Where to Buy Viagra Online — telemedicine evaluation & patient education
Overview
Viagra (sildenafil citrate) is a clinically established medication used to treat erectile dysfunction (ED), a condition that affects a man’s ability to develop or maintain a firm erection suitable for sexual activity. ED can result from circulatory disorders, metabolic imbalances, nerve damage, stress, or age-related changes.
Viagra works by enhancing natural blood flow to the penile tissue during sexual stimulation, helping men regain confidence, improve performance, and restore intimacy. It does not create sexual desire; rather, it supports the body’s natural physiological response. As one of the most widely studied medications in men’s health, Viagra has a long track record of safety and effectiveness.
How It Works
Viagra belongs to a group of medicines called phosphodiesterase type-5 (PDE5) inhibitors. Sexual arousal stimulates the release of nitric oxide, which activates cGMP, causing the smooth muscles in penile blood vessels to relax. In men with ED, this pathway may be impaired.
Viagra blocks PDE5, the enzyme responsible for breaking down cGMP too quickly. This allows the arteries to remain relaxed longer, enabling increased blood inflow and sustained erection potential. The medication reaches peak effect within 30–60 minutes and remains active for approximately four hours.
Dosage & Use
Most patients begin with a Viagra 50 mg tablet taken once per day, about one hour before anticipated sexual activity. Some may require adjustments: 25 mg for those with sensitivity or medical restrictions, or Viagra 100 mg for patients who need stronger support.
Viagra should never be taken more than once within 24 hours. High-fat meals may delay onset. Alcohol may reduce response or increase dizziness. Patients with heart disease, low blood pressure, or those taking nitrates must avoid Sildenafil due to risk of serious interactions.
Safety & Side Effects
Common side effects include mild headaches, flushing, warm sensation, nasal congestion, or upset stomach. In rare cases, men may experience vision changes or hearing disturbances.
Any sudden loss of vision, severe dizziness, or painful erection lasting longer than four hours (priapism) requires emergency attention. Patients should disclose all medications and health history to their provider before starting therapy.
Who Should Avoid It
Men using nitrate-based drugs (e.g., nitroglycerin), alpha-blockers, or recreational “poppers” must not take Viagra because of the severe risk of blood pressure collapse. It is also contraindicated in severe cardiac disease, uncontrolled hypertension, or recent stroke.
Telehealth FAQ
How long does Viagra last?
Most men experience effectiveness for up to four hours, although response varies.
Can I take Viagra daily?
No — it is intended for as-needed use, maximum once every 24 hours.
Does Viagra increase sexual desire?
No. It improves blood flow but does not affect libido.
Is Viagra safe with alcohol?
Heavy drinking reduces its effectiveness and increases dizziness. Moderate use is safer.
Viagra quick facts
| Typical class | Varies by medication |
|---|---|
| Common uses | Determined after clinician evaluation |
| Who should not use | Allergy to ingredient or severe interactions; red‑flags need in‑person care |
| Common side effects | Varies; reviewed during visit |
| Onset / duration | Individual; depends on dose and route |
| Key interactions | Other prescriptions, OTC, supplements — disclose your full list |
Medication categories & key parameters
Men’s health
- Men’s health: ED, PE, fertility (select cases)
Selection criteria, coverage & eligibility
- Eligibility: age, location, identity verification, good‑faith exam.
- Clinical fit: benefits must outweigh risks; alternatives discussed.
- Coverage: pharmacy plans may cover prescriptions; visit fees vary; receipts provided.
- Costs: we suggest generics and local price checks when possible.
Step‑by‑step
- Book a video visit and complete intake.
- Meet your clinician; confirm identity/location; review symptoms and red‑flags.
- Shared decision on options; safety first.
- If appropriate, e‑prescription to your local pharmacy; clear instructions provided.
- Follow up via secure messages; refills require reassessment.
Why patients choose Pulido Telemedicine
- Licensed clinicians and conservative, evidence‑based decisions.
- Plain‑language instructions with clear warning signs.
- Coordination with your regular providers on request.
- Budget‑aware recommendations with safety first.
Trusted sources
Related alternatives
Medically reviewed
Reviewed by: Dr. Hernando Pulido, DDS/MSD · Dr. Lina M. Pulido, DMD
Last reviewed: 2025-09-03
Education only. Prescriptions may be issued only after a good‑faith exam and when clinically appropriate.
Consult a doctor online; prescriptions issued only when safe and appropriate. Controlled substances are not prescribed via telemedicine.
