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Tadalafil for BPH: How Cialis Also Treats an Enlarged Prostate

By Anu 5 min read Updated July 26, 2026
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Sexual Health · Cluster Guide
The Short Answer · Updated June 2026

Tadalafil, best known as the ED medication Cialis, is also approved to treat the urinary symptoms of an enlarged prostate (BPH). Taken as a daily low dose, it relaxes smooth muscle in the prostate and bladder, easing symptoms like frequent or difficult urination, while treating ED at the same time.

For men who have both problems, that’s an appealing two-in-one solution.

What BPH is

Benign prostatic hyperplasia (BPH) is a non-cancerous enlargement of the prostate that’s extremely common as men age. The enlarged prostate presses on the urethra and irritates the bladder, causing symptoms like frequent urination, urgency, a weak stream, difficulty starting, and waking at night to urinate. It’s benign but genuinely disruptive to quality of life.

How tadalafil helps

Tadalafil is a PDE5 inhibitor. The same vessel- and muscle-relaxing action that helps with erections also relaxes the smooth muscle in the prostate, bladder neck, and their blood supply. That eases the obstruction and irritation behind BPH symptoms. For this use, it’s typically taken as a low daily dose rather than as needed, which we contrast with ED dosing in our daily vs as-needed guide.

The two-in-one advantage

Here’s why this matters. BPH and ED both become more common with age and frequently occur together. A daily tadalafil dose can address both at once: steadier urinary symptom relief and readiness for spontaneous intimacy, from a single medication. Rather than treating two conditions separately, some men cover both with one daily pill, which is efficient and convenient.

Who it suits

  • Men with bothersome BPH urinary symptoms, especially if they also have ED.
  • Men who prefer a daily routine and the always-ready convenience it brings.
  • Men looking to simplify, treating two common age-related issues with one medication.

It isn’t the answer for everyone, severe BPH or other urinary conditions may need different or additional treatment, which is why evaluation matters.

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What to keep in mind

Tadalafil carries the same safety considerations for BPH as for ED, most importantly, it must never be combined with nitrates, and it requires caution with certain other conditions and medications, as detailed in our guide to who should not take ED medication. A proper evaluation also confirms that your urinary symptoms are actually from BPH and not another cause. For comparing PDE5 options, see tadalafil vs sildenafil. Providers like HermanRx handle the assessment.

The Bottom Line
One medication, two common problems.

Daily tadalafil treats the urinary symptoms of an enlarged prostate by relaxing prostate and bladder muscle, and it treats ED at the same time. For the many men who have both, that’s a genuinely convenient two-in-one option. It shares ED medication’s safety rules, including the absolute nitrate contraindication, so get properly evaluated first.

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Frequently asked questions

Can Cialis treat an enlarged prostate?

Yes. Tadalafil is approved for BPH urinary symptoms. Taken as a low daily dose, it relaxes prostate and bladder smooth muscle to ease symptoms, and treats ED at the same time.

How is the dosing different from ED?

For BPH it’s typically taken as a low daily dose rather than as needed, which also keeps you ready for spontaneous intimacy.

Is it good if I have both BPH and ED?

Often, yes. Because the two frequently occur together, a single daily tadalafil dose can address both, which many men find convenient.

Are there safety concerns?

The same as for ED use, most critically it must never be combined with nitrates, and it needs caution with certain conditions. A proper evaluation is essential.

Important. This article is for informational purposes only and does not constitute medical advice. Urinary symptoms should be evaluated to confirm the cause. Tadalafil is a prescription medication with contraindications, including a dangerous interaction with nitrates. Consult a licensed healthcare professional before starting any treatment.