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Generic Name: ulipristal (UE li PRIS tal)
Brand Names: ella
ella (ulipristal) is an emergency contraceptive used to prevent pregnancy after having sex without using a condom or other effective birth control method. Includes ella side effects, interactions and indications.
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Drug Information:
ella (ulipristal) is an emergency contraceptive. It works by stopping or delaying the release of an egg from an ovary. Ulipristal may also make it harder for a fertilized egg to attach to the uterus. ella is used to prevent pregnancy after having sex without using a condom or other effective birth control method. It is also used to prevent pregnancy after a regular form of birth control has failed. This medicine is not to be used as a regular form of daily, weekly, or monthly birth control. ELLA SHOULD NOT BE USED TO TERMINATE AN EXISTING PREGNANCY. Learn more

Ella Side Effects

Ella Side Effects

Note: This document contains side effect information about ulipristal. Some of the dosage forms listed on this page may not apply to the brand name ella.

In Summary

Common side effects of ella include: menstruation. Other side effects include: intermenstrual bleeding. See below for a comprehensive list of adverse effects.

For the Consumer

Applies to ulipristal: oral tablet

Along with its needed effects, ulipristal (the active ingredient contained in ella) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking ulipristal:

More common

  • Cramps
  • heavy bleeding
  • pain

Some side effects of ulipristal may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

  • Abdominal or stomach pain
  • headache
  • nausea
  • unusual tiredness or weakness

Less common

  • Dizziness

Incidence not known

  • Blemishes on the skin
  • pimples

For Healthcare Professionals

Applies to ulipristal: oral tablet


Very common (10% or more): Amenorrhea (up to 80.8%), endometrial thickening (up to 15%), dysmenorrhea (up to 13%)

Common (1% to 10%): Pelvic pain, uterine hemorrhage, ovarian cyst

Uncommon (0.1% to 1%): Menorrhagia, menstrual disorder, vaginitis, premenstrual syndrome, metrorrhagia, vaginal/genital discharge, urinary incontinence, ruptured ovarian cyst

Rare (less than 0.1%): Genital pruritus, dyspareunia, vulvovaginal pain, hypomenorrhea

-Endometrial thickening (more than 16 mm) reverses when treatment is stopped and menstrual periods resume. This condition should not be mistaken for endometrial hyperplasia as these changes are reversible after treatment cessation.


Very common (10% or more): Hot flush (up to 24%)

Common (1% to 10%): Breast tenderness/pain, vertigo, edema

Uncommon (0.1% to 1%): Hot flush, pyrexia, breast swelling/discomfort

Rare (less than 0.1%): Thirst


-The most common adverse reactions (10% or more) reported were hot flush, headache, nausea, abdominal pain, and dysmenorrhea.


Common (1% to 10%): Acne, hyperhidrosis

Uncommon (0.1% to 1%): Alopecia, dry skin, skin lesion, pruritus

Rare (less than 0.1%): Urticaria


Very common (10% or more): Abdominal pain (up to 15%), nausea (up to 13%)

Common (1% to 10%): Abdominal discomfort, vomiting

Uncommon (0.1% to 1%): Diarrhea, dry mouth, dyspepsia, flatulence


Uncommon (0.1% to 1%): Influenza


Common (1% to 10%): Blood cholesterol increased

Uncommon (0.1% to 1%): Appetite disorders, blood triglycerides increased, weight increased


Common (1% to 10%): Myalgia, back pain, musculoskeletal pain

Uncommon (0.1% to 1%): Asthenia

Nervous system

Very common (10% or more): Headache (up to 19%)

Common (1% to 10%): Fatigue, dizziness

Uncommon (0.1% to 1%): Somnolence, migraine, chills, malaise

Rare (less than 0.1%): Tremor, disturbance in attention, dysgeusia, syncope


Uncommon (0.1% to 1%): Visual disturbance

Rare (less than 0.1%): Abnormal sensation in eye, ocular hyperemia, photophobia


Common (1% to 10%): Mood disorders

Uncommon (0.1% to 1%): Emotional disorder, anxiety, insomnia, hyperactivity disorder, libido changes

Rare (less than 0.1%): Disorientation


Uncommon (0.1% to 1%): Epistaxis

Rare (less than 0.1%): Dry throat

Editorial References and Review

Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.

Source: Drugs.com Ella