Tadalafil isn't just for the bedroom.
Two massive studies — one tracking nearly 29,000 men, another following over 500,000 — found something that changed how physicians think about tadalafil entirely. Men who took it regularly didn’t just have better sex lives. They had measurably longer, healthier ones. Here’s what the science actually shows.
At Obsidian Genetics, we offer physician-supervised tadalafil — one flat monthly price, personalized dosing, and ongoing provider support built in.
No waiting rooms. No pharmacy lines. Complete your intake online in minutes, and if prescribed, your medication ships directly to your door. Your provider adjusts your dose over time at no extra charge — because getting it right is part of the program.
Whether you’re treating erectile dysfunction, managing BPH, or simply investing in long-term cardiovascular and cognitive health, tadalafil may be one of the most studied and well-tolerated tools available.
Tadalafil
The numbers that changed the conversation.
From two of the largest real-world studies ever conducted on men's health.
Observational studies. Association does not confirm causation. Individual results vary. A prescription from a licensed physician is required.
Prescribed For
*FDA approval refers to the branded tadalafil molecule. Compounded tadalafil is not FDA-approved.
A complete program. One flat price.
Personalized physician dosing
Your provider customizes your dose based on your health profile and goals — and adjusts it over time at no extra charge.
Supplies kit included
Every shipment includes syringes and alcohol pads — everything you need to self-administer safely at home.
Ongoing provider support
Check-ins, dose adjustments, and provider access throughout your treatment — not just at sign-up.
Platform access & education
Access our patient platform for educational content, dosing guidance, and program resources.
Free, discreet shipping
Fast delivery, confidential packaging — right to your door.
How does it work?
Fill in a brief health assessment form, 100% online — takes under 10 minutes.
Our board-certified physicians review your answers and determine if semaglutide is appropriate for you.
Fast, free delivery if granted a prescription — supplies included, discreet packaging, right to your door.
Safety & Considerations
Tadalafil is a prescription medication. Your Obsidian Genetics provider will review your full health history before prescribing.
⚠ Important Safety Information
Never take tadalafil with nitrates. This includes nitroglycerin, isosorbide, and recreational drugs known as "poppers" (amyl nitrite). Combining tadalafil with nitrates can cause a severe, potentially life-threatening drop in blood pressure.
Frequently asked question
What is tadalafil and how does it work?
Tadalafil is a PDE5 inhibitor that works by relaxing smooth muscle in the penis and increasing blood flow in response to sexual stimulation. It also has systemic effects on vascular and endothelial function throughout the body. Daily low-dose tadalafil has been shown in large studies to improve cardiovascular outcomes and reduce mortality risk independent of its effects on erectile function.
Is tadalafil the same as Cialis?
Tadalafil is the active ingredient in Cialis, a brand-name medication manufactured by Eli Lilly. Obsidian Genetics offers physician-prescribed tadalafil at a fraction of branded costs. The molecule is identical; what differs is formulation, delivery, and price.
How is tadalafil taken?
Tadalafil is typically prescribed at low daily doses (2.5mg or 5mg). You take the same dose every day at the same time — no timing required. Some men also use higher as-needed doses (10mg or 20mg) 30–60 minutes before sexual activity for more acute response.
How long does tadalafil take to work?
Daily tadalafil builds in your system over a few days to a week. Most men notice improved erectile function and reduced urgency within the first week of consistent dosing. The broader cardiovascular and health benefits emerge over months and years of sustained use.
What if tadalafil doesn't work for me?
Your Obsidian Genetics provider will adjust your dose based on your response. If low-dose daily tadalafil is not effective after two weeks, your provider may increase the dose, change the timing, or recommend combination therapy with other agents. Every patient is different; finding the right dose and regimen is part of the process.
Can I take tadalafil with other medications?
Most medications are compatible with tadalafil. However, tadalafil cannot be taken with nitrates in any form, and caution is required with certain blood pressure medications. Always disclose all medications and supplements to your Obsidian Genetics provider during your initial consultation.
Will my insurance cover tadalafil?
Many insurance plans do cover generic tadalafil, especially when prescribed for erectile dysfunction or benign prostatic hyperplasia (BPH). Obsidian Genetics can work with your insurance to maximize coverage. If your plan does not cover it, our pricing is still significantly lower than brand-name alternatives.
Important: This content is for informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment. Tadalafil is a prescription medication. A licensed Obsidian Genetics physician will evaluate your health history and determine whether tadalafil is appropriate for you. Prescription required. Individual results vary. The research statistics cited on this page are from observational studies and reflect population-level associations — they do not guarantee individual outcomes. Tadalafil is FDA-approved for erectile dysfunction and benign prostatic hyperplasia (BPH). References to cardiovascular, cognitive, and performance benefits reflect emerging clinical research and represent off-label areas of ongoing study. Always disclose all medications and health conditions to your physician. Do not take tadalafil if you use nitrates in any form.