Mifepristone and misoprostol are two different molecules with two different jobs. They are named together so often that many readers assume they are the same thing. They are not — and the difference decides what each one can and cannot do.
Mifepristone is a progesterone receptor antagonist. Progesterone is the hormone a pregnancy depends on: it keeps the uterine lining receptive and it suppresses uterine contractility.
Mifepristone occupies those receptors without activating them, so the progesterone signal stops. What follows is a chain of changes — the cervix softens, the uterine muscle becomes more responsive to stimulation, and the hormonal support the pregnancy relies on is withdrawn.
Here is the distinction that matters: mifepristone removes the support; misoprostol produces the contraction. One prepares, the other acts. That is why published World Health Organization guidance describes them in sequence rather than as alternatives.
This is one of the most searched questions, and it deserves a precise answer rather than a guess:
The practical consequence: a visual description found online cannot settle whether a pack in your hand is genuine. With misoprostol the engraved imprint gives you something to check. With mifepristone, the source of supply is the only meaningful evidence.
| Criterion | Mifepristone | Misoprostol (Cytotec) |
|---|---|---|
| Role | Blocks the hormone the pregnancy needs | Produces uterine contractions |
| Class | Progesterone receptor antagonist | Synthetic prostaglandin E1 analogue |
| Common strength | 200 milligrams | 200 micrograms |
| Tablet | Round, pale — imprint varies | White hexagonal, SEARLE over 1461 |
| Visual verification | Limited — no universal imprint | Possible via the engraved imprint |
| Other registered uses | Limited | Gastric ulcer prevention; postpartum haemorrhage |
| Availability in the UAE | Not stocked in pharmacies | Prescription medicine, dispensed on prescription |
Mifepristone is not stocked in UAE pharmacies, unlike misoprostol, which is a registered prescription medicine with approved indications.
Two practical consequences follow:
If mifepristone is what you were searching for, the correct route is a qualified doctor inside a licensed facility who assesses your case and decides what is appropriate within what is legally available.
Whether the subject is mifepristone or misoprostol, the frame is the same: a pregnancy of no more than 9 weeks — 63 days from the first day of the last menstrual period, confirmed by ultrasound rather than estimated.
Beyond that limit the question leaves the scope of any web page and requires direct medical supervision inside a health facility. The same applies where an ectopic pregnancy is suspected, where an IUD is in place, where bleeding is already ongoing, where a clotting disorder is known, or where there is a previous prostaglandin allergy.
Emergency number in the UAE: 998 — for bleeding that soaks more than two large pads per hour for two consecutive hours, fever above 38 °C lasting more than 24 hours, pain that does not respond to analgesia, or fainting.
A progesterone receptor antagonist: it occupies the receptors without activating them, so the hormonal support a pregnancy depends on is withdrawn. Published guidance describes it in sequence with misoprostol, not as a substitute for it.
Usually round and pale — light yellow or cream — at a strength of 200 milligrams. But the imprint varies by manufacturer and country; there is no universal marking equivalent to SEARLE 1461 on Cytotec, so a visual description cannot verify a pack.
Mifepristone removes the hormonal support the pregnancy relies on; misoprostol produces the uterine contractions. The units differ too: mifepristone in milligrams, misoprostol in micrograms — a thousandfold difference.
It is not stocked in UAE pharmacies, unlike misoprostol which is a registered prescription medicine. Any local offer operates outside the regulated channel and its source cannot be verified.
Because the World Health Organization publishes one regimen combining them in sequence and another using misoprostol alone. Naming them together describes a published protocol; it is not a dosing suggestion, and the choice is a clinical decision after examination.
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