Dydrogesterone is a synthetic progestogen medication used to treat menstrual disorders and support hormonal health.
Dydrogesterone is a synthetic hormone that mimics the activity of natural progesterone. It belongs to the class of progestogens, which are used to support the normal function of the female reproductive system. In Hong Kong, dydrogesterone is an approved active ingredient found in several prescription products.
The two most common medicines that contain dydrogesterone are Duphaston and generic Dydrogesterone tablets. Both are supplied in oral tablet form, typically in strengths of 5 mg and 10 mg. While Duphaston is a well-known brand name, the generic version is marketed by several manufacturers and may appear under the simple name “Dydrogesterone.” All of these products are regulated by the Hong Kong Department of Health and are available only with a prescription from a qualified practitioner.
Dydrogesterone is used in the management of several hormone-related conditions:
These uses reflect the ways the hormone supports the lining of the uterus and the hormonal balance required for a normal menstrual cycle. The specific indication for each medication is listed on its product label.
When taken, dydrogesterone binds to progesterone receptors in the body, producing a hormonal effect similar to that of natural progesterone. This action helps thicken the uterine lining, making it more suitable for implantation of a fertilised egg and for maintaining early pregnancy. It also works to counteract the effects of excess estrogen, which can lead to irregular bleeding or endometrial over-growth. The hormone’s influence begins within a few days of starting therapy, although the full therapeutic effect depends on the condition being addressed.
Mild and temporary side effects are reported by many people using dydrogesterone medications. These may include:
These symptoms usually resolve on their own and do not require medical intervention.
Although rare, some reactions need urgent attention:
If any of these occur, immediate medical care is essential.
Certain groups should discuss the use of dydrogesterone with a health professional before starting therapy:
Allergy to dydrogesterone or any of its excipients is a contraindication.
Dydrogesterone may interact with other drug classes and substances:
Lifestyle factors such as driving or operating machinery should be approached with caution until individual tolerance is known. For a full list of possible interactions, refer to the specific medication’s information sheet.
Store tablets in a dry place away from direct sunlight and keep them out of reach of children. Most dydrogesterone products are intended for short-term courses, but the exact duration depends on the underlying condition and the prescribing doctor’s plan. Because formulations and strengths differ between Duphaston and generic dydrogesterone, always follow the instructions that accompany the particular product you have. For detailed usage, dosing, and administration, refer to the labeling of your specific medication.
This article offers general educational information about dydrogesterone as an active substance used in various medicines. Its purpose is to help patients better understand the ingredient and the conditions it is used to treat. It is not a substitute for professional medical advice or for the specific instructions provided with individual products. Medicines containing dydrogesterone may differ in formulation, strength, and directions for use. Always consult the labeling of your particular medication and follow your healthcare provider’s guidance for complete information on proper use, dosage, and safety.
