Harmonet

Harmonet is a combined oral contraceptive tablet that contains the synthetic estrogen ethinylestradiol and the progestogen gestodene. It is marketed in the European Union and is available by prescription only. The product is formulated for oral administration and is intended to provide reliable contraception through hormonal regulation of the menstrual cycle. It works by suppressing ovulation and altering cervical mucus, thereby reducing the chance of fertilization.

Harmonet is prescribed primarily for the prevention of pregnancy and is used as a regular, daily oral contraceptive.

- Prevents unintended pregnancy when taken as directed. - Provides cycle control and reduces menstrual bleeding. - May be used to manage symptoms of dysmenorrhea. - Can be part of hormone‑replacement strategies under specialist supervision. - May improve acne associated with hormonal fluctuations.

Like all combined hormonal contraceptives, Harmonet may cause side effects that vary in frequency and severity.

Common: - Nausea or mild gastrointestinal upset. - Breast tenderness or enlargement. - Headache or migraine. - Spotting or breakthrough bleeding between periods. - Mood changes or mild irritability. - Decreased libido.

Serious: - Deep vein thrombosis or pulmonary embolism. - Arterial thrombosis leading to stroke or myocardial infarction. - Severe hypertension. - Liver dysfunction or cholestatic jaundice. - Allergic reactions such as rash or angioedema.

Before starting Harmonet, certain health considerations should be reviewed to ensure safe use.

- Do not use if you are a smoker aged 35 years or older. - Avoid if you have a history of blood clots, stroke, or myocardial infarction. - Caution in patients with liver disease or impaired liver function. - Use carefully if you experience migraine with aura. - Monitor blood pressure regularly, especially if you have hypertension. - Discuss any current or past breast cancer with your healthcare provider. - Confirm you are not pregnant before initiating therapy.

Harmonet can interact with other medicines, affecting its effectiveness or increasing risk of adverse events.

Avoid: - Enzyme‑inducing anticonvulsants (e.g., carbamazepine, phenytoin). - Rifampicin and other potent hepatic enzyme inducers. - St. John’s wort herbal supplement. - Certain antibiotics such as griseofulvin. - HIV protease inhibitors that alter hormone metabolism.

Use with caution: - Antihypertensive agents, as hormonal changes may affect blood pressure control. - Diuretics, which may influence electrolyte balance. - Lithium, due to potential changes in serum lithium levels. - Other antiepileptic drugs that are not strong inducers. - Selective serotonin reuptake inhibitors (SSRIs) that may increase the risk of mood changes.