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Marvelon is a type of oral contraceptive pill. It works by over-riding a normal menstrual cycle. The daily dose of hormones taken in the pill work mainly by deceiving one’s body into thinking that ovulation has already happened. Therefore the egg does not ripen and cannot be inseminated. This medication also increases the thickness of the natural mucus at the neck of the womb, making it more tricky for sperm to reach an egg. It has been proven to be very effective when it comes to preventing pregnancy.


This medicine should not be taken by anyone who may be pregnant, has or has had thrombophlebitis or thromboembolic disorders, cerebrovascular disorders (e.g., stroke), a liver disease, liver tumors, breast cancer, heart attack, atypical vaginal bleeding, vascular disease of the eye, coronay artery disease, etc.


Women using his drug may have an increase in the risk of having breast and cervical cancer. Also, the risk of blood clots increases as one begins taking the pill. This risk is even greater in women that are passionate smokers or alcoholics. The pill may also cause menstrual irregularities.

Marvelon and other medications

Women with diabetes may require small adjustments in the dosage of insulin while using this contraceptive. If one is taking antibiotics while on this contraceptive, it may make them less efficient at preventing pregnancy. Some drugs, such as ritonavir, aprepitant, bosentan, nelfinavir, etc. or anti-epileptic medicines should never be taken with this contraceptive, because they significantly lessen the effectiveness of it, and, more often than not, completely stopping it.


As for so many prescription drugs, and for this one there are a number of side-effects. Common side-effects of marvelon include: abdominal cramping or bloating, vomiting, acne (usually less common after three months of treatment, and may improve if acne already exists), dizziness, nausea, breast pain, tenderness, swelling of ankles and feet, weight changes, unusual exhaustion or weakness, etc.

Less common side-effects include: increased sensitivity to sunlight, blood clots, menstrual spotting or breakthrough bleeding, increased or decreased interest in sexual intercourse, disturbance in liver function, brown, blotchy spots on the skin, gain or loss of body hair, depression, etc.

Of course, one should always consult their physician, whenever one experiences anything unusual, or some of the listed side-effects. The doctor may then prescribe another medication that may be more suitable for the person in question. These side-effects depend on the individual, and while some may experience them, other may have no problems whatsoever.

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