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Intrinsic Longevity
Sexual & relational wellness

Tadalafil

A prescription medicine, best known as Cialis, that relaxes blood vessels so more blood can reach the penis during arousal.

Class
PDE5 inhibitor
Brand names
Cialis, Adcirca
Known for
Long duration
FDA status
FDA-approved (several uses)
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Overview

What it is

Tadalafil is a PDE5 inhibitor. PDE5 is an enzyme that ends the relaxing signal in blood vessel walls, so blocking it lets vessels stay open longer. It is sold as Cialis and Adcirca.

Tadalafil is one of a small group of medicines that changed how erectile dysfunction is treated. It was approved in 2003, after sildenafil.

Its distinguishing feature is duration. It stays active far longer than the others in its class, which earned it the nickname the weekend pill.

It has since been approved for more than one condition, including an enlarged prostate and a form of high blood pressure in the lungs.

Benefits

What it supports

  • FDA-approved for erectile dysfunction and for an enlarged prostate
  • Works on blood flow, so arousal is still needed for it to do anything
  • Offers a blood-flow option that differs from brain-acting options such as PT-141
  • Fits a provider-led sexual-wellness plan once a provider confirms it is appropriate
Mechanism

How it works

1

During arousal, nerves release a signal that makes blood vessel walls relax. Relaxed vessels let more blood in, which produces an erection.

2

An enzyme called PDE5 ends that signal. Tadalafil blocks the enzyme, so the relaxing signal lasts longer and blood flow is easier to maintain.

3

It does not create arousal. Without the initial nerve signal there is nothing for it to extend, which is why it only works alongside stimulation.

4

PDE5 also turns up in the prostate, the bladder, and the blood vessels of the lungs. That is why one medicine ended up approved for more than one condition.

Context

Who it's for

Adults looking at erectile function through the blood-flow pathway

Men dealing with both erectile difficulty and enlarged prostate symptoms

People comparing a blood-flow medicine with brain-acting options like PT-141

Adults who want an approved option with a well-documented safety record

Landscape

In the landscape

How this therapy compares to related options—not a recommendation.

  • Oxytocin Acetate

    Works on brain signals tied to bonding and mood, not on blood flow. A different part of the picture.

  • PT-141

    Works on arousal signals in the brain rather than on blood flow. Desire pathway versus physical response.

  • Tadalafil/Oxytocin

    A clinic name for using both together. Whether that fits you is decided after an evaluation.

Provider-directed

What providers review

  • Your history with erectile function and what has changed
  • Heart health, blood pressure, and above all any nitrate medicine
  • Medicines you take now, including alpha-blockers for the prostate
  • Vision and hearing history, and your overall health picture

For therapies that require medical evaluation, every protocol is designed by a licensed provider.

Suitability for Tadalafil is determined by a licensed provider after evaluation.

In this area

Related therapies

Other compounds that support overlapping wellness goals.

Questions

Tadalafil FAQ

Good to know

Regulatory & considerations

Tadalafil is FDA-approved as a prescription medicine for erectile dysfunction, for an enlarged prostate, and for a form of high blood pressure in the lungs. It must never be combined with nitrate heart medicines, which is one reason a provider reviews your history first.

Therapies that require medical evaluation are sourced from FDA-regulated 503A compounding pharmacies.

For therapies that require medical evaluation, every protocol is designed by a licensed provider.

Tadalafil is FDA-approved for erectile dysfunction, for an enlarged prostate, and for a form of high blood pressure in the lungs.

It must never be combined with nitrate heart medicines such as nitroglycerin. Together they can drop blood pressure to a dangerous level.

Common side effects include headache, indigestion, back or muscle aches, flushing, and a stuffy nose.

Erectile difficulty can be an early sign of heart or blood vessel disease, which is one reason the evaluation looks beyond the symptom itself.

Shop Tadalafil

See current pricing and availability for Tadalafil in our shop. If a medical evaluation is needed, a licensed provider guides you through it.

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Individual results vary. General information on this site is not a substitute for professional medical advice.