Omnexel capsules


  • Active Ingredient: Tamsulosin
  • 0.4 mg, 0.2 mg
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What is Omnexel?

The active ingredient of Omnexel brand is tamsulosin. Tamsulosin is an alpha-blocker that relaxes the muscles in the prostate and bladder neck, making it easier to urinate. Each Tamsulosin hydrochloride capsule, USP for oral administration contains Tamsulosin hydrochloride 0.4 mg. In addition each capsule contains the following inactive ingredients: colloidal silicon dioxide, methacrylic acid copolymer, microcrystalline cellulose, polyacrylate dispersion, polysorbate 80, sodium lauryl sulfate and talc. The capsule shell consists of FD&C Blue # 2, gelatin, iron oxide red, iron oxide yellow and titanium dioxide. The capsule is printed with black pharmaceutical ink which is made of iron oxide black, propylene glycol and shellac. USP dissolution test 7 used.

Used for

Omnexel is used to treat diseases such as: Benign Prostatic Hyperplasia, Overactive Bladder, Urinary Tract Stones.

Side Effect

Possible side effects of Omnexel include: Constipation; sleepiness or unusual drowsiness; sensation of spinning; increased cough; difficult or labored breathing; Dizziness or lightheadedness; back pain.

How to Buy Omnexel capsules online?

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Can Omnexel cause problems?

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with Omnexel. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

What are the side effects of Flomax (Omnexel)?

The most common adverse effects of Flomax are

Other side effects include

More serious side effects of Flomax

The following have been observed in male patients during Flomax treatment:

  • orthostatic hypotension (low blood pressure when rising from sitting or lying down position),
  • priapism (prolonged erection), and an eye problem called intraoperative floppy iris syndrome (IFIS).

Omnexel S >

Headache is the most common side effect of taking Omnexel. Other common side effects include:

  • Dizziness upon standing due to a sudden drop in blood pressure
  • Runny nose
  • Problems with ejaculation
  • Dizziness
  • Joint pain
  • Infection
  • Decreased sex drive

Serious side effects of Omnexel include:

  • Back pain
  • Sore throat
  • Cough
  • Bitter taste in the mouth
  • An eye condition while undergoing cataract surgery known as floppy iris syndrome
  • Other visual problems

Priapism, a painful and potentially dangerous condition in which an erection lasts for hours, is a rare side effect found in men taking Omnexel.

The medication may also cause vomiting or constipation.

Rated Omnexel (Flomax) for Enlarged prostate Report

I'm a male with Interstitial Cystitis, and have flare ups a few times a year. As soon as I take Flomax, my symptoms (burning after sex, pain in pelvic area, increased urge to urinate) subside with just one 0.4 mg dose/day. Side effects: Stuffy nose, aching upper back teeth, more overall itchy than usual, slightly more hyped up (makes hard to sleep if taken at night) for the first 4-8 hours after dose taken. Smaller doses (.2 mg) have less side effects and I still have relief from pelvic pain.

Before taking Omnexel

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking Omnexel it is important that your doctor or pharmacist knows:

  • If you ever feel dizzy or faint when you stand up, or if you have ever fainted after passing urine.
  • If you need to have cataract eye surgery.
  • If you have any problems with the way your liver works, or any problems with the way your k >

What Is Omnexel and How Does It Work?

Omnexel 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).

Omnexel belongs to a class of drugs known as alpha-blockers.

Omnexel is available under the following different brand names: Flomax.

Dosage of Omnexel:

Dosage Forms and Strengths

Dosing Consideraations – Should be Given as Follows:

  • 0.4 mg orally once daily, 30 minutes after same meal each day; if response is inadequate after 2-4 weeks, may be increased to 0.8 mg once daily; if therapy is interrupted, should be resumed at 0.4 mg once daily

Relief of symptoms

  • 0.4 mg orally once daily

Facilitation of stone expulsion

  • 0.4 mg orally once daily; discontinued after successful expulsion (average, 1-2 weeks)

  • CrCl 10 mL/min or greater: Dosage adjustment not necessary
  • CrCl less than 10 mL/min: Not studied

  • Mild to moderate: Dosage adjustment not necessary
  • Severe: Not studied
  • Pediatric: Safety and efficacy not established

    • In men, the tube which carries urine from the bladder through the penis (called the urethra) passes through the prostate gland. As men get older, the prostate gland enlarges, and the muscle cells within the prostate gland and the neck of the bladder (which controls the flow of urine) tighten. The combination of enlargement and tightening of muscles compresses the urethra and obstructs the flow of urine. This results in difficulty urinating and retention of urine within the bladder. The tightening or contraction of the muscle cells is controlled by nerves. One type of nerve, the alpha adrenergic nerves, cause the muscle cells to tighten by releasing a chemical related to epinephrine (adrenalin). Omnexel blocks the effects of this chemical on the muscle cells and causes the muscles to relax. This results in a decrease in obstruction to the flow of urine.
    • There are other drugs that block alpha adrenergic nerves throughout the body and which are used in treating diseases of the heart, blood vessels, and prostate for example, prazosin (Minipress), terazosin (Hytrin), doxazosin (Cardura), and alfuzosin (Uroxatral). Omnexel is more active against the alpha adrenergic nerves of the prostate and bladder neck than these other drugs and has a lesser effect on alpha adrenergic nerves elsewhere in the body. For this reason, Omnexel causes fewer side effects, especially low blood pressure, than other alpha adrenergic blocking drugs. Moreover, Omnexel therapy can be started at the optimum dose whereas other alpha adrenergic blocking drugs need to be started at low doses with the doses slowly increased over time in order to minimize the side effects.

    Omnexel Warnings

    People who have very serious kidney problems should not take Omnexel. You should also not take Omnexel if you:

    • Have coronary artery disease (CAD), unless your doctor recommends the drug
    • Have liver disease
    • Are about to have surgery and be given anesthesia
    • Tend to become lightheaded upon standing
    • Suffer from painful erections for unusually long periods of time (priapism)

    Additionally, people who take Omnexel for the first time may feel faint or pass out.

    This usually subsides shortly after taking the medication.


    You should not use Omnexel if you are allergic to it. Do not take Omnexel together with similar medicines such as alfuzosin (Uroxatral), doxazosin (Cardura), prazosin (Minipress), silodosin (Rapaflo), or terazosin (Hytrin).

    To make sure Omnexel is safe for you, tell your doctor if you have:

    • liver or kidney disease;
    • a history of prostate cancer;
    • low blood pressure; or
    • an allergy to sulfa drugs.

    Omnexel can affect your pupils during cataract surgery. Tell your eye surgeon ahead of time that you are using this medicine. Do not stop using Omnexel before surgery unless your surgeon tells you to.

    Although this medicine is not for use in women, Omnexel is not expected to harm an unborn baby. If you are a woman using this medication, tell your doctor if you are pregnant or breast-feeding.

    This medicine is not approved for use by anyone younger than 18 years old.

    What Are Side Effects Associated with Using Omnexel?

    Common Side effects of Omnexel include:

    Postmarketing side effects of Omnexel reported include:

    • Prolonged erection (rare)
    • Signs and symptoms of low blood pressure, including lightheadedness and fainting
    • Infrequent reports of shortness of breath, palpitations, low blood pressure (hypotension), atrial fibrillation, irregular heartbeat (arrhythmia), and fast heart rate
    • Visual impairment
    • During cataract and glaucomasurgery, a variant of small pupilsyndrome known as Intraoperative Floppy Iris Syndrome (IFIS) has been reported in association with alpha1 blocker therapy
    • Skin desquamation including reports of Stevens-Johnson syndrome, erythema multiforme, and dermatitis exfoliative
    • Constipation, vomiting, and epistaxis
    • Allergic-type reaction (e.g., skin rash, hives, itching, skin swelling, respiratory symptoms) have been reported with positive re-challenge
    • Dry mouth

    This document does not contain all possible side effects and others may occur. Check with your physician for additional information about side effects.

    Omnexel 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:

    • sleepiness
    • difficulty falling asleep or staying asleep
    • weakness
    • back pain
    • diarrhea
    • runny or stuffy nose
    • pain or pressure in the face
    • sore throat, cough, fever, chills, or other signs of infection
    • blurred vision
    • difficulty ejaculating

    How it works

    Omnexel belongs to a class of drugs called alpha-adrenergic blockers. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions.

    Omnexel works by relaxing the muscles in your bladder and prostate. This helps improve the flow of your urine.

    Omnexel oral capsule doesn’t cause drowsiness, but it can cause other side effects.

    What other drugs will affect Omnexel (Flomax)?

    Tell your doctor about all your current medicines. Many drugs can increase your risk of very low blood pressure while taking Omnexel, especially:

    This list is not complete and many other drugs may affect Omnexel. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.


    • This medication contains Omnexel. Do not take Flomax if you are allergic to Omnexel or any ingredients contained in this drug
    • Keep out of reach of children
    • In case of overdose, get medical help or contact a Poison Control Center immediately

    Important information

    You should not use this medication if you are allergic to Omnexel. Do not take Omnexel with other similar medicines such as alfuzosin (Uroxatral), doxazosin (Cardura), prazosin (Minipress), silodosin (Rapaflo), or terazosin (Hytrin).

    Omnexel may cause dizziness or fainting, especially when you first start taking it or when you start taking it again. Be careful if you drive or do anything that requires you to be alert. Avoid standing for long periods of time or becoming overheated during exercise and in hot weather. Avoid getting up too fast from a sitting or lying position, or you may feel dizzy.

    If you stop taking this medicine for any reason, call your doctor before you start taking it again. You may need a dose adjustment.

    Omnexel can affect your pupils during cataract surgery. Tell your eye surgeon ahead of time that you are using this medication. Do not stop using Omnexel before surgery unless your surgeon tells you to.

    There are many other drugs that can interact with this medicine. Tell your doctor about all medications you use.

    Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

    What other drugs will affect Omnexel?

    Tell your doctor about all medicines you use, and those you start or stop using during your treatment with, especially:

    blood pressure medicine.

    This list is not complete. Other drugs may interact with Omnexel, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.

    What is Omnexel (Flomax)?

    Omnexel is an alpha-blocker that is used to improve urination in men with benign prostatic hyperplasia (enlarged prostate).

    Omnexel is not approved for use in women or children.

    Omnexel may also be used for purposes not listed in this medication guide.

    How to use Omnexel HCL

    Read the Patient Information Leaflet if available from your pharmacist before you start taking this medication and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

    Take this medication by mouth as directed by your doctor, usually once daily, 30 minutes after the same meal each day. Swallow this medication whole. Do not crush, chew, or open the capsules.

    The dosage is based on your medical condition and response to treatment.

    Omnexel may cause a sudden drop in your blood pressure, which could lead to dizziness or fainting. This risk is higher when you first start taking this drug, after your doctor increases your dose, or if you restart treatment after you stop taking it. During these times, avoid situations where you may be injured if you faint.

    Take this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day.

    If you have not taken this drug for several days, contact your doctor to see if you need to be restarted at a lower dose.

    It may take up to 4 weeks before your symptoms improve. Tell your doctor if your condition does not improve or if it worsens.

    What should I discuss with my healthcare provider before taking Omnexel (Flomax)?

    You should not use Omnexel if you are allergic to it.

    Tell your doctor if you have ever had:

    Omnexel can affect your pupils. If you have cataract surgery, tell your surgeon ahead of time that you use this medicine.

    Omnexel is not for use in women, and the effects of this medicine during pregnancy or in breastfeeding women are unknown.

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