Fincar 5mg (Finasteride)

What Is Fincar 5mg?

Fincar 5 mg is a prescription medication used to treat benign prostatic hyperplasia (BPH) and male pattern baldness in men. Each tablet contains 5 mg of finasteride, a type II 5-alpha reductase inhibitor that reduces prostate size, improves urinary function, and promotes hair regrowth by lowering dihydrotestosterone (DHT) levels in the body. Fincar 5 mg works by inhibiting the enzyme responsible for converting testosterone into DHT. Fincar tablets are formulated as film-coated tablets for once-daily oral use. Each tablet is designed for men aged 18 years and older and should be swallowed whole with water. The formulation combines finasteride with excipients like lactose monohydrate and microcrystalline cellulose, which enhance tablet stability and absorption.

What Is Fincar 5mg Used For?

Fincar 5 mg is used to treat benign prostatic hyperplasia (BPH) and male pattern baldness (androgenic alopecia) in men. The medicine contains finasteride 5 mg, a clinically proven type II 5-alpha reductase inhibitor that blocks the conversion of testosterone to dihydrotestosterone (DHT). DHT is the primary hormone responsible for both prostate enlargement and hair loss. By lowering DHT levels, Fincar 5 mg helps reduce prostate size, improve urinary symptoms, and slow or reverse hair thinning in genetically predisposed men.

Fincar 5 mg is primarily indicated for the treatment of benign prostatic hyperplasia (BPH). The medication works by shrinking the enlarged prostate gland, thereby improving urinary flow and relieving lower urinary tract symptoms associated with BPH. These symptoms include weak urine stream, frequent urination, nocturia (nighttime urination), urinary urgency, and difficulty starting or stopping urination. Fincar 5 mg is also used off-label to treat male pattern baldness (androgenic alopecia). Male pattern baldness occurs when DHT causes the gradual miniaturization of scalp hair follicles, leading to thinner and weaker hair growth. 

Fincar 5 mg provides a cost-effective alternative for men who require finasteride treatment for both BPH and hair loss. Men with mild to moderate androgenic alopecia benefit most when treatment begins early in the hair loss process, as Fincar slows follicular miniaturization and maintains existing hair. The medication’s dual therapeutic action makes it particularly useful for patients managing both prostate enlargement and scalp hair thinning.

How Does Fincar 5mg Work?

Fincar 5 mg works by blocking the enzyme that converts testosterone into dihydrotestosterone (DHT), the main hormone responsible for prostate enlargement and hair loss. The medicine contains finasteride, a selective type II 5-alpha reductase inhibitor that targets the hormonal pathway driving both benign prostatic hyperplasia (BPH) and androgenic alopecia (male pattern baldness). By inhibiting this enzyme, Fincar prevents the formation of DHT in key tissues such as the prostate and scalp, leading to reduced prostate volume and improved hair growth.

Finasteride in Fincar 5 mg acts as a competitive inhibitor of the type II 5-alpha reductase enzyme. Under normal conditions, this enzyme converts testosterone into dihydrotestosterone (DHT), a potent androgen that binds to androgen receptors in prostate and hair follicle cells. In men with BPH, excess DHT stimulates prostate cell proliferation, resulting in gland enlargement and urinary obstruction. In men with androgenic alopecia, DHT causes hair follicle miniaturization, leading to thinning hair and progressive baldness. Finasteride binds to the enzyme’s active site, preventing testosterone from interacting with it. This direct inhibition effectively shuts down DHT synthesis, addressing the root cause of both conditions.

Fincar 5 mg rapidly and significantly reduces DHT levels throughout the body. Within 24 hours of the first oral dose, finasteride lowers serum DHT levels by about 65%, and continued daily use maintains suppression. In the prostate gland, DHT concentrations fall by 80–90%, leading to decreased gland volume and symptom relief. In the scalp, DHT levels drop by over 60%, halting follicle miniaturization and stimulating regrowth. These effects directly improve urinary function in BPH and promote hair restoration in androgenic alopecia.

Fincar 5 mg is highly selective for type II 5-alpha reductase, minimizing unwanted systemic effects. Finasteride demonstrates 100-fold greater selectivity for the type II isoenzyme compared to type I, meaning its action is concentrated in target tissues such as the prostate and hair follicles. The drug does not bind to androgen receptors or interfere with other hormonal pathways, producing no androgenic, antiandrogenic, estrogenic, or progestational activity. 

What Is The Recommended Dosage Of Fincar 5mg?

Fincar 5mg is prescribed once daily, with dosage depending on the treatment condition. Fincar 5mg tablets can be taken with or without food. The medicine should be swallowed whole with water, not crushed or cut, to maintain its absorption rate and effectiveness. There is no strict requirement for the time of administration, but taking it at the same time each day helps sustain consistent plasma levels. This routine improves adherence and ensures steady inhibition of DHT production.

What Are The Side Effects Of Fincar 5mg?

Fincar 5mg is generally well-tolerated, but some men may experience sexual, allergic, dermatological, or hormonal side effects.

Sexual and Reproductive:

• Erectile dysfunction
• Decreased libido
• Ejaculatory dysfunction
• Reduced semen volume
• Orgasm difficulties

Allergic Reactions:

• Skin rash or itching
• Flushing of the skin
• Swelling of eyelids, lips, hands, or feet
• Swelling of the mouth, tongue, or throat

Dermatological:

• Maculopapular rash
• Photosensitivity reactions
• Scaling erythematous macules

Breast-Related:

• Breast tenderness
• Breast enlargement
• Nipple discharge
• Lumps or swelling in the chest

Other Reported Effects:

• Depression
• Mood changes
• Fatigue
• Testicular discomfort

What Are The Drug Interactions Of Fincar 5mg?

Below is a list of drugs that can potentially interact with Fincar 5mg.

• Acetaminophen and acetylsalicylic acid
• Nonsteroidal anti-inflammatory agents (NSAIDs) such as ibuprofen
• Alpha-blockers
• Analgesics
• Angiotensin-converting enzyme (ACE) inhibitors
• Anticonvulsants
• Benzodiazepines
• Beta-blockers
• Calcium-channel blockers
• Cardiac nitrates
• Diuretics
• H2 receptor antagonists
• HMG-CoA reductase inhibitors
• Quinolone anti-infectives

All of these medications have been used concurrently with finasteride in clinical studies without evidence of clinically significant adverse interactions.​ If you are taking finasteride in combination with other medications for erectile dysfunction (such as tadalafil), you should not take medications containing nitrates, as this combination can cause serious drops in blood pressure.​

How Should Fincar 5mg Be Stored?

• Store Fincar 5mg at room temperature between 59°F and 86°F (15°C and 30°C).
• Keep finasteride away from moist or damp environments. 
• Do not store this medication in bathrooms, as bathrooms have high humidity levels that can degrade the medication. 
• Store your medication away from direct light and high temperatures to prevent degradation.​
• Keep tablets in their original blister packaging. 
• Keep Fincar 5mg out of reach of children and pets