Medroxyprogesterone is not approved for emergency contraception. Post-coital contraceptive options in the UK include levonorgestrel or ulipristal acetate pills, which have specific dosing schedules and proven efficacy.
Breakthrough bleeding is common during the first few cycles. If it persists beyond three months or is unusually heavy, contact your prescriber for possible dose adjustment or investigation of other causes.
Yes, provided you keep the medication in its original packaging, store it at room temperature, and carry a copy of the prescription. Some countries may require proof of prescription at customs, so a pharmacist’s note can be helpful.
Both are synthetic progestogens, but they differ in receptor affinity, half-life, and side-effect profiles. Medroxyprogesterone generally has a slightly longer half-life and may produce more pronounced anti-estrogenic effects, which can influence the choice of therapy based on patient-specific factors.
Migraine with aura is a relative contraindication because progestogens can increase clotting risk. If you experience migraines without aura, discuss with your doctor; they may still prescribe the medication with close monitoring.
Progestogens can modestly influence lipid profiles, potentially lowering HDL cholesterol and raising LDL cholesterol. Routine lipid monitoring is advised for patients with existing dyslipidaemia or cardiovascular risk factors.
Baseline liver function tests are recommended, and periodic monitoring may be warranted for patients with pre-existing liver disease, hypertension, or clotting risk. Otherwise, routine blood work is not mandatory.
Yes, after completing the final active pill of a combined pill pack, you can start a medroxyprogesterone regimen. A short overlap (e.g., 7 days of combined pill) may be advised to ensure continuous contraceptive coverage.
Keep the medication in a cool, dry place away from direct sunlight. If ambient temperatures exceed 30 °C for prolonged periods, store the tablets in a refrigerator (2-8 °C) in a sealed container, then allow them to reach room temperature before ingestion.
Medroxyprogesterone belongs to the women’s-health therapeutic class and is available as an oral pill. In the United Kingdom it is a prescription-only medicine marketed under its generic name. The medication is supplied in two strengths-5 mg and 10 mg tablets. It is a synthetic progestogen used primarily for hormonal contraception and for the management of various menstrual-related conditions.
Medroxyprogesterone mimics the activity of the natural hormone progesterone. After oral administration it is absorbed into the bloodstream and binds to progesterone receptors in target tissues such as the uterus, breast, and hypothalamus. The key actions are:
These mechanisms together underpin its use for contraception and for conditions where estrogen dominance or irregular bleeding is a concern.
In the UK, medroxyprogesterone is approved for the following indications:
The drug is prescribed after a clinical assessment to confirm that the patient meets the criteria for these uses.
Absolute contraindications
Relative contraindications
These effects are usually transient and may lessen after the first few cycles.
Any sign of a serious event warrants immediate medical attention.
Patients should disclose all current medications, including over-the-counter drugs and herbal supplements.
Standard dosing:
5 mg tablet: Often prescribed for short-course treatment of menstrual irregularities (e.g., 5 mg daily for 5-10 days each cycle).
10 mg tablet: Commonly used in cyclic contraception - 10 mg taken once daily for the first 10 days of a 28-day cycle, followed by a pill-free interval.
Special populations:
Renal or hepatic impairment: No routine dose reduction is required, but clinicians may choose the lower 5 mg dose and monitor liver function.
Elderly patients: Start with the lowest effective dose (5 mg) and assess tolerance.
Administration tips: Swallow the tablet whole with a glass of water. Do not crush or split unless instructed by a pharmacist.
Missed dose: If a dose is missed and the next scheduled dose is more than 12 hours away, take the missed tablet as soon as remembered. Do not double-dose.
Overdose: Symptoms may include severe nausea, vomiting, dizziness, or fainting. Seek urgent medical care; supportive care is the main treatment.
Discontinuation: Stopping the drug may lead to withdrawal bleeding. No tapering is required, but a follow-up visit is advisable to discuss alternative contraception or therapeutic options.
Patients should contact their healthcare provider if they experience prolonged heavy bleeding, signs of thrombosis, or severe side effects.
This article provides educational information about medroxyprogesterone and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.
