Abortion and contraception opponents love to conflate the so-called "morning after pill" and the abortion pill. Do not let them do this. Do not help them by not making the distinction. These two pills are not the same.
Plan B is NOT an abortion pill. It is a contraceptive taken in order to prevent pregnancy from occurring. It does not require a prescription.
Plan B: https://www.verywellhealth.com/how-plan-b-works-906842
The FDA labeling for the Plan B emergency contraceptive says Plan B may work by preventing implantation of the fertilized egg. This has created controversy over its use. Research, however, shows that Plan B does not work this way. Instead, it works by preventing ovulation and fertilization of the egg.
More about Plan B:
https://www.plannedparenthood.org/learn/morning-after-pill-emergency-contraception/whats-plan-b-morning-after-pill
RU486 is an abortion pill. It is taken to end a pregnancy after it has already occurred. It requires a prescription.
RU486:
https://www.verywellhealth.com/how-to-use-ru486-the-abortion-pill-906958
Once you have signed a consent to have a medical abortion, you will be given three pills (200 mg each) of the abortion pill to be taken by mouth while you are at the doctor's office.2 The hormonal action of mifepristone works against progesterone, a pregnancy hormone, to make the fertilized egg unable to remain attached to the lining of the uterus. This step induces a medical abortion about 64 percent to 85 percent of the time.
More about RU486:
https://www.plannedparenthood.org/learn/abortion/the-abortion-pill
Finally found a Plan C website link (
https://www.plancpills.org/) at the very end of this article:
https://www.wccbcharlotte.com/2021/09/03/plan-c-how-to-access-safe-abortion-pills-online/