When considering ED medication in Tokyo, two commonly prescribed options are sildenafil and tadalafil. Sildenafil is the active ingredient in Viagra, while tadalafil is the active ingredient in Cialis.
Both medications support erectile function by improving blood flow when sexual stimulation occurs. However, they differ in how long they remain effective, how food may affect them, and how they fit into a person’s schedule.
At Pitonne, ED medication may be prescribed following a private online consultation with a partner physician. If a prescription is appropriate, the medication can be arranged for clinic pickup or local delivery.
What Is Erectile Dysfunction?
Erectile dysfunction, or ED, means having ongoing difficulty achieving or maintaining an erection that is firm enough for satisfactory sexual activity.
ED can be related to several factors, including:
- Blood-flow problems
- Diabetes or high blood pressure
- Hormonal conditions
- Certain medications
- Smoking or alcohol use
- Stress, anxiety, or relationship concerns
- Neurological or urological conditions
ED medication can support erectile function, but it does not automatically cause an erection or increase sexual desire. Sexual stimulation is still required.
Sildenafil vs. Tadalafil: What Is the Difference?
Sildenafil and tadalafil belong to a group of medicines called phosphodiesterase type 5 inhibitors, or PDE5 inhibitors.
Sildenafil • Common brand name: Viagra • Typical timing in Japan: Approximately 1 hour before sexual activity • Effective period: Generally shorter acting • Effect of food: Food may delay the onset • Often selected by: People who prefer planned, shorter-duration use
Tadalafil • Common brand name: Cialis • Typical timing in Japan: Approximately 1 hour before sexual activity • Effective period: May support erectile function for up to 36 hours • Effect of food: Can generally be taken without regard to food • Often selected by: People who prefer a longer window and greater flexibility
The longer window associated with tadalafil does not mean that an erection continues for 36 hours. It means the medication may support erectile function during that period when sexual stimulation occurs.
According to the Japanese prescribing information, sildenafil is usually taken once before sexual activity, with at least 24 hours between doses. Tadalafil is also generally limited to one dose per day, although the appropriate dose and interval depend on the person’s health and other medications.
When Might Sildenafil Be Considered?
Sildenafil may be suitable for someone who prefers to take ED medication for a planned occasion rather than having a longer treatment window.
In Japan, sildenafil is generally prescribed at 25 mg or 50 mg and taken approximately one hour before sexual activity. The dose should be determined by a physician based on health history, age, kidney or liver function, other medications, effectiveness, and side effects.
Food may delay the onset of sildenafil. If the medication seems slower to work after a meal, discuss the timing with the prescribing physician rather than taking an additional dose.
When Might Tadalafil Be Considered?
Tadalafil may be considered when a longer effective window is preferred. Clinical studies have found that tadalafil may support erectile function for up to 36 hours after a dose.
This longer window can reduce the need to plan sexual activity around a narrow period. Tadalafil can also generally be taken without regard to meals.
In Japan, tadalafil is commonly taken approximately one hour before sexual activity. The physician will determine the dose and dosing interval based on effectiveness, tolerability, kidney or liver function, and medication interactions.
How Is the Right ED Medication Selected?
Neither medication is automatically better for everyone. The choice may depend on:
- How much flexibility you want
- Whether meals are likely to affect the timing
- How often you expect to use the medication
- Previous experience with ED treatment
- Side effects
- Heart, kidney, or liver conditions
- Blood-pressure medication and other prescriptions
- The physician’s assessment
If one medication does not work as expected, do not increase the dose or combine it with another ED medication without medical advice. Timing, food, stimulation, dosage, and the underlying cause of ED can all affect the result.
Which Medications Require Special Attention?
Before receiving a prescription, provide the physician with a complete list of prescription drugs, over-the-counter medicines, and supplements.
Sildenafil and tadalafil must not be combined with nitrate or nitric oxide–donating medicines because the combination can cause a dangerous drop in blood pressure. Examples include:
- Nitroglycerin
- Isosorbide medications
- Amyl nitrite
- Nicorandil
Riociguat, which is used for certain forms of pulmonary hypertension, is also contraindicated with PDE5 inhibitors.
Additional review may be required if you take alpha-blockers, blood-pressure medication, antifungal medication, antiviral medication, or other drugs that affect how sildenafil or tadalafil is metabolized.
Never stop a prescribed heart or blood-pressure medication to take an ED treatment.
Possible Side Effects
Possible side effects of ED medication include:
- Headache
- Facial flushing
- Nasal congestion
- Indigestion
- Dizziness
- Palpitations
Sildenafil may cause temporary changes in vision, including altered color perception. Tadalafil may be associated with back pain or muscle discomfort in some people.
Seek urgent medical care if you experience:
- An erection lasting four hours or longer
- Chest pain
- Fainting or severe dizziness
- Sudden loss or significant reduction of vision
- Sudden hearing loss
- Difficulty breathing or another severe reaction
If chest pain occurs after taking ED medication, tell emergency personnel exactly what medication you took and when you took it. Do not use nitrate medication unless instructed by an emergency physician who knows about the ED medication.
ED Can Be a Reason to Review Your General Health
ED is not always an isolated sexual-health issue. It may be associated with diabetes, high blood pressure, abnormal cholesterol levels, cardiovascular disease, obesity, smoking, hormonal conditions, or medication effects.
The European Association of Urology recommends evaluating possible underlying conditions and modifiable risk factors when assessing ED.
If symptoms are new, persistent, or becoming more frequent, discuss them honestly during the consultation. Additional evaluation may be appropriate instead of repeatedly using medication without reviewing the possible cause.
How Pitonne’s Online Consultation Works
Pitonne provides physician-guided ED medication consultations for people seeking a private treatment option in Tokyo.
The process generally includes:
- Booking a private online consultation
- Providing information about symptoms, medical history, allergies, and current medication
- Discussing sildenafil, tadalafil, or other appropriate options with the physician
- Receiving a prescription if the physician determines that treatment is appropriate
- Arranging clinic pickup or local delivery
Prescription approval is based on the physician’s assessment. ED medication may not be prescribed when it is not considered medically appropriate.
Frequently Asked Questions
Is sildenafil or tadalafil stronger?
One is not universally stronger than the other. Sildenafil has a shorter treatment window, while tadalafil remains active longer. The better option depends on the desired timing, medical history, other medications, side effects, and individual response.
Can I take sildenafil and tadalafil together?
Do not combine sildenafil, tadalafil, or other ED medications unless a physician has specifically instructed you to do so. Combining them may increase the risk of low blood pressure and other adverse effects.
Does ED medication increase sexual desire?
No. Sildenafil and tadalafil support the physical process involved in an erection when sexual stimulation occurs. They are not aphrodisiacs and do not directly increase libido.
Can I receive ED medication through an online consultation in Tokyo?
Pitonne offers private online consultations with a partner physician. If the physician determines that ED medication is appropriate, clinic pickup or local delivery may be arranged.
Conclusion
Sildenafil and tadalafil are both established options for ED medication in Tokyo, but they differ in duration, food considerations, and how they fit into daily life.
Sildenafil may suit people who prefer planned, shorter-duration use. Tadalafil may offer greater flexibility because its effects can remain available for up to 36 hours. The most appropriate choice should be made after reviewing your health, current medications, and treatment preferences with a physician.
References
- Pitonne: ED Medication
- PMDA: Sildenafil Prescribing Information
- PMDA: Cialis Prescribing Information
- DailyMed: Tadalafil Prescribing Information
- European Association of Urology: Management of Erectile Dysfunction
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