Viagra & Cialis (ED Medication)
As part of our comprehensive erectile dysfunction (ED) care, Tokyo Relife Clinic prescribes oral medications. We provide genuine, domestically approved Viagra and Cialis — both designed to help manage ED symptoms through improved blood circulation.
Viagra vs. Cialis: Understanding the Difference
Viagra (Sildenafil)
Developed by Pfizer in the United States, Viagra was the world"s first approved ED medication. It reaches peak effectiveness relatively quickly after taking, making it the go-to choice for men who want reliable, fast-acting results. A proven global standard with decades of clinical use.
Cialis (Tadalafil)
Cialis offers a significantly longer duration of effect, eliminating the need to strictly time your medication before intimacy. This flexibility has made it an increasingly popular choice in recent years.
Please see the comparison table below for detailed features.
Feature | Viagra | Cialis |
|---|---|---|
Active Ingredient | Sildenafil | Tadalafil |
Mechanism | PDE5 inhibitor (improves blood flow) | PDE5 inhibitor (improves blood flow) |
Key Characteristics | ・Reaches peak effect quickly ・Promotes strong erectile response | ・Gradual onset with long duration ・Generally associated with milder side effects |
Food Interaction | Moderately affected by meals | Minimal to no effect from meals |
How to Take | Oral tablet Take ~1 hour before intimacy | Oral tablet Take 1–3 hours before intimacy |
Duration of Effect | Approx. 4–5 hours | Up to 36 hours |
Common Side Effects | Facial flushing, headache, palpitations, nasal congestion, vision changes | Headache, flushing, indigestion, back pain, muscle aches |
Important Notes on Prescription
- Self-Pay Medical Care: All ED medication prescriptions at our clinic are not covered by Japanese public health insurance (unapproved for insurance coverage).
- No Impact on Hair Loss: These medications target blood vessels, not male hormones. Taking them will not cause or accelerate male pattern baldness (AGA).
Regenerative Medicine for ED: Beyond Symptom Management
While oral medications offer temporary relief, they only address the symptoms of erectile dysfunction (ED). At Tokyo Relife Clinic, we provide Stem Cell Therapy for ED.
This regenerative medicine utilizes the natural anti-inflammatory properties of your cells, along with vital growth factors like VEGF (Vascular Endothelial Growth Factor). Rather than providing a temporary fix like Viagra, the goal is to repair and rejuvenate the vascular environment that has declined due to aging or tissue damage, helping restore your body"s natural function.
Because this treatment uses your own autologous stem cells — collected, cultured, and administered back into your body — it does not typically cause the side effects associated with oral ED medications, such as headaches, facial flushing, or palpitations. (*As with any medical procedure, risk is not zero: minor bruising at the fat collection site is possible, and in very rare cases, infection may occur.)
A Certified, Regulated Medical Institution
Tokyo Relife Clinic is officially certified to provide this treatment under Japan"s Act on the Safety of Regenerative Medicine, with our treatment plan formally accepted by the Ministry of Health, Labour and Welfare.
If you are unable to take oral ED medications due to underlying health conditions, or if you are seeking a more fundamental approach to your sexual health, please click below for complete details.
- PB3250002: Regenerative medicine using autologous adipose-derived stem cells for erectile dysfunction

PRICE
Oral MedicationsViagra (Sildenafil)
Oral MedicationsCialis (Tadalafil)

Medical Reviewer:Dr. Maki Nakao
With a strong foundation in ophthalmology, Dr. Nakao integrates regenerative medicine and anti-aging medicine into her clinical practice. She is committed to evidence-based advanced medical care, emphasizing meticulous patient communication and individualized treatment planning. Since 2026, she has served as Director of Tokyo Relife Clinic, providing optimized and personalized medical care to each patient.



