiol) is inserted for 3 weeks and removed for 1 week. It delivers a relatively low systemic estrogen level — lower than Xulane and comparable to a low-dose pill. Many users appreciate not having to remember a daily action.

Annovera (segesterone + ethinyl estradiol) is a reusable ring designed for an entire year: worn for 21 days, removed for 7, washed, stored, and reinserted — for 13 cycles total. This annual design significantly reduces both the environmental footprint and the cost per cycle compared to monthly options.

The progestin-only pill — often called the minipill — contains no estrogen. Traditional formulations (norethindrone) require strict daily timing: they must be taken within a 3-hour window each day to maintain effectiveness, because their primary mechanism (cervical mucus thickening) depends on consistent progestin levels. Missing this window requires backup contraception for 48 hours.

Slynd (drospirenone 4mg) is a newer progestin-only pill with a more forgiving 24-hour window — comparable to combined pills — because drospirenone has a longer half-life and Slynd contains a higher-activity progestin that suppresses ovulation more reliably. This makes Slynd significantly more practical for many users.

Progestin-only pills are the preferred oral contraceptive for breastfeeding individuals (no effect on milk supply or infant), those with migraine with aura, women over 35 who smoke, and those with a history of VTE where estrogen is contraindicated.

Hormonal IUDs are small T-shaped devices inserted into the uterus by a clinician, where they release low levels of levonorgestrel locally. Because the progestin acts primarily within the uterus — thickening cervical mucus, thinning the endometrium, and in higher-dose devices sometimes suppressing ovulation — systemic hormone levels are dramatically lower than with any pill or patch.

Mirena (52mg levonorgestrel over 8 years) is the most studied and the highest-dose option, making it the most effective hormonal IUD and most likely to produce amenorrhea (no periods). Many users experience progressively lighter periods over the first 3–6 months, with roughly 20% having no periods at all by the end of year one. Kyleena (19.5mg, 5 years) and Skyla (13.5mg, 3 years) release less hormone — Skyla is notably smaller, designed for those who have never been pregnant. Liletta (52mg, 8 years) is a lower-cost alternative to Mirena with similar specifications.

Effectiveness is essentially independent of user behavior — a major advantage. Fertility returns promptly after removal, with most studies showing return to baseline fertility within the first cycle.

Nexplanon is a 4 cm matchstick-sized rod inserted under the skin of the upper arm by a trained clinician. It continuously releases etonogestrel (a progestin), suppressing ovulation reliably for up to 3 years. It is the single most effective reversible contraceptive available — more effective than female sterilization in real-world use — because there is literally nothing the user needs to do after insertion.

The implant is radiopaque (visible on X-ray), which allows it to be located if needed. Insertion and removal are quick in-office procedures performed under local anesthesia. Fertility returns rapidly after removal — most people ovulate within the first month.

The main clinical trade-off is unpredictable bleeding. During the first year, irregular spotting or prolonged light bleeding is common — reported by roughly one in three users. Some experience amenorrhea; others have frequent irregular bleeding. This pattern often improves after the first year but varies considerably. This is the most common reason people request early removal.

Depo-Provera is an injection of depot medroxyprogesterone acetate (DMPA) given every 12–13 weeks, usually in the arm or buttock. It works primarily by suppressing ovulation. Because the drug depot persists in muscle tissue, it provides reliable contraception without any daily user action.

Two important considerations set the injectable apart from other progestin-only methods. First, return to fertility is delayed: after stopping injections, it takes an average of 6–12 months for ovulation to resume, and for some people up to 18 months. This delay should factor into family planning discussions. Second, long-term use can affect bone mineral density — DMPA suppresses estrogen along with progesterone, and prolonged use (especially in adolescents and young adults who are still building peak bone density) is associated with reversible bone loss. The FDA recommends discussing this risk with long-term users, though bone density typically recovers after discontinuation.

Irregular bleeding is common in the first months; many users develop amenorrhea after the first year, which most find convenient.

Paragard is a T-shaped device wrapped in copper wire, inserted into the uterus. It contains no hormones. Copper ions continuously released into the uterine environment are directly spermicidal and alter the uterine environment in ways that prevent fertilization. It also affects sperm motility and may prevent implantation.

With typical use effectiveness of ~99.2% and a 10-year lifespan, it is one of the most effective and cost-effective long-term contraceptive options available. Fertility returns immediately upon removal.

The key trade-off: many users experience heavier menstrual flow and more cramping, particularly in the first 3–6 months after insertion. This often improves over time, but for those with already heavy periods, a hormonal IUD may be a better fit.

Emergency contraception use: The copper IUD is the most effective form of emergency contraception available — more than 99% effective at preventing pregnancy when inserted within 5 days of unprotected intercourse. It then continues to provide ongoing contraception for up to 10 years.

Barrier methods physically block sperm from reaching the egg. They are the only contraceptive methods that also reduce STI transmission risk — external (male) condoms in particular are highly effective against HIV and other STIs when used consistently and correctly.

Effectiveness is highly user-dependent. With perfect use, external condoms are approximately 98% effective; typical use drops to around 85–88%. Diaphragms and cervical caps require fitting by a clinician and use with spermicide; their typical-use effectiveness is 71–88% depending on prior pregnancy history.

Barrier methods are often combined with hormonal methods for dual protection — particularly important when STI risk is a concern alongside pregnancy prevention.