Medicine mix-ups happen at home. A man may swallow his partner’s pill by mistake. Others wonder if the pill could work for men too. So, what happens if a male takes birth control pills? One accidental pill usually does little or nothing.
Taking them regularly is a different story. These pills are made for the female body. In men, they can lower testosterone, cause breast changes and raise the risk of blood clots. Read on to learn what to expect, who is at risk and what real male contraception options exist.
What Happens If a Male Takes Birth Control Pills?
Dr Lavanya Kiran, Director and Lead Consultant, Obstetrics, Gynaecology, KIMS Hospitals, Electronic City, Bengaluru explains, “A single accidental pill usually causes little or nothing, and at most mild nausea or dizziness. Taking them regularly is a different matter.” She adds that the pills are “not a safe or reliable way for men to prevent pregnancy.”
What Is in a Birth Control Pill, and Why Doesn’t It Suit Men?
“Contraceptive pills are made for the female body,” says Dr Kiran. Combined pills contain oestrogen and a progestin, a man-made form of progesterone.
Mini pills contain only a progestin. In women, these hormones stop ovulation (the release of an egg) and thicken cervical mucus.
“Men do not ovulate, so the pill’s main action does not apply to them.” So the pill has no useful job in a man’s body. It can still change his hormone levels.
What Happens After a Man Takes One Birth Control Pill by Mistake?
“Most healthy men feel nothing at all,” says Dr Kiran.
- Some may notice mild nausea, a headache, dizziness or an upset stomach.
- No lasting harm is expected from a single dose.
- Drink water, eat something light and rest.
- A young child who swallows one pill is usually not in danger. Still, call a doctor or poison helpline for advice. Keep pill strips locked away.
Side Effects of Birth Control Pills in Men Who Take Them Regularly
-1784530094573.jpg)
“Repeated use can cause hormonal changes,” says Dr Kiran. Possible effects include:
- Breast tenderness or growth (gynaecomastia), caused by extra oestrogen
- Lower testosterone, which can reduce muscle mass and energy
- Low sex drive and erectile difficulty
- Mood changes, such as irritability or low mood
- Nausea, headaches, fluid retention and weight changes
- Raised blood pressure in some people
- Reduced sperm production, which is unpredictable and unreliable
- A higher risk of blood clots, including deep vein thrombosis (a clot in a leg vein)
- Clots can be serious if they travel to the lungs. Some effects may fade after stopping. But breast tissue growth may not fully go away.
Can Birth Control Pills Work as Male Contraception?
“No. This is the key point,” says Dr Kiran.
- Female pills were never tested for preventing pregnancy in men.
- Sperm are not stopped fast enough, and not completely.
- “A man relying on them could still get his partner pregnant.”
- He also faces side effects with no proven benefit.
Why Don’t Female Pills Simply Switch Off Sperm in Men?
Two brain hormones, LH and FSH, tell the testes to make testosterone and sperm. Stopping sperm needs a careful hormone balance. Dr Kiran says, “Female pills do not strike that balance, and a man cannot safely adjust the dose himself.”
Hidden Risks of Men Taking Birth Control Pills
“Hormone changes can build up quietly, so a man may not notice them for weeks,” says Dr Kiran.
- Taking a partner’s pills “to share the load” is unsafe. It does not protect her.
- Online advice on this is not backed by medical trials.
- Household mix-ups are more common than people think.
Who Should Be Extra Careful?
“People with a clotting history, high blood pressure, migraine, liver disease or who smoke face greater risk,” says Dr Kiran. Take extra care if you are:
- A smoker, or overweight, or sit for long hours
- Living with heart disease, diabetes or kidney problems
- An older man
- On medicines that affect hormones
- Someone with a history of breast cancer or prostate problems
When to See a Doctor After a Man Takes Birth Control Pills
Call a doctor if there is:
- Use for more than a few days
- Breast pain, swelling or lumps
- Leg pain, swelling or warmth, mainly in one leg
- Severe headache, vision changes or weakness
- Repeated vomiting or confusion
Dr Kiran warns that sudden chest pain, shortness of breath or coughing blood “is an emergency.”
Male Birth Control Options Available Today
Dr Kiran advises, “Speak to a doctor about the best option.”
- Condoms: these also protect against many infections.
- Vasectomy: a permanent, minor procedure that blocks the tubes carrying sperm.
- Withdrawal: not reliable.
Couples can also use female-side methods, such as IUDs, implants or injections.
Is a Male Birth Control Pill Coming? What Trials Show
Dr Kiran says, “Do not try to copy these with female pills.” The new methods use specific doses and are still in testing.
YCT-529: A first human trial of this hormone-free pill, published in Communications Medicine, found it well tolerated. It involved 16 men. Hormone levels, mood and sexual function were unaffected. Trials on how well it works are now underway.
NES/T gel: This shoulder gel is the furthest along. After a trial in 462 couples, a Phase 3 trial is expected in 2027.
Such methods would need about three months of daily use before they work. Neither is available yet.
Safe Storage Tips for Birth Control Pills
“If a man takes one by accident, do not panic,” says Dr Kiran.
- Store pills out of reach, in their original packs.
- Never share prescription pills.
- Keep a record of any medicine taken by mistake and tell the doctor.
ALSO READ- Does Daily Sex Reduce Sperm? Sexologist Explains What Happens To Sperm Count And Quality
Conclusion
One accidental pill is unlikely to harm a man. Regular use is a different matter. It can cause breast growth, low testosterone, mood changes and a higher risk of blood clots. It also does not work as contraception.
Dr Kiran says, “Men have safe options today, such as condoms and vasectomy.” New male pills and gels are in trials, but they are not yet available. Until then, leave female pills to the women they were made for. If a mix-up happens, stay calm, watch for symptoms and speak to a doctor.
FAQ
1. Are Mini Pills Safer for Men Than Combined Birth Control Pills?
No. Mini pills contain only a progestin, a man-made form of progesterone. They are still made for the female body. They have not been tested as male contraception. They can still change a man’s hormones, and they will not reliably prevent pregnancy.2. Can Birth Control Pills Interact With a Man’s Other Medicines?
Yes. Mixing them with other medicines or supplements can change how they act in the body. Medicines that affect hormones are of particular concern. If a man has taken a pill by mistake, he should tell his doctor or pharmacist about everything else he takes.
All possible measures have been taken to ensure accuracy, reliability, timeliness and authenticity of the information; however Onlymyhealth.com does not take any liability for the same. Using any information provided by the website is solely at the viewers’ discretion. In case of any medical exigencies/ persistent health issues, we advise you to seek a qualified medical practitioner before putting to use any advice/tips given by our team or any third party in form of answers/comments on the above mentioned website.
How we keep this article up to date:
We work with experts and keep a close eye on the latest in health and wellness. Whenever there is a new research or helpful information, we update our articles with accurate and useful advice.
-
Current Version
Oct 21, 2026 12:52 IST
Published By : Vivek Kumar
Reviewed By : Dr Lavanya Kiran