Sexual Wellness· Medication / Therapy

Tadalafil (Cialis)

  • Long-acting
  • Daily or as-needed
  • Also treats BPH

Tadalafil (Cialis) is a long-acting PDE5 inhibitor with a 17.5-hour half-life. Available as as-needed (10–20 mg before sex) or daily low-dose (2.5–5 mg). The duration window enables spontaneity that the shorter-acting sildenafil cannot match, and the daily dose is also FDA-approved for BPH symptoms.

Typically used for:

Treating erectile dysfunction on demand or as a daily low-dose option.

Find a Provider5.0 from 1 patient review

Benefits

What Tadalafil (Cialis) can do for you.

  • Up to 36-hour window

    Long half-life means the medication remains effective across a multi-day window — fewer planning constraints than sildenafil.

  • Daily-dose option

    Daily 2.5–5 mg eliminates timing concerns and is often the right call for men with situational ED.

  • BPH bonus

    At the daily dose, tadalafil also improves urinary symptoms of benign prostatic hyperplasia (BPH).

Tadalafil is a phosphodiesterase-5 (PDE5) inhibitor — the same class as sildenafil — with a substantially longer half-life.2 Marketed as Cialis, it enables both as-needed and daily-dosing protocols, and is one of the most-prescribed medications for erectile dysfunction in current US practice.1

How it works

Mechanism mirrors sildenafil: inhibiting PDE5 allows cGMP to accumulate during sexual stimulation, relaxing corpus cavernosum smooth muscle and improving blood flow. The clinically meaningful difference is duration — tadalafil's ~17.5-hour half-life means a single 10–20 mg dose can support sexual activity for up to ~36 hours.24

Daily vs. as-needed

Two protocols are FDA-approved: episodic (10–20 mg as needed, ≥30 minutes before activity) and daily (2.5–5 mg taken consistently).34 Daily dosing eliminates the need to plan around a dose and produces continuous PDE5 inhibition. Many men prefer it once they try it — particularly those who experience situational ED, who want spontaneity, or who also have BPH-related lower urinary tract symptoms.

Who it is for

Appropriate first-line therapy for ED, especially in men who value duration over speed of onset, who experience situational rather than constant ED, or who also have BPH. Same general indications and cautions as sildenafil.

Cautions

  • Absolutely contraindicated with nitrates — same as all PDE5 inhibitors.
  • Less food-sensitive than sildenafil but still affected by alcohol and high-fat meals.
  • Side effects: headache, back/muscle pain (more characteristic of tadalafil than sildenafil), flushing, nasal congestion. Usually mild.
  • Discuss with your physician re: unstable CV disease, recent stroke/MI, severe hepatic/renal impairment.

How it works

From consult to follow-up.

  1. Initial consultation

    A board-certified physician reviews your symptoms, history, and goals. At many participating clinics the first visit is complimentary.

  2. Baseline labs

    Bloodwork tailored to the protocol. Results come back in days, not weeks. We don't prescribe before we have your numbers.

  3. Personalized protocol

    Your physician calibrates your dose based on your labs and your goals — not a template. Adjustments happen as your data evolves.

  4. Ongoing follow-up

    Recheck visits at six and twelve weeks, then quarterly. Real follow-up, structured into the plan.

Duration
Oral medication; as-needed or daily protocol
Results timeline
30-minute onset; up to ~36-hour effect window per dose

Designed around your schedule

  • Consults are short

    Initial visits are typically 45–60 minutes. Many participating clinics waive the fee for new patients.

  • Telehealth follow-ups

    Where state regulations allow, follow-up visits are conducted via telehealth — no extra drive time.

  • Medication shipped

    Prescriptions ship directly from a 503B-licensed pharmacy to your door. No standing in line.

  • Quarterly check-ins

    Real follow-up at six and twelve weeks, then quarterly. Not constant visits, not zero visits.

Network providers

34 certified physicians offer Tadalafil (Cialis).

Every provider in the network is board-certified and credentialed.

  • Brandon Crandall, NP

    Men's Health / Erectile Dysfunction · Syracuse, NY

    Brandon Crandall, NP
  • Candace Remington, NP

    Men's Health / Erectile Dysfunction · Tampa, FL

    Candace Remington, NP
  • Deb Gross, NP

    Men's Health / Erectile Dysfunction · Centralia, WA

    Deb Gross, NP
  • Dr. Adriana Rosales, MD

    Men's Health / Erectile Dysfunction · Seattle, WA

    Dr. Adriana Rosales, MD
  • Dr. Aleix Bazzi, MD

    Men's Health / Erectile Dysfunction · Beverly Hills, CA

    Dr. Aleix Bazzi, MD
  • Dr. Amit Grover, MD

    Men's Health / Erectile Dysfunction · Seattle, WA

    Dr. Amit Grover, MD
  • Dr. Ashish Bhavsar, MD

    Men's Health / Erectile Dysfunction · Orange County, CA

    Dr. Ashish Bhavsar, MD
  • Dr. Bona Lee, MD

    Men's Health / Erectile Dysfunction · Dallas, TX

    Dr. Bona Lee, MD
  • Dr. Brad Sellers, DO

    Men's Health / Erectile Dysfunction · Dallas, TX

    Dr. Brad Sellers, DO

Patient reviews — Tadalafil (Cialis)

★★★★★5.0from 1 review

  • James R.

    ★★★★★

    Phoenix, AZ · Nov 2024

    Daily low-dose tadalafil has been a game-changer. No planning, no timing around meals. Wish I'd known about this protocol sooner.

    Source: Internal Sample · Verified

Where to get it

Available in 23 cities.

Pick your metro to see the local clinics, providers, and booking options.

See all 23 cities

How they compare

Sildenafil vs Tadalafil

Reviewed by Grant Disick, MD · April 2026
 
First-lineSildenafilBrand: Viagra · generic available
First-lineTadalafilBrand: Cialis · generic available
MechanismPDE5 inhibitor — enhances blood flow to the penis via the nitric-oxide pathwayPDE5 inhibitor — same mechanism as sildenafil
Half-life~4 hours~17.5 hours
Onset30–60 minutes30 minutes to 2 hours
Dosing25–100 mg, ~1 hr before sex10–20 mg as-needed, or 2.5–5 mg daily
Food interactionFatty meals delay onsetMinimal
Daily-dose optionNoYes — often best for situational ED or BPH overlap
Common side effectsHeadache, flushing, nasal congestion, blue-tinted visionHeadache, back pain, muscle aches
Best forPlanned, single-event useSpontaneity, BPH overlap, daily use
Typical price (generic)~$2–6 per dose~$2–8 per dose; daily ~$30–60/month

What sets us apart

Real physicians. Real labs. Real follow-up.

GentsMed is a network of board-certified physicians held to a single clinical standard — built to replace the cash-pay men's-health mills with actual medicine.

Board-certified physicians.
Every provider is licensed, NPI-verified, and credentialed by the GentsMed or Urosculpt certification board — no nurse-only prescribers, no offshore consults.
A single clinical standard.
Whether you see a urologist in Tampa or a dermatologist in New York, the protocol meets the same criteria.
Labs-driven, not guess-driven.
No prescriptions without baseline labs. No cookie-cutter dosing. Quarterly bloodwork is built into the plan.
Real follow-up.
Not a 'set it and forget it' Rx mill. Every protocol includes structured follow-up at 6 and 12 weeks, then quarterly.
Transparent pricing.
Starting-from prices where we have them, honest "consult for pricing" where we don't. No surprise bills.
Your records stay with your physician.
GentsMed is the network. We do not store your PHI. Your clinical data lives with your treating physician, where it belongs.

Frequently asked questions

Get started

Talk to a physician about Tadalafil (Cialis).

Every provider in the network is board-certified and credentialed. Find one near you in under a minute.

Tadalafil (Cialis) — GentsMed