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Get Prescription Tamsulosin Online

  • Once daily prescription medication
  • Treats enlarged prostate (benign prostatic hyperplasia)
  • Sold under brand name Flomax
4.9
745,000+ Patients Served
What is tamsulosin?

Tamsulosin is a prescription medication primarily used to treat benign prostatic hyperplasia (BPH) – a non-cancerous enlargement of the prostate gland. It belongs to a class of drugs called alpha-1 blockers, which help to improve urine flow and reduce symptoms like:

  • Difficulty starting urination
  • Weak urine stream
  • Frequent urination, especially at night
  • Feeling like the bladder doesn’t fully empty

Tamsulosin is usually taken once daily, about 30 minutes after the same meal each day to maintain consistent absorption.

How does tamsulosin work?

Tamsulosin works by relaxing specific muscles in the urinary tract, making it easier to urinate. More specifically, it’s an alpha-1 adrenergic receptor blocker that targets alpha-1A receptors, which are mostly found in the prostate, bladder neck, and urethra. By blocking the alpha-1A receptors, tamsulosin helps:

  • Relax the smooth muscle in the prostate and bladder neck
  • Reduce resistance to urine flow
  • Improve symptoms like weak stream, incomplete bladder emptying, and urgency

Unlike some older alpha blockers, tamsulosin is uroselective. This means it mainly affects the urinary tract and has less effect on blood pressure than non-selective alpha blockers (like doxazosin or terazosin). That said, some people may still experience dizziness or lightheadedness, especially when starting treatment.

How do I know if I qualify for tamsulosin?

Whether you qualify for tamsulosin depends on your symptoms, diagnosis, medical history, and overall health. A healthcare provider will assess several factors before prescribing it. You may qualify for tamsulosin if you’ve been diagnosed with benign prostatic hyperplasia or have urinary symptoms such as:

  • Difficulty starting urination
  • Weak stream or dribbling
  • Frequent urination, especially at night
  • Feeling like your bladder doesn’t fully empty

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Meet our expert


My approach to healthcare is grounded in listening, education, and empowering patients to take an active role in their wellness.

I believe virtual care expands access and allows me to support patients with the same compassion and clinical excellence as an in-person visit. My goal is always to meet patients where they are and guide them toward safe, personalized, sustainable health outcomes.

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Frequently
Asked
Questions

How do I know if tamsulosin is right for me?

Tamsulosin may be right for you if you're experiencing urinary symptoms from an enlarged prostate (BPH) and don’t have conditions like low blood pressure or upcoming eye surgery. A healthcare provider can confirm with a symptom review and physical exam.

When is the best time to take tamsulosin?

The best time to take tamsulosin is 30 minutes after the same meal each day, usually after dinner. Taking it with food helps reduce the risk of side effects like dizziness or lightheadedness.

Is tamsulosin like Viagra®?

No, tamsulosin is not like Viagra® – they work differently and treat different conditions.

Tamsulosin is used to treat urinary symptoms from an enlarged prostate (BPH). It relaxes muscles in the prostate and bladder to improve urine flow.

Viagra® (sildenafil) is used to treat erectile dysfunction (ED). It increases blood flow to the penis by enhancing the effects of nitric oxide.

While both can affect smooth muscle and blood flow, they target different systems and are not interchangeable. In some cases, they may be prescribed together, but only under medical supervision.

Does tamsulosin cause ED?

Tamsulosin doesn’t typically cause ED, but it can affect ejaculation in some men. The most common sexual side effect is retrograde ejaculation, where semen goes backward into the bladder instead of out through the penis. This can lead to:

  • Little or no semen during orgasm
  • Cloudy urine afterward (in some cases)

This isn’t harmful and doesn’t affect sexual pleasure, but it can be concerning if you’re trying to conceive. ED itself is not a common side effect, though it may occasionally occur. If you notice changes in sexual function after starting tamsulosin, talk with your provider – they can help determine if the medication is the cause or if something else may be contributing.

Does tamsulosin help with kidney stones?

Yes, tamsulosin can help with kidney stones – especially small stones in the lower part of the ureter (the tube that connects the kidney to the bladder).

  • It works by relaxing the smooth muscle in the ureter, which can:
  • Make it easier for the stone to pass
  • Reduce pain episodes
  • Shorten the time it takes to pass the stone

This use is considered off-label, meaning it’s not FDA-approved specifically for kidney stones, but it’s commonly recommended in certain cases. It’s most effective for stones smaller than 10 mm, and results can vary based on the stone’s size and location.

If you're dealing with a kidney stone, a healthcare provider can help decide if tamsulosin is appropriate for you.

Does tamsulosin lower blood pressure?

Tamsulosin can lower blood pressure slightly, but it’s less likely to do so than older alpha blockers. It mainly targets receptors in the prostate and bladder, not the blood vessels — so it's considered uroselective.

What are the most common side effects of tamsulosin?

Common side effects can include dizziness, headache, runny nose, and abnormal ejaculation. Because it lowers blood pressure slightly, it can occasionally cause dizziness or fainting, especially when standing up quickly.

Can LifeMD prescribe tamsulosin?

Yes! With LifeMD, you can connect with a licensed healthcare provider from the comfort of your home within an hour. If appropriate, your provider may prescribe a medication and send it directly to your local pharmacy.

For even more flexibility, a LifeMD+ membership gives you 24/7 access to care, same-day prescription refills, exclusive wellness perks, and easy access to lab testing — all designed to make managing your health simple and stress-free.

Skip the waiting room. Join LifeMD and take control of your health today.