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Finasteride is a medication which is given in case of an enlarged prostate. The enlarged prostate may cause many problems with urination, such as difficulty to start urinating, frequent urge to urinate and weak flow. Finasteride can also prevent the prostate cancer and baldness.


Finasteride is not intended for women and children. If a pregnant woman takes this medication, it may cause serious harm to the baby. You should visit your doctor on regular basis while you are taking Finasteride because it has different effect in various cases. Some men notice improvement soon after they start the treatment with this medication, while others may need a whole year to feel any better. Make sure your doctor knows about any allergies and about any other medical problem.

Common Side Effects

Most patients tolerate Finasteride very well, but there are certain side effects which are associated with this medication. The most common side effects of Finasteride include pain in the testis, enlargement of the breasts, tenderness or lumps in the breasts, and discharge from the nipples. These side effects are not considered dangerous if they are temporary or mild, but if they turn out to be severe or persistent, contact your doctor as soon as possible. Some of the other side effects of Finasteride are reduced interest in sex, inability to achieve an erection and less amount of ejaculated semen. You may also experience headache pain in the abdomen and nausea. In case of an allergic reaction, call your doctor immediately and stop taking the medication. Allergic reactions may include irritation of the skin, itchiness, rash, swelling of the tongue, mouth or face, tension in the chest, and breathing difficulties.

Classification of Side Effects

Side effects of Finasteride can be classified according to the affected part of the body. Genitourinary side effects include problems with ejaculation, impotence, pain in the testicles and breast enlargement. Endocrine side effects refer to decreased levels of prostate-specific antigen. Side effects which include the nervous system include dizziness, drowsiness and decreased interest in sex. Cardiovascular side effects of Finasteride include irregular heartbeat. Gastrointestinal side effects involve nausea and gases. Dermatologic side effects refer to skin problems caused by Finasteride. Such side effects include rash, itchiness and lumps on the skin. Respiratory side effects include breathing difficulties and stuffy nose. General side effects refer to problems such as pain in the abdomen, headache, dizziness and weakness. Hypersensitivity reactions include swelling of the face or tongue.

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