Sildenafil (Viagra) Rx Only
Generic for Viagra · PDE5 inhibitor for erectile dysfunction (ED)
from $0.58
- Prescription required. We do not dispense without a valid U.S. Rx.
- Pickup today in Los Angeles or get local delivery.
- Insurance accepted: Most major plans (Anthem, Cigna, Aetna, UnitedHealthcare).
- Reviewed by licensed pharmacists.
How ordering Sildenafil works
- Send us your prescription (upload, prescriber e-faxes, or transfer from another pharmacy).
- We verify your Rx, review interactions (e.g., nitrates, riociguat), and reach out if anything needs attention.
- Choose pickup or delivery at checkout. Most orders ready the same day.
Important safety information (summary)
Do not use if
- You take nitrates (e.g., nitroglycerin) or riociguat.
- Your clinician advised against sexual activity due to heart conditions.
Common side effects
Headache, flushing, indigestion, nasal congestion, dizziness, visual color tinge. Seek urgent care for chest pain, sudden vision/hearing loss, or an erection lasting >4 hours (priapism).
Use tips
Take 25–100 mg about 30–60 minutes before sexual activity; no more than once daily. High-fat meals may delay onset. Avoid excessive alcohol.
This page is informational and not a substitute for medical advice. See full information below.
What is Sildenafil?
Sildenafil (brand: Viagra) is a phosphodiesterase type 5 (PDE5) inhibitor used for erectile dysfunction. A lower-dose form (20 mg) is also used for pulmonary arterial hypertension under the brand Revatio. Dispensed by Serv-U Pharmacy only with a valid prescription.
Uses
- Erectile dysfunction (ED)
- Pulmonary arterial hypertension (PAH) — Revatio dosing; not interchangeable with ED dosing
Only your clinician can determine if sildenafil is appropriate for you.
How it’s taken (follow your prescription)
Typical ED starting dose: 50 mg taken as needed ~1 hour before sexual activity; adjust 25–100 mg based on response/tolerability; do not exceed once daily.
| Form | Strengths (examples) |
|---|---|
| Tablets | 25 mg, 50 mg, 100 mg (ED); 20 mg (PAH/Revatio) |
Food (especially high-fat) can delay effect. If you miss a planned dose for PAH, follow your prescriber’s instructions. Pharmacist counseling is available at checkout.
Warnings & interactions
- Nitrates/riociguat: Contraindicated due to severe hypotension risk.
- Alpha-blockers & antihypertensives: May increase dizziness—separate timing and monitor BP.
- Cardiovascular: Seek medical guidance if heart disease or recent stroke/MI.
- Priapism/vision/hearing: Stop and seek care for prolonged erection or sudden vision/hearing loss.
- Grapefruit: May raise levels—use caution.
Storage
Store tablets at room temperature, away from moisture and light. Keep out of reach of children.
FAQ
How long does it last? About 4 hours of effect window varies by person.
Can I split tablets? Many generics are scored; ask your pharmacist before splitting.
Can I take it with food? Yes, but a high-fat meal may delay onset.
Do you accept my insurance? We accept most major plans. Enter your details at checkout to see your copay.
Sources & review
- FDA Prescribing Information: Sildenafil (Viagra/Revatio)
- NIH MedlinePlus: Sildenafil
- Professional ED treatment guidelines
Medically reviewed by Judy Doyle, PharmD — Licensed Pharmacist (NPI 1699814004) · Last updated
Price & insurance estimator
Reviewed by our pharmacist
Judy Doyle, PharmD — Licensed Pharmacist (NPI 1699814004).
From the pharmacist’s bench: the sweet spot for sildenafil is 45–60 minutes before intimacy on a near-empty stomach; a heavy, high-fat meal often blunts or delays the effect. Most people start at 50 mg; if you’re on an α-blocker or run low blood pressure, we’ll consider 25 mg. Don’t judge it by a single try give it 3–4 attempts under similar conditions. Alcohol noticeably reduces response. Common effects are nasal stuffiness, flushing, and mild dizziness; a full glass of water, a cooler room, and if needed a small dose adjustment usually help. For headaches, we often fix it by lowering the dose or switching molecules (e.g., tadalafil or vardenafil). Never combine with nitrates or riociguat; if you develop chest pain, call 911. If the effect seems weak or too short, message us—we’ll fine-tune timing, dose, or consider an alternative that fits your routine.
How to spot a legitimate online pharmacy
- Requires a valid U.S. prescription for Rx medications.
- Displays state pharmacy license and physical address.
- Has NABP Digital Pharmacy or state board verification.
- Secure checkout; clear privacy practices (HIPAA).
- Offers pharmacist consultation.
Verify licenses with your state board or NABP listings.