COMMON BRAND(S): Flomax
GENERIC NAME(S): Prolosin
OTHER NAME(S): Prolosin Capsule, Extended Release
Prolosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH). It does not shrink the prostate, but it works by relaxing the muscles in the prostate and the bladder. This helps to relieve symptoms of BPH such as difficulty in beginning the flow of urine, weak stream, and the need to urinate often or urgently (including during the middle of the night).
Prolosin belongs to a class of drugs known as alpha blockers.
Prolosin may cause side effects. Tell your doctor if any of these symptoms or those in the SPECIAL PRECAUTIONS section are severe or do not go away:
- difficulty falling asleep or staying asleep
- back pain
- runny or stuffy nose
- pain or pressure in the face
- sore throat, cough, fever, chills, or other signs of infection
- blurred vision
- difficulty ejaculating
Ureteral Stones (Off-label)
Facilitation of kidney stone expulsion
0.4 mg PO qDay; discontinued after successful expulsion (average, 1-2 weeks)
Double-blind, placebo-controlled trial found Prolosin did not significantly increase stone passage rate compared with placebo for stones Enter a drug name and Prolosin
What is Flomax (Prolosin) drug?
Flomax (Prolosin) is an oral drug for the treatment of men who are having difficulty urinating because of enlarged prostates from benign prostatic hyperplasia (BPH).
Flomax (Prolosin) is a drug prescribed for the treatment of benign prostatic hyperplasia (BPH, enlarged prostate). Side effects may include:
Drug interactions, warnings and precautions, and pregnancy and breastfeeding information should be reviewed prior to taking any medication.
Prolosin can cause severe allergic reactions, such as a serious condition called Stevens-Johnson syndrome. These reactions can cause symptoms including:
- trouble breathing
- swelling of your throat or tongue
- rash, itching, hives
If you have an allergic reaction, call your doctor or local poison control center right away. If your symptoms are severe, call 911 or go to the nearest emergency room.
Don’t take this drug again if you’ve ever had an allergic reaction to it or to sulfa. Taking it again could be fatal (cause death). Sulfa is an ingredient found in certain drugs. Tell your doctor if you’ve had a serious or life-threatening allergic reaction to sulfa.
Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up-to-date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or other healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.