Cilest is known as a combined oral contraceptive. It is used to prevent pregnancy when taken as directed. Cilest contains a combination of Norgestimate and Ethinylestradiol.

Learn more about Cilest or ask our pharmacist

What is Cilest?

Cilest is a combined hormonal contraceptive pill, containing two types of female sex hormones, oestrogen and progestogen. These hormones prevent an egg from being released, so you can’t get pregnant. Cilest also makes the fluid in your cervic thicker, making it more difficult for sperm to enter the womb. 

How do you take Cilest?

You should take one Cilest tablet each day and should take a pill whole with water at the roughly the same time each day. 

The Cilest packet is marked with the day of the week, you should follow the arrow until the strip is empty (21 days). Following this, you have 7 days where you do not take any Cilest pills before starting a new strip. 

Side effects of Cilest?

As with any form of medication, Cilest has side effects. For a full list of side effects, please read the Patient Information Leaflet of Cilest.  Below are a few of the common side effects of taking Cilest: 

  • Headache 
  • Stomach problems 
  • Bleeding between periods 
  • Painful/unusual periods 
  • Migraine 
  • Swollen extremities 
  •  Mood changes 
  • Difficulty sleeping 
  • Acne 
  • Painful breasts 
  • Urinary tract infections 
  • Vaginal discharge 
  • Weight gain 
  • Feeling weak 

For a full list of side effects, please read the Patient Information Leaflet of Cilest. 

Interactions with alcohol and food?

Alcohol does not have an adverse reaction when consumed alongside Cilest although it is always recommended that you check with your GP before combining the substances. 

Any interactions with other drugs?

There are some medications that can reduce the effectiveness of Cilest 

  • Epilepsy treatment 
  • Bosentan 
  • Anti-HIV medication 
  • Hepititas O medication 
  • Aprepitant and Fosapreptant 
  • Griseofulin 
  • Modafinil 
  • Certain sedatives 
  • St John’s Wort 
  • Charcoal 
  • Metoclopramide 
  • Colesevelam 
  • Etoricoxib 
  • Ciclosporin 
  • Lamotrigine 
  • Prednisolone 
  • Selegiline 
  • Theophyline 
  • Tizanidine 

Is there any reason why I would not be able to take Cilest?

You should not take Cilest if: 

  • You have or have ever had a blood clot 
  • You have a disorder affecting blood clotting 
  • You need an operation, or are off your feet for a long time 
  • If you have ever had a heart attack or stroke  
  • You have or have had angina pectoris 
  • If you have any disease that may increase your risk of artery clots 
  • If you have or have ever had a migraine with aura 
  • if you have breast or liver cancer 
  • You have or have had a severe liver disease 
  • If you are allergic to any of the ingredients 

Why should I take Cilest?

Cilest prevents unwanted pregnancies, but it also can help to regulate a woman’s menstrual cycle or reduce symptoms for those who suffer with PMS. Cilest can make periods lighter, regular, and less painful.   

Missed pill?

A common question asked, is “What happens if I miss a pill”? 

If you miss taking the Cilest pill, you must take the last missed tablet as soon as you remember – Even if you have to take 2 Cilest tablets at the same time. Following this, you should continue taking tablets at the usual time of day. 

If you miss the pill in the first week of taking you should also use a barrier method of contraception (e.g condom) for the next 7 days. Following the first week, it is not necessary to take further contraception measures. 

Additional information


3 Months Supply (84 Tablets), 6 Months Supply (168 Tablets)


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