Tadalafil Used For: A Practical Guide
“Tadalafil used for” is a broad search, and it usually reflects one of several questions: what the medication treats, whether it works for premature ejaculation, whether women can take it, or simply what it does in the body. This guide separates what’s FDA-approved from what’s off-label and still being studied.
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Quick Answer Tadalafil is FDA-approved for three uses: erectile dysfunction, benign prostatic hyperplasia, and pulmonary arterial hypertension (in both men and women, as Adcirca). It’s sometimes used off-label for premature ejaculation or for female sexual arousal disorder, but neither of those uses is FDA-approved, and evidence for the latter is limited and mixed. [Source: FDA Tadalafil Prescribing Information] |
What Is Tadalafil FDA-Approved For?
| Condition | Approved Population | Brand |
| Erectile dysfunction | Men | Cialis [Source: FDA Tadalafil Prescribing Information] |
| Benign prostatic hyperplasia (BPH) | Men | Cialis [Source: FDA Tadalafil Prescribing Information] |
| Pulmonary arterial hypertension (PAH) | Men and women | Adcirca [Source: FDA Tadalafil Prescribing Information] |
Notably, tadalafil (as Adcirca) is FDA-approved for PAH in women — it’s only the ED and BPH indications that are male-specific. This distinction matters for anyone searching “tadalafil for women,” since the answer depends heavily on which use is being asked about.
What Does Tadalafil Do for Men With ED?
Tadalafil inhibits PDE5, increasing cGMP signaling and blood flow to the penis during sexual stimulation. It does not create arousal on its own; sexual stimulation is still required. [Source: AUA Erectile Dysfunction Guideline]
Tadalafil for BPH
For BPH, tadalafil 5 mg once daily is used to treat urinary symptoms associated with an enlarged prostate, and it’s also approved for men who have both BPH and ED together. [Source: FDA Tadalafil Prescribing Information]
Tadalafil for Pulmonary Arterial Hypertension
As Adcirca, tadalafil 40 mg once daily is approved to improve exercise ability in adults with PAH, a serious condition involving high blood pressure in the lung arteries. This is the one FDA-approved indication that applies to both men and women. [Source: FDA Tadalafil Prescribing Information]
Off-Label: Tadalafil for Premature Ejaculation
A randomized, placebo-controlled trial found tadalafil combined with fluoxetine significantly increased ejaculatory latency compared with either drug alone or placebo, in men with lifelong premature ejaculation. [Source: Mattos et al., Urologia Internationalis, 2008]
This is a studied off-label use, not an FDA-approved indication for tadalafil alone.
Tadalafil for Women: What Does the Research Actually Show?
Outside of PAH, tadalafil is not FDA-approved for any use in women. Some clinicians prescribe it off-label for female sexual arousal disorder (FSAD), based on the theory that PDE5 inhibition may increase genital blood flow the same way it does in men. [Source: FDA Tadalafil Prescribing Information]
The evidence is limited and inconsistent. A small trial in premenopausal women with type 1 diabetes and genital arousal disorder found daily tadalafil improved measures of genital arousal. [Source: Journal of Sexual Medicine, 2012]
However, a broader look at the evidence base is far more cautious. A 2024 New England Journal of Medicine review found no evidence of benefit from PDE5 inhibitors in healthy women with arousal dysfunction, and professional guidance from ACOG specifically advises against using sildenafil for arousal or interest disorders outside of a clinical trial, a caution that extends to the drug class generally. [Source: NEJM review, 2024; ACOG Practice Bulletin]
Tadalafil does not directly increase libido or desire in women, and it is not a treatment for hypoactive sexual desire disorder (HSDD); that distinction matters because arousal and desire involve different underlying mechanisms. [Source: FDA Vyleesi Prescribing Information, 2019]
| Important: “Tadalafil 20 mg for female” products marketed online are not FDA-approved for that use. Any off-label use in women should be a decision made with a prescriber who can weigh the limited evidence against individual health factors, not a self-directed purchase. |
Who Should Not Take Tadalafil
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Contraindications and Cautions Contraindicated with organic nitrates and guanylate cyclase stimulators such as riociguat, due to hypotension risk. [Source: FDA Tadalafil Prescribing Information] Use caution with alpha-blockers, other antihypertensives, and cardiovascular disease. Anyone with priapism-predisposing conditions or a history of sudden vision or hearing loss on a PDE5 inhibitor should discuss risk with a prescriber first. |
Common Side Effects
Headache, dyspepsia, back pain, muscle aches, flushing, nasal congestion, and dizziness are commonly reported. [Source: FDA Tadalafil Prescribing Information]
Warning Signs of an Unverified Tadalafil Product
| Marketed specifically as “tadalafil for women” without a prescription requirement |
| Claims to be “natural tadalafil” or a supplement |
| Promises guaranteed results for an off-label, evidence-limited use |
| No prescriber screening or medical history review before sale |
When Should You See a Doctor?
| You’re considering tadalafil for anything outside its FDA-approved uses |
| You take nitrates, alpha-blockers, or multiple blood-pressure medications |
| You have cardiovascular disease or risk factors |
| You experience an erection lasting more than 4 hours, or sudden vision or hearing changes |
Frequently Asked Questions
What is tadalafil primarily used for?
Its main FDA-approved uses are erectile dysfunction and benign prostatic hyperplasia in men, and pulmonary arterial hypertension in men and women.
Can women take tadalafil?
Women can be prescribed tadalafil for pulmonary arterial hypertension, an FDA-approved use. For sexual arousal disorder, use would be off-label, and current evidence doesn’t consistently show benefit in healthy women.
Does tadalafil help with premature ejaculation?
One placebo-controlled trial found tadalafil combined with fluoxetine improved ejaculatory latency, but this is an off-label use, not an FDA-approved indication.
What does tadalafil do for men?
It increases blood flow to support erections in men with ED, and separately treats urinary symptoms of an enlarged prostate.
Is tadalafil safe to combine with nitrates?
No. Tadalafil is contraindicated with organic nitrates because the combination can cause a severe, potentially life-threatening drop in blood pressure.
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The Bottom Line Tadalafil’s FDA-approved uses are erectile dysfunction, BPH, and pulmonary arterial hypertension (the last of which includes women). Off-label uses like premature ejaculation and female sexual arousal disorder are being studied, but the evidence, especially in women, remains limited and inconsistent. A prescriber is the right source for deciding whether any use, approved or off-label, makes sense for a given situation. |
This article is for informational purposes only and is not a substitute for professional medical advice. Consult your doctor before starting, stopping, or changing any medication.
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References and Sources FDA. Tadalafil (Cialis/Adcirca) Prescribing Information. FDA. Vyleesi (bremelanotide) Prescribing Information, 2019. American Urological Association. Erectile Dysfunction Guideline. Mattos RM, et al. Tadalafil and Fluoxetine in Premature Ejaculation. Urologia Internationalis, 2008. Journal of Sexual Medicine, 2012. Tadalafil in Type 1 Diabetic Women with Genital Arousal Disorder. New England Journal of Medicine, 2024 review; ACOG Practice Bulletin on female sexual dysfunction. |