Common Use
Dydrogesterone is a highly selective synthetic progestogen widely prescribed for the treatment of various gynecological conditions caused by progesterone deficiency. When you buy Dydrogesterone online, you receive a clinically proven Duphaston generic that closely mimics the action of natural progesterone without the androgenic, estrogenic, or glucocorticoid side effects commonly associated with older progestins. Dydrogesterone is used to treat menstrual disorders including irregular periods, painful menstruation (dysmenorrhea), and premenstrual syndrome (PMS). It is a cornerstone of hormone therapy for endometriosis, where it helps suppress the abnormal growth of endometrial tissue outside the uterus. Dydrogesterone also plays a vital role in progesterone support during early pregnancy, being prescribed for threatened miscarriage and habitual (recurrent) miscarriage caused by confirmed luteal insufficiency. Additionally, it is used in hormone replacement therapy (HRT) regimens to protect the uterine lining in postmenopausal women receiving estrogen supplementation.

Dosage and Direction
The dosage of Dydrogesterone depends on the specific condition being treated and is always prescribed by a qualified healthcare provider. Tablets are taken orally, usually once or twice daily, with or without food. Common dosing guidelines include:

- Menstrual disorder and dysmenorrhea: 10 mg twice daily from day 5 to day 25 of the menstrual cycle.
- Endometriosis: 10 mg two to three times daily from day 5 to day 25, or continuously as prescribed.
- Threatened miscarriage: an initial loading dose of 40 mg, followed by 10 mg every 8 hours until symptoms resolve.
- Habitual miscarriage: 10 mg twice daily until the 20th week of pregnancy, then gradually tapered as directed.
- Progesterone support in HRT: 10 mg daily for the last 12 to 14 days of each estrogen cycle.

It is crucial to follow the exact timing and duration recommended by your doctor for optimal therapeutic results. Do not adjust your dose without medical guidance.

Precautions
Before starting Dydrogesterone hormone therapy, inform your doctor if you have a history of liver disease, depression, thromboembolic disorders (blood clots), breast cancer, or unexplained vaginal bleeding. Use during pregnancy for threatened miscarriage should only occur under close medical supervision with confirmed progesterone deficiency. Patients with a history of or risk factors for thromboembolism should be carefully evaluated before beginning treatment. Regular medical check-ups are recommended during long-term use, including breast examinations and liver function monitoring. Dydrogesterone should not be used as a contraceptive, as it does not suppress ovulation at therapeutic doses.

Contraindications
Do not use Dydrogesterone if you are allergic to dydrogesterone or any of its inactive ingredients. This progestogen is contraindicated in patients with unexplained vaginal bleeding that has not been diagnostically evaluated, known or suspected hormone-sensitive malignant tumors (such as progesterone-dependent neoplasms), severe liver dysfunction or active liver disease, acute porphyria, or a history of meningioma. Patients with active or recent arterial thromboembolic disease (such as stroke or heart attack) should also avoid this medication. Always consult your doctor before starting treatment to ensure Dydrogesterone is safe for your individual health profile.

Possible Side Effects
Common side effects of Dydrogesterone may include headache, nausea, breast tenderness or swelling, and breakthrough bleeding or spotting between periods. These effects are generally mild and often resolve as your body adjusts to the medication. Less common side effects include dizziness, bloating, skin rash, and mood changes. In rare cases, more serious reactions may occur, including allergic reactions (skin rash, itching, swelling of the face or throat), liver function abnormalities presenting as jaundice (yellowing of skin or eyes), severe abdominal pain, or hemolytic anemia. If you experience any unusual or persistent symptoms, seek medical advice promptly.

Drug Interaction
Dydrogesterone may interact with enzyme-inducing medications such as rifampicin, phenytoin, carbamazepine, and phenobarbital, which can accelerate the metabolism of dydrogesterone and reduce its therapeutic effectiveness. The antiretroviral drugs ritonavir and nelfinavir, though known as strong enzyme inhibitors, may also affect dydrogesterone levels. Herbal supplements containing St. John's Wort (Hypericum perforatum) may similarly reduce the progestogen's effectiveness. Always inform your doctor about all prescription medications, over-the-counter drugs, and herbal supplements you are taking. Avoid alcohol during treatment unless specifically approved by your physician, as it may exacerbate certain side effects.

Missed Dose
If you miss a dose of Dydrogesterone, take it as soon as you remember. If it is close to your next scheduled dose, skip the missed one and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one, as this will not improve effectiveness and may increase the risk of side effects. If you are taking Dydrogesterone for threatened miscarriage or progesterone support, contact your doctor for specific guidance on missed doses, as consistent dosing is particularly important in these situations.

Overdose
Dydrogesterone overdose is rare due to its favorable safety profile, but symptoms may include nausea, vomiting, drowsiness, or dizziness. If an overdose is suspected, seek immediate medical attention. There is no specific antidote for dydrogesterone overdose, and treatment is generally symptomatic and supportive. Gastric lavage may be considered if the overdose was recent and the patient presents within one hour of ingestion.

Storage
Store Dydrogesterone tablets at room temperature between 15°C and 25°C (59°F to 77°F), away from heat, moisture, and direct sunlight. Keep the medication in its original packaging, tightly sealed, and out of reach of children and pets. Do not use after the expiry date printed on the box or blister pack. Dispose of expired medication responsibly according to local pharmacy guidelines.

Disclaimer
We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.