The generically named medication Maxrin is marketed in the United States with the brand name Flomax. It is prescribed in the treatment of BPH or benign prostatic hyperplasia, the medical term for noncancerous prostate enlargement. The drug works by making the prostate relax so it does not impinge upon the bladder. The Mayo Clinic says that Flomax does not reduce the prostate’s size, but it does improve urination. Sexual side effects of the drug are not that common 2.
If you are experiencing serious medical symptoms, seek emergency treatment immediately.
What Is Maxrin (Flomax)?
Maxrin is the generic form of the brand-name drug Flomax.
It's used to treat symptoms of an enlarged prostate, also known as benign prostatic hypertrophy (BPH).
Maxrin belongs to a group of drugs known as alpha-1 receptor blockers.
Drugs in this class work by blocking special receptors found on smooth muscle cells in the prostate known as alpha-1 receptors.
They are designed to improve urine flow.
Although commonly thought of as a medication used to treat enlarged prostate, Maxrin can also be prescribed for women who have problems with bladder blockages or obstruction to help them urinate more easily.
Doctors may also prescribe Maxrin to help the body clear or pass kidney stones.
The Food and Drug Administration (FDA) approved Maxrin hydrochloride (HCL) under the brand name Flomax in 1997.
However, the FDA has not approved Maxrin for use in women or children, although some doctors use it off-label in these patients.
What should I avoid while taking Maxrin (Flomax)?
Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired. Avoid getting up too fast from a sitting or lying position, or you may feel dizzy.
If you suspect an overdose, contact a poison control center or emergency room immediately.
You can get in touch with a poison control center at (800) 222-1222.
What is Maxrin?
Maxrin (Flomax) is an alpha-blocker that relaxes the muscles in the prostate and bladder neck, making it easier to urinate.
Maxrin is used to improve urination in men with benign prostatic hyperplasia (enlarged prostate).
Maxrin is not FDA approved for use in women or children.
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Maxrin works by relaxing the muscles around your bladder and prostate gland so that you can pass urine more easily.
Sometimes, more than one type of medicine is needed to control the symptoms of prostate enlargement. Maxrin is available in combination with other medicines for prostate enlargement. The combination brand called Combodart® contains Maxrin with a medicine called dutasteride, and the combination brand called Vesomni® contains Maxrin with a medicine called solifenacin. These brands may give better relief of symptoms than Maxrin alone.
Maxrin is also available from a pharmacy as a medicine called Flomax® Relief. The pharmacist will need to ask a number of questions about your medical history to make sure that Maxrin is suitable for you. You will also need to be diagnosed by your doctor as having an enlarged prostate gland.
What is Maxrin (Flomax)?
Maxrin is an alpha-blocker that is used to improve urination in men with benign prostatic hyperplasia (enlarged prostate).
Maxrin is not approved for use in women or children.
Maxrin may also be used for purposes not listed in this medication guide.
BPH can occur with more serious conditions such as prostate cancer. Before starting treatment with Maxrin, talk to your doctor about being screened for prostate cancer.
You will have regular checkups with your doctor. During these visits, your doctor will check whether your symptoms of BPH have improved.
There are other drugs available to treat your condition. Some may be better suited for you than others. Talk to your doctor about other options that may work for you.
How long does it take Maxrin to work?
Most people notice symptoms of BPH starting to improve within a week of taking Maxrin. This is the time it takes for the drug to build up in your body to a level that works. If urinating doesn’t get easier for you or you don’t have fewer urges to urinate within 2 weeks after starting this drug, tell your doctor. Your doctor may need to change your dosage or have you take another drug.
Healthline Medical Team Answers represent the opinions of our medical experts. All content is strictly informational and should not be considered medical advice.
Answers represent the opinions of our medical experts. All content is strictly informational and should not be considered medical advice.
- Low blood pressure warning: Maxrin can cause you to feel dizzy or cause a drop in your blood pressure when you stand up after sitting or lying down. After taking your first dose or an increased dose, be sure you’re aware of how Maxrin affects you before you perform any activity that could cause injury.
- Priapism warning: Rarely, Maxrin can cause priapism. This is a persistent, painful erection that isn’t related to sexual activity. If you have priapism, contact your doctor right away. If priapism isn’t treated, it could lead to permanent impotence (not being able to have an erection).
- Skin reactions warning: Though rare, this drug can cause severe skin reactions, including a serious condition called Stevens-Johnson syndrome. These skin reactions can cause raised welts, facial swelling, fever, and trouble breathing. See a doctor right away or call 911 if you have signs of a sudden or severe skin reaction after taking this drug.
- Intraoperative floppy iris syndrome (IFIS) warning: IFIS is a complication that can occur during surgery for cataracts or glaucoma. Although rare, this problem has been reported with people taking Maxrin. If you need to have cataract or glaucoma surgery, be sure to tell your doctor or surgeon that you’re taking Maxrin.
This drug comes with several warnings.
How to store Maxrin
- Keep all medicines out of the reach and sight of children.
- Store in a cool, dry place, away from direct heat and light.
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 Maxrin did not significantly increase stone passage rate compared with placebo for stones Enter a drug name and Maxrin