Moderate alcohol consumption usually does not interfere with the effectiveness of sildenafil, but excessive drinking can increase the likelihood of side effects such as dizziness, headache, or low blood pressure. It is advisable to limit alcohol intake when planning sexual activity.
A prolonged erection (priapism) is a medical emergency. Seek immediate medical attention, as delayed treatment can lead to permanent damage to penile tissue.
Both products contain the same active ingredient, sildenafil, in the same 100 mg strength. Differences, if any, may relate to inactive ingredients or manufacturing processes, which are not clinically significant for most patients.
Sildenafil can be used by men with well-controlled hypertension. However, it should be avoided in cases of severe uncontrolled high blood pressure, and the prescribing physician should evaluate cardiovascular risk before initiating therapy.
A fatty meal can delay the absorption of sildenafil, potentially postponing the onset of action by up to an hour. Taking the pill on an empty stomach may provide a quicker response.
Some herbal supplements, such as ginkgo biloba or yohimbine, may affect blood pressure or interact with the metabolism of sildenafil. Discuss all supplement use with a healthcare professional.
The pharmacologic effect of a 100 mg dose usually diminishes within 4-6 hours, though individual response can vary based on age, metabolism, and health status.
Sildenafil does not have a direct effect on coagulation. However, if you are on anticoagulants, your physician should review your overall medication regimen to ensure safety.
Sildenafil is not approved for use in women, and its safety and efficacy for female sexual dysfunction have not been established. Women should discuss alternative treatments with their healthcare provider.
Do not flush tablets down the toilet. Return them to a pharmacy’s medication-take-back program or follow local waste-disposal guidelines to prevent accidental ingestion by others.
Viagra Professional contains sildenafil as its active ingredient. It is available as a 100 mg pill and is classified as a prescription medication for the treatment of erectile dysfunction (ED) in Hong Kong.
Sildenafil belongs to the class of phosphodiesterase-5 (PDE5) inhibitors. By blocking the PDE5 enzyme, it prevents the breakdown of cyclic guanosine monophosphate (cG ). Elevated cG levels relax smooth muscle in the penile arteries, allowing increased blood flow during sexual stimulation.
Off-label use requires medical supervision and individualized risk assessment.
Absolute contraindications
Relative contraindications
Special populations
Patients should inform their healthcare provider of all medicines, supplements, and herbal products before starting Viagra Professional.
This article provides educational information about Viagra Professional and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.
