Plan B One-Step Emergency Contraceptive, 1.5 Mg (1 Tablet)
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Product details
Top highlights
- Plan B must be taken within 72 hours (3 days) after unprotected sex or birth control failure. The sooner it is taken the better it works .
- You can find Plan B yourself in the Family Planning aisle at all major retail stores. There is no prescription or ID required to purchase Plan B in any U.S. state, and there is no age restriction.
- Plan B works by temporarily delaying ovulation. Plan B won't work if you are already pregnant and won’t impact an existing pregnancy.
- It should not be used as regular birth control
- Plan B will not impact your ability to get pregnant in the future.
Product specifications
Product Dimensions | 1.19 x 3.63 x 5.19 inches; 0.63 ounces |
Item Weight | 0.634 ounces |
Manufacturer | Foundation Consumer Healthcare |
ASIN | B00H2D6WUA |
Country of Origin | Hungary |
Item model number | 369536163000 |
Customer Reviews | 4.7 out of 5 stars 6,160Reviews |
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Best Sellers Rank |
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Is Discontinued By Manufacturer | No |
Date First Available | September 2, 2013 |
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Additional details
Plan B One-Step emergency contraception helps prevent pregnancy before it starts after unprotected sex or birth control failure. Plan B must be taken within 72 hours (3 days) after unprotected sex or birth control failure. The sooner it’s taken, the better it works. Plan B One-Step will not work if you are already pregnant and won’t impact an existing pregnancy Use as directed.
Important information
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Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
From the manufacturer
Plan B One-Step

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Customers say
Customers find the emergency contraceptive effective and reliable, providing peace of mind during unexpected situations. The product is easy to use with clear instructions, and customers report no side effects or nausea. While customers consider it worth the price when needed, some note it's not the cheapest option.
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Customers find that the emergency contraceptive works well and serves its purpose, with one customer noting it had no side effects.
AI Generated from the text of customer reviews
"Great product and works 👍..." Read more
"Works well lol" Read more
"Good product!..." Read more
"We have used this item twice. From what i can tell. It works. We have not had any problems with it failing so far...." Read more
Customers report positive experiences with this emergency contraceptive, noting no side effects or nausea.
AI Generated from the text of customer reviews
"...Therefore I took a double dose about 10 minutes after. I had no side effects." Read more
"...were clear, it was easy to take, and I experienced no major side effects...." Read more
"...No side effects, no fetuses. 10/10 recommend." Read more
"...is a pretty big dose of hormones I usually have some awful side effects for a few days (not as awful as a baby though haha)...." Read more
Customers find the emergency contraceptive easy to use, with clear instructions provided.
AI Generated from the text of customer reviews
"...The instructions were clear, it was easy to take, and I experienced no major side effects...." Read more
"...Very convenient." Read more
"I was reassured by the speed of delivery from Plan B One-Step. Easy to use and available without a prescription, it provided reliable protection..." Read more
"...They work great and are very easy to take. Amazon had them for sale so I just had to buy some for just in case purposes!" Read more
Customers find the emergency contraceptive life-saving, providing peace of mind during stressful and unexpected situations.
AI Generated from the text of customer reviews
"...It gave me peace of mind during a stressful and unexpected situation...." Read more
"...Def worked, I can promise you that. Saved me last minute before me and my boos vacation when I should’ve came back having triplets at least...." Read more
"...a week/ week and a half after my period and thus far, has kept me from getting knocked up Pros: works...." Read more
"No baby’s were harmed in the making of this video." Read more
Customers find the emergency contraceptive handy to keep on hand, with one customer comparing it to a first aid kit.
AI Generated from the text of customer reviews
"...A practical and effective solution in emergency situations." Read more
"...But hey, accidents happen and this is a great back up to have on hand...." Read more
"This is just like my first aid kit, fire extinguisher, smoke alarms, and guns...." Read more
"These will always be necessary and worth it when needed." Read more
Customers find the emergency contraceptive reliable and safe.
AI Generated from the text of customer reviews
"...Thank you for making this accessible and reliable!" Read more
"Best quality" Read more
"...Easy to use and available without a prescription, it provided reliable protection despite some mild side effects such as mild nausea...." Read more
"...Pretty reliable and had no worries soon after we took it. Discreet packaging and came as arrived, no pun intended." Read more
Customers have mixed opinions about the emergency contraceptive's value for money, with some finding it worth the price when needed, while others note it's not the cheapest option.
AI Generated from the text of customer reviews
"Great price for Amazon. Better than buying it at the store for double the cost" Read more
"Expensive? Yes. Worth it? Ofc. Ain't nobody tryna be preggo with a baby they don't want...." Read more
"...It is cheaper and less awkward to buy from here." Read more
"...Followed the exact way you was suppose to take it. Waste of money." Read more
Customers have mixed experiences with the emergency contraceptive, with some reporting successful prevention of pregnancy, while others express disappointment.
AI Generated from the text of customer reviews
"No babies :)" Read more
"Still childless :)" Read more
"...No side effects, no fetuses. 10/10 recommend." Read more
"...NO BABY y'all!..." Read more
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5.0 out of 5 starsVerified PurchaseTrustworthy When You Need ItReviewed in the United States on July 6, 2025I’m so grateful that this product exists. It gave me peace of mind during a stressful and unexpected situation. The instructions were clear, it was easy to take, and I experienced no major side effects. I took it within the recommended time frame, and it worked exactly as...I’m so grateful that this product exists. It gave me peace of mind during a stressful and unexpected situation. The instructions were clear, it was easy to take, and I experienced no major side effects. I took it within the recommended time frame, and it worked exactly as intended.
Of course, it’s not meant to be used regularly, but having it available as a backup option is empowering. I highly recommend keeping one on hand—because you never know when you might need it. Thank you for making this accessible and reliable!
I’m so grateful that this product exists. It gave me peace of mind during a stressful and unexpected situation. The instructions were clear, it was easy to take, and I experienced no major side effects. I took it within the recommended time frame, and it worked exactly as intended.
Of course, it’s not meant to be used regularly, but having it available as a backup option is empowering. I highly recommend keeping one on hand—because you never know when you might need it. Thank you for making this accessible and reliable!
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5.0 out of 5 starsVerified PurchaseIt is important to buy it if you do not want to get pregnant and it is veryReviewed in the United States on April 26, 2025This tablet is very Good
It is really the best
This tablet is very Good
It is really the best
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5.0 out of 5 starsVerified PurchasePlan B delays ovulation; it does not stop a pregnancy that already startedReviewed in the United States on September 24, 2022Preface: I share as much as I can to provide educational information to those who don’t have it. Better to be thorough than not. It may help someone, & that is enough for me. ~~~~~~~~ So what is Plan B? Plan B is made with a synthetic form of...Preface: I share as much as I can to provide educational information to those who don’t have it. Better to be thorough than not. It may help someone, & that is enough for me.
~~~~~~~~
So what is Plan B? Plan B is made with a synthetic form of progesterone called levonorgestrel to stop or delay the release of an egg before it has a chance to be fertilized. If ovulation has already occurred, the prevention of pregnancy is not guaranteed. Plan B & other brand emergency contraceptives (EC) — such as My Way, Take Action, Next Choice One Dose — cannot stop a released fertilized egg from implanting (attaching to the uterus/womb), according to studies.
In other words, if you’ve already ovulated by the time you took Plan B, your chances of getting pregnant are about the same as if you hadn’t taken it.
Taking EC also does not interrupt or harm an existing pregnancy. The FDA’s claims on what EC can & may do, makes it confusing but research is clearer about it. EC is not an abortifacient — meaning, it doesn’t abort a pregnancy nor “kill” the fertilized &/or implanted egg. If it did, there wouldn’t be so many reports of people realizing they’re pregnant some time after taking the pill. That’s hogwash propaganda. And it’s also why I feel it’s important to explain & emphasize what Plan B can & cannot do, according to research.
According to studies, emergency contraception is effective 75-89% of the time if taken within a 72-hour period from unprotected vaginal intercourse. The longest suggested is 120 hours (5 days). Please know the further you are from the hour you ended intercourse, the lower the EC’s effectiveness becomes. So if you take it within two hours, for example, you’re about 89% protected. If you take it by the 67th hour, you’re more likely only 75% protected at this point. Other variabilities are on a woman’s cycle & body, i.e. weight/BMI.
If you put its percentage of effectiveness into stats, it would mean that an estimated 11 to 25 women out of 100 women who take EC post-unprotected vaginal intercourse are to become pregnant anyway. Note that sperm can live in a woman’s uterus for up to five days.
Understanding how to keep track of ovulation, discharge textures & smells, slight changes in body, symptoms throughout one’s cycle, & etc., is important, otherwise EC will continue to be open to failure at such high rates. Knowing these things adds more protection & personal autonomy as to when one is least likely to become pregnant. This doesn’t include women who had no choice in unprotected penetration. The nature of the pill itself is for emergencies, hence no guarantees, only an option to prevent/delay a process. The pill itself isn’t necessarily the only reason for failure; part of the failure lies in the process of how the pill is being taken & when, & other factors.
In the FDA’s language, it is written, “It is possible that Plan B One-Step may also work ... by preventing attachment (implantation) to the uterus (womb).” KEYWORD: MAY. May does not mean “will”, & as I’ve mentioned, research doesn’t support that claim.
I have taken Plan B a few times throughout my life, & fortunately did not get pregnant during those times. I am now on birth control, which is more effective than EC. It is not recommended to take EC as part of a routine birth control as it is LESS effective than BC. It doesn’t last long, & even taking BC today isn’t recommended if you plan to have unprotected intercourse tomorrow, for example. To add, the amount of hormones you’re adding to your body wouldn’t be healthy to take regularly, so it’s important to only take this during emergencies & consider using birth control that works for you (whether it’s medicated or not). There are different methods & places to get women’s healthcare, so I hope you can find a good place to get a checkup & the medication you need.
Remember: Plan B is only an emergency option intended to delay or stop ovulation by “tricking” the body into thinking you’re pregnant through use of a synthetic hormone, but it does not stop an existing pregnancy.
I also wanted to mention — after seeing a few posts online & a review of this product — that this should not be taken by anyone that doesn’t ovulate. A review I came across was from a boyfriend who took Plan B & was upset his girlfriend ended up pregnant.
Best of luck if you take this pill. May the odds be in your favor.
Preface: I share as much as I can to provide educational information to those who don’t have it. Better to be thorough than not. It may help someone, & that is enough for me.
~~~~~~~~
So what is Plan B? Plan B is made with a synthetic form of progesterone called levonorgestrel to stop or delay the release of an egg before it has a chance to be fertilized. If ovulation has already occurred, the prevention of pregnancy is not guaranteed. Plan B & other brand emergency contraceptives (EC) — such as My Way, Take Action, Next Choice One Dose — cannot stop a released fertilized egg from implanting (attaching to the uterus/womb), according to studies.
In other words, if you’ve already ovulated by the time you took Plan B, your chances of getting pregnant are about the same as if you hadn’t taken it.
Taking EC also does not interrupt or harm an existing pregnancy. The FDA’s claims on what EC can & may do, makes it confusing but research is clearer about it. EC is not an abortifacient — meaning, it doesn’t abort a pregnancy nor “kill” the fertilized &/or implanted egg. If it did, there wouldn’t be so many reports of people realizing they’re pregnant some time after taking the pill. That’s hogwash propaganda. And it’s also why I feel it’s important to explain & emphasize what Plan B can & cannot do, according to research.
According to studies, emergency contraception is effective 75-89% of the time if taken within a 72-hour period from unprotected vaginal intercourse. The longest suggested is 120 hours (5 days). Please know the further you are from the hour you ended intercourse, the lower the EC’s effectiveness becomes. So if you take it within two hours, for example, you’re about 89% protected. If you take it by the 67th hour, you’re more likely only 75% protected at this point. Other variabilities are on a woman’s cycle & body, i.e. weight/BMI.
If you put its percentage of effectiveness into stats, it would mean that an estimated 11 to 25 women out of 100 women who take EC post-unprotected vaginal intercourse are to become pregnant anyway. Note that sperm can live in a woman’s uterus for up to five days.
Understanding how to keep track of ovulation, discharge textures & smells, slight changes in body, symptoms throughout one’s cycle, & etc., is important, otherwise EC will continue to be open to failure at such high rates. Knowing these things adds more protection & personal autonomy as to when one is least likely to become pregnant. This doesn’t include women who had no choice in unprotected penetration. The nature of the pill itself is for emergencies, hence no guarantees, only an option to prevent/delay a process. The pill itself isn’t necessarily the only reason for failure; part of the failure lies in the process of how the pill is being taken & when, & other factors.
In the FDA’s language, it is written, “It is possible that Plan B One-Step may also work ... by preventing attachment (implantation) to the uterus (womb).” KEYWORD: MAY. May does not mean “will”, & as I’ve mentioned, research doesn’t support that claim.
I have taken Plan B a few times throughout my life, & fortunately did not get pregnant during those times. I am now on birth control, which is more effective than EC. It is not recommended to take EC as part of a routine birth control as it is LESS effective than BC. It doesn’t last long, & even taking BC today isn’t recommended if you plan to have unprotected intercourse tomorrow, for example. To add, the amount of hormones you’re adding to your body wouldn’t be healthy to take regularly, so it’s important to only take this during emergencies & consider using birth control that works for you (whether it’s medicated or not). There are different methods & places to get women’s healthcare, so I hope you can find a good place to get a checkup & the medication you need.
Remember: Plan B is only an emergency option intended to delay or stop ovulation by “tricking” the body into thinking you’re pregnant through use of a synthetic hormone, but it does not stop an existing pregnancy.
I also wanted to mention — after seeing a few posts online & a review of this product — that this should not be taken by anyone that doesn’t ovulate. A review I came across was from a boyfriend who took Plan B & was upset his girlfriend ended up pregnant.
Best of luck if you take this pill. May the odds be in your favor.
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5.0 out of 5 starsVerified PurchaseBuenoReviewed in the United States on June 20, 2025Lo mejor
Lo mejor
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