Kidney Stones >; Tamsulosin Ineffective for Small Ureteral Stones In the double-blind STONE (Study of Tamsulosin for Urolithiasis in the. Nephrolithiasis specifically refers to calculi in the kidneys, but renal selective blockers, such as tamsulosin, also relax the musculature of the. Medscape – Benign prostatic hyperplasia-specific dosing for Flomax (tamsulosin), frequency-based adverse effects, comprehensive interactions.

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Current guidelines by the American Urological Association recommend alpha blockers for ureteral stones 10 mm or less in diameter. Drug information contained herein may be time sensitive.

I discussed this issue on EMRAP back in December and received the following comments from one of the listeners who discussed this topic with their urology group. These studies have demonstrated a lack of benefit for routine use of alpha blockers.


One third of the patients who did not receive tamsulosin needed to be hospitalized, 3 for uncontrollable pain and 7 for failure to pass their stone in 28 days. European Urology ; Natasha Persaud, Digital Content Editor.

We agree with the authors conclusions. In the control group, only AlphaBlockers Compared With Calcium Channel Blockers InBorghi and colleagues demonstrated the efficacy of the calcium channel blocker nifedipine in the treatment of ureteral stones in a randomized, double-blind, placebo-controlled study.


Medical expulsive therapy in adults with ureteric flokax Both tamsulosin and nifedipine significantly increased stone passage rates. Oral diclofenac in the prophylactic treatment of recurrent renal colic.

Hollingsworth JM et al. A host of very poor data shows a benefit but these studies were not performed with any degree of methodological rigor that is acceptable. So nnephrolithiasis the use of tamsulosin in renal colic facilitate stone passage? The best evidence we have to date, does not show a significant benefit in the use of tamsulosin in renal colic to facilitate stone passage.

In a prospective randomized study, tamsulosin was compared with terazosin and doxazosin. In spite of recent multiple studies, the use of alpha blockers remains an area of active debate.

Non-blinding design would favor drug but no benefit anyway.

Tamsulosin Ineffective for Small Ureteral Stones

This was a true RDCT. Sustained contraction of smooth muscle in the ureter as a kidney stone passes the length of the ureter leads to pain. This study adds to the growing, high-quality evidence that tamsulosin offers no significant benefit and further challenges current practices. It appears this floma was not on an ED population as well.


There are no well done, large RDCTs to guide us. Medical expulsive therapy using the alpha blocker tamsulosin does not aid passage of ureteral stones less than 9 floomax in diameter, according to study findings published online in JAMA Internal Medicine.

Dahm P and Hollingsworth JM. The majority of stones will pass spontaneously i. The American Urological Association. This could potentially reduce ED revisits, reduce the number of invasive procedures and make happy patients. The following two tabs change content below.

This is the best study to date and will be powered to over ppl. Patients were evaluated 15 days after receiving SWL with abdominal radiography to evaluate for residual stone burden.

Tamsulosin (Flomax) – Side Effects, Dosage, Interactions – Drugs

The following two tabs change content below. All patients received diclofenac as needed for pain. The stone-free rate was Effectiveness of nifedipine and deflazacort in the management of distal ureter stones. The mean stone size for those receiving tamsulosin was 8.