Flomax Tabs (Tamsulosin)

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Flomax Tabs 0.4mg

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Manufactured by: Astellas Pharma Ltd
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Flomax Tabs 0.4mg
Product of United Kingdom
Manufactured by Astellas Pharma Ltd
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Tamsulosin Tabs 0.4mg

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Manufactured by: Apotex Inc
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Tamsulosin Tabs 0.4mg
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Flomax Tabs 0.4mg

Product of Canada
Manufactured by: Boehringer Ingelheim
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Flomax Tabs 0.4mg
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Manufactured by Boehringer Ingelheim
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Flomax CR (Tamsulosin) Medication Information

Uses

Flomax CR is an alpha antagonist used for the treatment of the signs and symptoms of benign prostatic hyperplasia or BPH.

Dosage

The Flomax CR controlled-release tablets are available in 0.4 mg strength. 

Side Effects

The most common side effects of Flomax CR include:

  • Headache
  • Dizziness
  • Rhinitis
  • Infection
  • Abnormal ejaculation
  • Asthenia
  • Back pain
  • Diarrhea
  • Somnolence
  • Nausea

For a full list of side effects that apply to you, please contact your pharmacist or doctor.

Precautions

Advise patients about the possibility of symptoms related to postural low blood pressure.

Inform patients about the possibility of priapism and its seriousness. 

Intraoperative Floppy Iris Syndrome has been seen during cataract surgery in some patients. Patients considering cataract surgery should tell their ophthalmologist that they have taken Flomax. 

Advise patients to be screened for prostate cancer before treatment and at regular intervals afterward.

Interactions

Common medications that interact with Flomax CR are listed:

  • Ketoconazole
  • Erythromycin
  • Paroxetine
  • Terbinafine
  • Sildenafil
  • Warfarin 

For more information, reach out to your pharmacist or doctor. 

Storage

Store at controlled room temperature (77ºF). 

Pharmacist Tips

  • Low blood pressure with position changes can occur, a symptom of this includes dizziness. Use caution when driving, or performing hazardous tasks.
  • Priapism is a possibility and if this occurs seek immediate medical attention.
  • If you are having cataract surgery tell your ophthalmologist that you have been taking Flomax CR.

Tamsulosin CR FAQs

Should this be taken with or without food?

Tamsulosin CR can be taken with or without.

 

Can I crush this medication?

No, this medication must be swallowed whole.

 

Does Flomax keep you from ejaculating?

One of the side effects seen is abnormal ejaculation, which can be the inability to ejaculate or have trouble ejaculating.

 

Does Flomax make you pee more?

Flomax CR relieves the pressure on the bladder muscles, so you can pee more easily.

 

How long does it take to work?

BPH relief can be seen in as little as one week, with the effect being seen up to 13 weeks after starting Flomax CR.

 

Is Flomax worth taking?

Flomax CR can help with enlarged prostates, but it does have side effects as with any medication. Speak with your doctor or pharmacist to get more answers about what to expect with Flomax

 

Related Drugs

Reference:

Flomax CR {package insert}. Burlington, CA: Boehringer Ingelheim Ltd.; 2019.

https://www.boehringer-ingelheim.ca/sites/ca/files/documents/flomaxpmen.pdf

PharmD Medical Writer

Author: Dr. Larisa Roybal, PharmD

Dr. Roybal is a board-certified pharmacotherapy specialist who has practiced in both ambulatory and acute care settings. Her pharmacy interests include oncology and general inpatient pharmacy.

The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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