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Side Effects > Dutasteride

Dutasteride Side Effects

Brand Names: Avodart

Please note - some side effects for Dutasteride may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).


Side Effects of Dutasteride - for the Consumer

Dutasteride

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Dutasteride:

Breast enlargement and/or tenderness; decreased sex drive; decreased volume of ejaculate; inability to have an erection.

Seek medical attention right away if any of these SEVERE side effects occur when using Dutasteride:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness).

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Side Effects by Body System

General

In general, side effects have been mild and transient.

Genitourinary

The incidence of sexual adverse events has been reported to decrease with duration of treatment. After the first 6 months of treatment, the incidence of onset of impotence, decreased libido, ejaculation disorders, or gynecomastia was less than 1%. The adverse event profile for one two year study (n=677) reported that the onset of drug-related events was lower during the second year of treatment compared with the first , except for gynecomastia which was reported at 1% during the first year and 2 % during the second year.

Genitourinary side effects including impotence (up to 4.7%), decreased libido (up to 3.0%), ejaculation disorders (up to 1.4%), and gynecomastia (up to 1.1%) have been reported.

Hypersensitivity

Hypersensitivity side effects have been reported including allergic reactions such as angioedema, rash, pruritus, urticaria, and localized edema. Serious skin reactions have been reported during postmarketing experience.

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More resources:

Drugs.com Avodart

PDR Dutasteride

MedFacts Dutasteride

Micromedex Dutasteride - Includes detailed dosage instructions.

FDA Avodart

Facts & Comparisons Dutasteride

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