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HomeConditionsMedicationsSexual HealthED TreatmentWeight Loss

Sildenafil

Prescription Reviewed & Sent Fast

Sildenafil is a widely used prescription medication for erectile dysfunction (ED). Often known as generic Viagra, sildenafil helps improve blood flow to the penis, making it easier to maintain an erection during sexual activity. With 24hrdoc, eligible patients can request a sildenafil prescription online after completing a short medical questionnaire reviewed by a virtual provider.

  • Reviewed by a licensed U.S. provider
  • Prescription sent to your local pharmacy
  • No insurance required

at just

$39.99

5-minute assessment • No office visit required

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About this Medication

Sildenafil belongs to a class of erectile dysfunction medications known as PDE5 inhibitors. They work by helping blood vessels open more fully, allowing better blood flow to the penis when a man is sexually aroused.

Sildenafil tablets are commonly prescribed for men who have trouble getting or keeping an erection firm enough for sexual intercourse. ED symptoms may happen occasionally, or they may become an ongoing concern that affects confidence and sex life.

Sildenafil may be prescribed for men experiencing ED related to:

  • Occasional difficulty getting an erection

  • Ongoing trouble maintaining an erection

  • Performance anxiety

  • Age-related changes

  • Lifestyle-related ED

  • Circulation-related health problems

24hrdoc makes it easier to access medical treatment for ED from the privacy of home. After you answer questions about your symptoms, medical history, medications, and risk factors, a licensed healthcare provider will review your information to determine whether sildenafil is appropriate for your treatment plan.

24hrdoc's online ED service is designed primarily for adults ages 40–70. Patients must be 18 or older.

Quick Facts

Medication Type: PDE5 inhibitor

Treats: Erectile dysfunction (ED)

Common Brand Name: Viagra

Generic Name: Sildenafil

Medication Form: Sildenafil tablets

Prescription Required: yes

How It Is Taken: By mouth before sexual activity

When It Starts Working: Often within 30–60 minutes

How Long It Lasts: About 4 hours for many patients

Online Availability: Eligible patients may get sildenafil prescribed online after medical review

Pharmacy Access: Approved prescriptions can be sent to a local pharmacy

Insurance Coverage: Insurance does not cover the 24hrdoc consultation fee, but insurance may be used for pharmacy medications when accepted by the pharmacy

Is Sildenafil Right For You?

You may be a candidate if you:

  • Experience difficulty achieving or maintaining an erection
  • Are seeking treatment for erectile dysfunction reviewed by a licensed provider
  • Are not currently taking nitrate medications for chest pain
  • Do not have medical conditions that would make sexual activity unsafe

Not sure? A provider will review your information before prescribing to ensure it’s safe and appropriate.

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Simple 3-Step Process

How it Works

Get your prescription reviewed and sent — without the wait.
If approved, your prescription is sent to your pharmacy for pickup often within hours.

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1. Choose Sildenafil

Answer a short medical questionnaire so we can understand your goals, health history, and whether medicine is appropriate for you.

  • Takes 3–5 minutes
  • No insurance required
  • Transparent pricing before checkout

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2. Licensed Provider Review

A licensed medical provider reviews your information and determines if the medication is appropriate for you.

  • Real medical review
  • Safe, personalized decision
  • No commitment

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3. Prescription Sent to Your Pharmacy

If approved, your prescription is electronically sent to your preferred pharmacy for pickup.

  • Fast electronic delivery
  • Secure & confidential
  • Ongoing support if needed

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Have questions?
Get answers

*24hrdoc is not a pharmacy. We do not carry or
ship medicines. Online Doctor Prescriptions are
sent electronically to your pharmacy after an
online medical consultation.

Most prescriptions are sent to your pharmacy within a few hours. If you select express review and pay the additional fee, approvals are typically completed within 45 minutes.

No insurance is required to use our service.

Like all medications, side effects are possible. A licensed provider will review your information to ensure the treatment is safe and appropriate for you.

Yes. Once approved, your prescription is sent electronically to the pharmacy you select.

Sildenafil works by improving blood flow to the penis during sexual stimulation. It belongs to a group of medications called PDE5 inhibitors, which help relax blood vessels so it is easier to maintain an erection. Sildenafil does not create arousal on its own, so sexual stimulation is still needed.

Sildenafil often starts working within 30–60 minutes. Some men may notice effects sooner, while others may need more time. A heavy or high-fat meal can delay the medication’s effect, so many patients take it before a large meal or several hours after eating. Your online doctor will explain how to take sildenafil based on your treatment plan.

Sildenafil lasts about 4 hours for many patients. This does not mean you will have an erection for 4 hours. It means the medication may help your body respond to sexual stimulation during that window. If you have an erection lasting more than 4 hours, seek emergency medical care right away.

No. Sildenafil does not increase libido or sexual desire. It helps with the physical response involved in getting and keeping an erection. If low desire is your main concern, talk to your doctor because the cause may be different from erectile dysfunction.

Alcohol can make sildenafil less effective and may increase side effects. Drinking alcohol may make it harder to get an erection, and it can also increase dizziness, flushing, headache, or low blood pressure. If you use sildenafil, limit alcohol and follow your healthcare provider’s instructions.

Sildenafil is safe for many men when prescribed by a licensed healthcare provider and taken as directed. It is not safe for everyone, especially patients who take nitrates, have certain heart conditions, or use medications that interact with ED meds. Before sildenafil is prescribed online, your provider will review your medical history and risk factors to determine whether it is appropriate.

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without the wait.

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