Aygestin

Norethindrone

Designed to address hormonal imbalance, this medicine is indicated for menstrual health and developed to support natural reproductive cycles.

Active ingredient
Norethindrone
Supply
Pharmacy
Route
Oral use
Form
Tablet
Strengths
5mg

Aygestin details

Alternative names
Primolut N; Utovlan
Therapeutic class
Progestogen
Pharmacological class
Progestogen
Known off-label uses
amenorrhoea
Contraindications
thromboembolic disorder; pregnancy; liver disease
Precautions and warnings
monitor for signs of blood clots; report visual disturbances
Minor side effects
headache; nausea
Moderate side effects
irregular menstruation; breast tenderness; weight gain
Dosage forms
Tablet
Administration route
Oral use
Supply category
Pharmacist only, dispensed without a prescription
Manufacturer
Bayer
Onset Time
1–2 hours
Duration
24 hours
Storage instructions
Keep away from light and excessive heat.
Drug interactions
rifampicin; st. john's wort
Age restrictions
Not for paediatric use.
Pregnancy and breastfeeding
Contraindicated; exclude pregnancy before starting.
Serious side effects

venous thromboembolism, requires immediate medical attention; cerebral thrombosis, requires immediate medical attention

Patient summary

Designed to address hormonal imbalance, this medicine is indicated for menstrual health and developed to support natural reproductive cycles.

Mechanism of action

This medication is a synthetic progestogen. It mimics the natural hormone progesterone, creating a feedback mechanism on the hypothalamic-pituitary-ovarian axis to suppress ovulation and stabilize the endometrial lining.

Where this medicine is registered

  • Singapore
  • Hong Kong
  • Thailand
  • Malaysia
  • Philippines
  • Indonesia
  • Taiwan
  • South Korea
  • Japan
  • Australia
  • New Zealand
  • UAE
  • South Africa

About Aygestin

Aygestin featuring norethindrone helps treat conditions like endometriosis and abnormal uterine bleeding. The same active ingredient is also sold under other brand names such as Primolut N and Utovlan, provided as a tablet in a 5mg strength. This medication supports hormonal regulation for users who require consistent management of their reproductive health.

Buying Aygestin online

Aygestin is registered across 13 markets including the Philippines, Indonesia and Taiwan, with availability also in South Korea, Japan and the UAE. Generic norethindrone, much of it made in India, is far more affordable than the original Bayer brand. For expats and people living far from a fully stocked pharmacy, ordering online provides a straightforward way to access these medications across the region.