Comparing Finasteride vs Flomax

View side-by-side comparisons of medication uses, ratings, cost, side effects and interactions.
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Finasteride

Flomax tamsulosin

Finasteride 5mg is effective at treating the symptoms and delaying the progression of BPH. Finasteride 1mg temporarily reverses hair loss in men with androgenetic alopecia (male pattern baldness)... View more

Flomax restores urine flow in men with BPH but may cause a drop in blood pressure when going from a sitting to a standing position. Prescribed for Benign Prostatic Hyperplasia. Flomax may also be... View more

Prescription only

Ratings & Reviews

View all 243 reviews

View all 145 reviews

Drug Class

5-alpha-reductase inhibitors

Antiadrenergic agents, peripherally acting

Side Effects

Commonly reported side effects include: impotence, and decreased libido.

See the full finasteride side effects document.

Common side effects include: dizziness, nasal congestion, paranasal sinus congestion, rhinitis, rhinorrhea, and seasonal allergic rhinitis.

See the full Flomax side effects document.

Pricing and Coupons

* Prices are without insurance

Quantity	50 each
Dosage	5 mg
Per Unit^*	$0.88 - $1.13
Cost^*	$43.99 - $56.62

View all finasteride prices

Quantity	100 capsule
Dosage	0.4 mg
Per Unit^*	$9.33
Cost^*	$933.08

View all Flomax prices and generic prices

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Generic Availability

Yes (this medicine)

Yes

Dosage Form(s) Available

Oral tablet

Oral capsule

Brand Names

Propecia, Proscar

N/A

Half Life

The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value.

7.9 hours

19 hours

CSA Schedule**

View glossary of terms.

Not a controlled drug

Is not subject to the Controlled Substances Act.

Not a controlled drug

Is not subject to the Controlled Substances Act.

Pregnancy Category

Category X Not for use in pregnancy

See the full Pregnancy Warnings document.

Category B No proven risk in humans

See the full Pregnancy Warnings document.

Drug Interactions

A total of 23 drugs are known to interact with finasteride:

22 moderate drug interactions (82 brand and generic names)
1 minor drug interactions (2 brand and generic names)

A total of 266 drugs are known to interact with Flomax:

31 major drug interactions (68 brand and generic names)
231 moderate drug interactions (923 brand and generic names)
4 minor drug interactions (13 brand and generic names)

Alcohol/Food/Lifestyle Interactions

No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider.

Food may affect the intestinal absorption of tamsulosin. You should take tamsulosin approximately... View more
Ask your doctor before using alcohol together with tamsulosin. Using alcohol with tamsulosin can... View more

Disease Interactions

First Approval Date

June 19, 1992

April 15, 1997

WADA Class

View World Anti-Doping Agency classifications.

N/A

More Information

** The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Medical Disclaimer