ED medication is available for online prescription.
Order OnlineWhat is ED?
ED (Erectile Dysfunction) refers to the inability to achieve or maintain an erection sufficient for sexual intercourse. While it tends to increase with age, it can also occur in younger generations due to lifestyle habits, stress, and other factors.
Causes of ED
The causes of ED are broadly categorized into "organic," "psychological," and "mixed."
|
Category |
Primary Causes |
Characteristics |
|
Organic ED (Vascular) |
Arteriosclerosis, high blood pressure, diabetes, smoking, dyslipidemia |
Occurs due to reduced blood flow to the penis itself. Strongly related to lifestyle diseases. |
|
Organic ED (Neurological) |
Diabetic neuropathy, spinal cord injury, sequelae of pelvic surgery |
Occurs when nerve signals necessary for erection are impaired. |
|
Organic ED (Hormonal) |
Age-related decline in testosterone |
Often accompanied by decreased libido. |
|
Psychological ED |
Stress, anxiety, depression, relationship issues with a partner |
Often characterized by morning erections, but difficulty during sexual activity. |
|
Drug-induced ED |
Side effects of certain medications, such as antihypertensives and antidepressants |
Medications being taken may be a contributing factor. |
In many cases, it is considered "mixed ED," a combination of these causes. For those with lifestyle diseases, reviewing lifestyle habits is important in conjunction with ED treatment.
How ED Medications Work
ED medications (Viagra, Levitra, Cialis, etc.) are all classified as "PDE5 inhibitors." When sexually stimulated, the blood vessels in the penis produce more cGMP through nitric oxide (NO), which causes the blood vessels to expand and blood flow to increase, leading to an erection. PDE5 (phosphodiesterase type 5) is an enzyme that breaks down this cGMP. PDE5 inhibitors block the action of this enzyme, maintaining cGMP levels and facilitating the blood flow necessary for an erection.
PDE5 inhibitors only work when there is sexual stimulation. Taking them without stimulation will not cause an erection.
Differences between Medications
|
Viagra (Sildenafil) |
Levitra (Vardenafil) |
Cialis (Tadalafil) |
|
|
Onset of Effect (目安) |
Approx. 1 hour after intake |
Approx. 30 minutes to 1 hour after intake (relatively fast) |
Approx. 1 to 2 hours after intake |
|
Duration of Effect (目安) |
Approx. 4-6 hours |
Approx. 5-10 hours |
Approx. 24-36 hours (long-acting) |
|
Food Impact |
Highly affected (absorption slowed by fatty meals) |
Less affected than Viagra |
Minimally affected |
|
Characteristics |
Long history of use, highly regarded for its efficacy |
Relatively fast onset of action |
Known as the "weekend pill" due to its long duration, allowing for flexible timing. |
Who Each Medication Is Suited For
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Viagra: For those seeking strong effects and a proven medication.
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Levitra: For those who want a relatively quick onset of effect.
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Cialis: For those who want to use it flexibly without worrying about timing (less affected by food).
Side Effects
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Facial flushing/warmth, headache (due to vasodilation)
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Palpitations
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Mild stomach discomfort
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Rarely, temporary visual disturbances (e.g., changes in color perception)
Medications Requiring Caution with Concomitant Use
Patients taking nitrates (e.g., nitroglycerin, used for angina) cannot use ED medications. There is a risk of a sudden drop in blood pressure, so please inform your doctor about all medications you are currently taking during your consultation.
Online Treatment Process
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① Provisional payment・Pre-consultation: Please enter information about pre-existing conditions, medications you are taking, etc.
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② Online consultation: A doctor will confirm suitability via video call and suggest medication.
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③ Shipping as early as the same day: Delivered in discreet packaging.
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④ You can consult online again about effectiveness and side effects.
