Progesterone

Key points

• Recreates the hormone the ovaries would normally produce, helping ready the uterus for pregnancy or sustain a cycle.
• Prescribed for irregular periods and as part of hormone replacement therapy after menopause.
• Comes as a soft capsule under the brand Prometrium, alongside a generic formulation for continued use.

What is Progesterone?

Synthetic or micronised progesterone serves to mimic the natural hormone produced by the ovaries. It plays a foundational role in the reproductive system and is frequently utilised to manage issues arising from low levels of this hormone. Because individual needs vary, different brands like Utrogestan are available to provide reliable dosing and stability.

What Progesterone is used for

Progesterone is primarily indicated for managing menstrual irregularities and as part of Hormone Replacement Therapy in postmenopausal women. It is a core component in many strategies within Women’s Health to restore regular cycles or provide support during hormone-sensitive phases of life.

How does Progesterone work?

Progesterone acts by binding to specific receptors in the uterus and other tissues. It works to thicken the lining of the womb to prepare it for pregnancy or maintain its state until a cycle begins. By stabilising these internal environments, it provides stability to counteract the effects of uncontrolled oestrogen exposure.

Progesterone brands and forms

While Prometrium is a well-known brand, various generic options exist to ensure continuous access to treatment. Soft capsules are the primary form used, as they allow for consistent absorption into the bloodstream. Many patients choose these formulations to maintain compliance with the administration routine recommended by their healthcare provider.

Safety overview for Progesterone

What to check before using this medicine

Discuss your complete medical history with your provider, particularly if you have a history of blood clots, liver disease, or unexplained vaginal bleeding. Ensure that your current treatment goal aligns with your intended use of the medication.

Possible reactions and tolerability

Some individuals may experience mild side effects such as drowsiness, dizziness, or breast tenderness. These reactions are typically temporary, though persistent discomfort should be monitored.

Interactions and health factors

Progesterone may interact with other medications or herbal preparations. Full disclosure of your current medication list to your healthcare provider is necessary before beginning this treatment. Product labelling and verified clinical sources remain the correct references for specific contraindications, interactions and reactions.

Further reading

• Hormone replacement therapy (HRT) - NHS
• Progesterone: Natural Function, Levels & Side Effects