Sildenafil — FirstCall
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FDA-approved Sexual Health

Sildenafil

The active ingredient in Viagra® — an FDA-approved, on-demand ED treatment.

from $20 /mo 20–100 mg tablets / troches

Sildenafil is a PDE5 inhibitor that improves blood flow to support erections. It’s the active ingredient in Viagra®, taken on-demand about an hour before activity.

Evaluated by an independent, board-certified physician on the platform
FDA-approved active ingredient; filled by a licensed pharmacy
Oral tablet or troche, taken on-demand
Discreetly shipped to your door — available in all 50 states
Start your intake
Complete a short medical intake form. A supervising physician reviews it and, if appropriate, writes your Sildenafil prescription — no consultation visit required.

Prescription required. Final clinical decisions rest with the prescribing physician.

Overview

What is Sildenafil?

Sildenafil increases blood flow to the penis by relaxing blood vessels, helping achieve and maintain an erection with sexual stimulation. As a generic, it offers the same active ingredient as Viagra® at a fraction of the brand price.

It’s taken on-demand, typically 30–60 minutes before activity, and lasts several hours. A physician confirms it’s appropriate — especially around heart health and any nitrate medications.

What it’s studied for

Potential benefits

FDA-approved & proven

The well-established active ingredient in Viagra®.

On-demand

Taken before activity, effective for several hours.

Affordable generic

Same active ingredient as the brand at a much lower cost.

Flexible dosing

Available in a range of strengths and as dissolvable troches.

Using Sildenafil

How it works

How it’s taken

An oral tablet or troche taken about 30–60 minutes before activity, with sexual stimulation. The physician sets your starting dose.

Typical protocol

Used as-needed; the physician may adjust the dose based on response and tolerability.

Simple process

How ordering works

1

Complete the intake

Share your goals, health history, and current medications — about 5 minutes.

2

Physician evaluation

An independent, board-certified physician reviews your intake and, if appropriate, prescribes Sildenafil with a dosing protocol.

3

Compounded & shipped

The prescription is filled by a licensed compounding pharmacy and shipped to your door with instructions.

Safety information

What to know before Sildenafil

Sildenafil is a bioactive compound. The physician you’re connected with will review the relevant risks and contraindications for your situation before prescribing.

  • Do not combine with nitrates (e.g. nitroglycerin) — the combination can cause a dangerous drop in blood pressure.
  • Common side effects include headache, flushing, and nasal congestion.
  • Disclose heart disease, blood-pressure medications, and any chest-pain medications.
  • Seek care for an erection lasting over 4 hours (rare); the physician will review suitability.
Common questions

Sildenafil FAQ

What is sildenafil?

Sildenafil is the FDA-approved active ingredient in Viagra®, a PDE5 inhibitor used on-demand for erectile dysfunction.

Is it the same as Viagra?

Yes — same active ingredient, as an affordable generic.

How fast does it work?

Typically within 30–60 minutes; it works with sexual stimulation and lasts several hours.

Who should not take it?

Anyone taking nitrates or with certain cardiovascular conditions — disclose your history so the physician can confirm it’s safe.

How much does it cost?

Sildenafil starts from $20/month. Final pricing is confirmed after your physician evaluation. The initial evaluation is free.

Ready to start Sildenafil?

Complete a short medical intake — a supervising physician reviews it and, if appropriate, writes your prescription, and a licensed pharmacy ships to your door.

Pricing & regulatory note: The $20/mo price is an indicative starting point confirmed by the compounding pharmacy after physician evaluation. Sildenafil is not an FDA-approved finished drug product; it is prepared by licensed compounding pharmacies and prescribed off-label. FDA guidance on peptide compounding continues to evolve and availability can change. A prescription is required.