Sildenafil tablets 50mg and 100mg — generic Viagra for men’s health and TRT practices. Fast-acting prescription ED treatment with a 4-6 hour window.
Sildenafil — generic Viagra — is the most widely recognized prescription ED medication and the most searched-for by name. It works within 30-60 minutes, provides a predictable 4-6 hour window, and is taken as needed — no daily dosing commitment required. For men’s health and TRT practices, having sildenafil alongside tadalafil means offering a genuine choice based on patient lifestyle and preference rather than defaulting to a single option. Available in 50mg and 100mg.
| Strength | Typical Use |
|---|---|
| 50 mg | Standard starting dose for most patients |
| 100 mg | Maximum dose; for patients with insufficient response at 50mg |
| Specification | Detail |
|---|---|
| Active ingredient | Sildenafil Citrate |
| Available strengths | 50mg, 100mg |
| Onset | 30-60 minutes |
| Duration | 4-6 hours |
| Daily dosing option | No |
| Food interaction | High-fat meals delay onset — take on an empty stomach for best results |
| Storage | Room temperature; away from heat and moisture |
| Prescription status | Rx only |
To get pricing, check availability, or place an order, click the Request a Quote button or contact our team directly. A valid medical or pharmacy license is required to purchase prescription and injectable products.
Sildenafil blocks PDE5, the enzyme that breaks down the chemical signal responsible for relaxing smooth muscle and increasing blood flow in the penis during sexual stimulation. By blocking PDE5, sildenafil allows that signal to persist longer, producing stronger and more sustained erections in response to sexual stimulation.
Sildenafil does not create erections independently — sexual stimulation is required. Its half-life of 3-5 hours produces a predictable 4-6 hour active window, making it a genuinely event-specific medication with a defined start and finish.
Sildenafil and tadalafil work through the same mechanism but serve different patient preferences. A practice that stocks only one forces patients to adapt to that drug’s profile. A practice that stocks both lets patients choose what fits their life.
| Sildenafil (Generic Viagra) | Tadalafil (Generic Cialis) | |
|---|---|---|
| Duration | 4-6 hours | Up to 36 hours |
| Onset | 30-60 minutes | 30-60 minutes |
| Daily option | No | Yes — 5mg |
| BPH approval | No | Yes |
| Food sensitivity | Significant — high-fat meals delay onset | Minimal |
| Color vision effect | Mild blue tinge possible | Rare |
| Best for | Event-specific shorter window; patients who prefer a defined timeframe | Spontaneity; daily dosing; BPH overlap |
Men who want a shorter, more predictable window — or who prefer not to have a medication active for 36 hours — are better served by sildenafil.
Men’s health and TRT practices: Sildenafil rounds out the ED treatment formulary alongside tadalafil. Men on TRT who restore testosterone but still experience vascular ED benefit from PDE5 inhibitor therapy. Offering both medications lets practices match the prescription to the patient rather than the reverse.
Sexual health practices: Comprehensive sexual health programs addressing both hormonal and vascular aspects of erectile function. Sildenafil handles the vascular side for patients who prefer the shorter window.
Integrative and functional medicine practices: Practices managing men holistically — hormones, metabolic health, sexual function — benefit from in-practice sildenafil prescribing rather than sending patients to consumer platforms.
Tadalafil Tablets (5mg / 10mg / 20mg) — Carrying both sildenafil and tadalafil gives practices coverage across the full range of patient preferences. Sildenafil for event-specific short-duration use; tadalafil for daily dosing, longer duration, or concurrent BPH management.
DHEA 25mg Capsules — Adrenal androgen precursor support addressing the hormonal dimension of male sexual function alongside sildenafil’s vascular mechanism.
Anastrozole 1mg Tablets — For TRT practices managing estrogen alongside testosterone. When sildenafil is prescribed within a TRT protocol, anastrozole addresses the hormonal optimization component.
Pregnyl (HCG) Injection — For practices running comprehensive men’s health protocols. Pregnyl supports testicular function and testosterone production; sildenafil addresses the erectile vascular mechanism. Complementary tools for different aspects of male sexual health.
Nitrate contraindication — absolute: Sildenafil combined with any nitrate medication — nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, or recreational nitrates (“poppers”) — causes severe, potentially fatal hypotension. This is the most critical prescribing check.
Riociguat: contraindicated. Do not use concurrently.
Cardiovascular screening: Sexual activity increases cardiac demand. Evaluate cardiovascular risk before prescribing. Not recommended for patients advised to avoid sexual activity for cardiac reasons.
Alpha-blocker interaction: Can cause significant blood pressure drops when combined. Use with caution and start at the lowest available dose.
CYP3A4 interactions: Strong inhibitors (ketoconazole, ritonavir, clarithromycin) increase sildenafil exposure significantly. Dose reduction is typically needed. Strong inducers (rifampin) reduce efficacy.
Food timing: High-fat meals delay absorption substantially. Inconsistent results on sildenafil are often a food timing issue, not a dosing issue. Counseling patients to take it on an empty stomach or at least two hours after a heavy meal resolves many complaints.
Blue tinge / color vision: A mild blue tinge or difficulty distinguishing blue from green is a characteristic sildenafil side effect from mild PDE6 cross-reactivity in the retina. It is generally benign and temporary. Patients with retinitis pigmentosa should not use sildenafil.
Sudden vision or hearing loss: Rare but serious. Instruct patients to stop sildenafil immediately and seek care if sudden vision or hearing loss occurs.
Hepatic and renal impairment: Clearance is reduced. Consider lower starting doses in these populations.
For use by or on the order of a licensed healthcare provider.
How do I order, and what quantities are available?
Contact our team directly to place an order or request a quote. We supply a range of quantities depending on the product — reach out for current availability, lead times, and volume pricing. A valid medical license is required to purchase prescription and injectable products.
What is the difference between sildenafil and tadalafil?
Both treat ED through the same mechanism. Sildenafil provides a 4-6 hour window and is event-specific. Tadalafil provides up to 36 hours and is available as a daily low dose. Tadalafil is also FDA-approved for BPH. High-fat meals significantly delay sildenafil’s onset but barely affect tadalafil. Many practices carry both to give patients a real choice.
Why do patients sometimes get inconsistent results with sildenafil?
The most common reason is food timing. A high-fat meal significantly delays sildenafil absorption — patients who take it after a heavy meal may find it takes much longer to work or feels less effective. Counseling patients to take sildenafil on an empty stomach or at least two hours after a large meal often resolves this without any dose change.
How does sildenafil fit into a TRT protocol?
Testosterone therapy addresses libido and hormonal drive. Sildenafil addresses the vascular erectile mechanism. They work through different pathways and are frequently prescribed together. The primary safety checks for combined use are nitrates and alpha-blockers, not testosterone itself.
Is a prescription required?
Yes. Sildenafil is Rx only, available exclusively to licensed healthcare providers and medical practices.
For use by or on the order of a licensed healthcare provider.
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