MEDIGRA-25

# Sildenafil 25 mg ## Short Description Sildenafil 25 mg is a **prescription medicine** belonging to a group of medicines called phosphodiesterase type 5 (PDE5) inhibitors. It is commonly used to treat **erectile dysfunction (ED)** in adult men. Sildenafil helps increase blood flow to the penis when sexual stimulation is present. > **Important:** Sildenafil does not increase sexual desire and does not cause an erection without sexual stimulation. ## Key Benefits * Helps improve erectile function in men with erectile dysfunction * Helps achieve and maintain an erection when sexually stimulated * Works by increasing blood flow to the penis * May provide an effective treatment option for erectile difficulties * 25 mg is a lower available strength and may be suitable for some patients based on medical assessment ## Uses / Indications Sildenafil 25 mg may be prescribed for: * **Erectile dysfunction (ED)** in adult men * Difficulty achieving or maintaining an erection sufficient for sexual activity Sildenafil is also used in different strengths and formulations for **pulmonary arterial hypertension (PAH)**, but dosing for PAH is different and should not be substituted with an ED regimen. ## How It Works Sildenafil is a **PDE5 inhibitor**. During sexual stimulation, nitric oxide is released in the erectile tissue, increasing levels of cyclic GMP (cGMP). Sildenafil inhibits the PDE5 enzyme, helping maintain cGMP levels and promoting relaxation of smooth muscle in the penis. This increases blood flow to the penis and helps produce an erection when sexual stimulation occurs. ## Dosage & Administration * Take Sildenafil 25 mg exactly as directed by your doctor * For erectile dysfunction, the usual starting dose for many adults is **50 mg**, but **25 mg may be recommended** depending on age, health conditions, other medicines or individual response * Take approximately **30–60 minutes before sexual activity** * Sildenafil may remain effective for several hours, although the exact duration varies between individuals * Do not take more than **one dose in a 24-hour period** unless specifically directed by a healthcare professional * It can be taken with or without food * A high-fat meal may delay the onset of action * Swallow the tablet with water * Sexual stimulation is required for sildenafil to work * Do not increase the dose if the medicine does not work as expected without consulting your doctor * Do not use sildenafil with other medicines for erectile dysfunction unless specifically instructed by a healthcare professional ## Side Effects Common side effects may include: * Headache * Facial flushing * Indigestion * Nasal congestion * Dizziness * Nausea * Visual disturbances, such as changes in colour perception or blurred vision Less common or serious side effects may include: * Sudden decrease or loss of vision * Sudden decrease or loss of hearing * Severe allergic reaction * Chest pain * Fainting * Prolonged or painful erection Seek **urgent medical attention** if an erection lasts more than **4 hours**, or if sudden vision or hearing loss occurs. ## Precautions & Warnings * **Never take sildenafil with nitrate medicines** such as nitroglycerin, isosorbide dinitrate or isosorbide mononitrate because the combination can cause a dangerous fall in blood pressure * Do not use sildenafil with recreational nitrate-containing substances such as **"poppers"** * Tell your doctor if you have heart disease or have previously been advised to avoid sexual activity * Tell your doctor if you have low blood pressure or uncontrolled high blood pressure * Inform your doctor about previous stroke or heart attack * Tell your doctor if you have severe liver or kidney problems * Use caution if you have a condition that may predispose you to prolonged erections * Sildenafil may cause dizziness or temporary visual changes; avoid driving if affected * Avoid excessive alcohol because it may worsen dizziness and reduce erectile function * Do not use more than the prescribed amount * Tell your doctor about all medicines and supplements you take * Seek emergency medical care for chest pain during or after sexual activity * Keep out of reach of children ## Drug Interactions Important interactions include: * **Nitrates** — contraindicated because of the risk of severe hypotension * **Riociguat** — should not be combined with sildenafil because blood pressure may fall dangerously * **Alpha-blockers** — may cause symptomatic low blood pressure * Other antihypertensive medicines — may enhance blood-pressure-lowering effects * **Strong CYP3A4 inhibitors** such as ritonavir and some azole antifungals — may increase sildenafil levels * Certain macrolide antibiotics, such as erythromycin or clarithromycin, may increase sildenafil exposure * Other PDE5 inhibitors — should not generally be combined with sildenafil * Other erectile-dysfunction treatments — combination should only be used under medical supervision * Alcohol — may increase dizziness and can make erectile difficulties worse Tell your doctor or pharmacist about all prescription medicines, OTC medicines, vitamins and herbal supplements you take. ## Storage Information * Store according to the manufacturer's instructions * Keep tablets in their original packaging * Protect from excessive heat, moisture and direct sunlight * Keep the container tightly closed * Store at the temperature specified on the product label * Keep out of reach and sight of children * Do not use after the expiry date ## Prescription Status Sildenafil 25 mg is generally a **prescription medicine** for erectile dysfunction. Prescription and dispensing requirements may vary by country. Use sildenafil only after appropriate medical evaluation, particularly if you have cardiovascular disease or take medicines that affect blood pressure. ## Genuine Medicine Assurance * Purchase Sildenafil 25 mg only from a licensed and reputable pharmacy * Use it only against a valid prescription where required * Check the medicine name, strength, manufacturer, batch number and expiry date * Ensure the packaging and seal are intact * Confirm that the strength matches your prescription * Avoid products sold as "herbal Viagra" or products from unverified online sources * Do not use tablets from damaged or suspicious packaging * Purchase medicines from authorized sources * If you suspect the medicine is counterfeit, consult a pharmacist or the appropriate medicine regulatory authority ## Frequently Asked Questions ### What is Sildenafil 25 mg used for? Sildenafil 25 mg is primarily used to treat **erectile dysfunction (ED)** in adult men. It helps improve blood flow to the penis during sexual stimulation. ### How does Sildenafil 25 mg work? Sildenafil blocks the PDE5 enzyme, helping increase blood flow to the penis by maintaining levels of cGMP. Sexual stimulation is still necessary for an erection. ### How long does Sildenafil 25 mg take to work? Sildenafil usually starts working within **30–60 minutes**. The response can vary depending on the individual, food intake and other factors. ### How long does Sildenafil last? Sildenafil can help with erectile function for several hours after taking a dose. It does not mean that an erection will last for several hours; sexual stimulation is required. ### Is Sildenafil 25 mg enough? For some people, 25 mg may be an appropriate dose, particularly when a lower dose is recommended because of age, other medicines or medical conditions. Your doctor should determine the appropriate dose. ### Can I take Sildenafil 25 mg every day? Sildenafil for erectile dysfunction is generally taken **as needed**, not more than once in 24 hours. A doctor may recommend a particular schedule based on your circumstances. ### Can Sildenafil be taken with food? Yes. Sildenafil can generally be taken with or without food. However, a high-fat meal may delay how quickly it starts working. ### Can I take Sildenafil with alcohol? Large amounts of alcohol can increase dizziness and lower blood pressure and may also make it more difficult to achieve an erection. Limit alcohol while using sildenafil. ### Does Sildenafil increase sexual desire? No. Sildenafil does not directly increase sexual desire or libido. It helps improve blood flow and erectile function when sexual stimulation occurs. ### Does Sildenafil work without sexual stimulation? No. Sildenafil generally requires **sexual stimulation** to produce an erection. ### Can women take Sildenafil 25 mg? Sildenafil has specific medical uses in certain conditions, including pulmonary arterial hypertension. It should not be used for sexual dysfunction in women unless specifically prescribed for an appropriate medical indication. ### Can young men take Sildenafil? Sildenafil may be prescribed to adult men with erectile dysfunction when medically appropriate. Erectile difficulties in younger men should be evaluated to identify possible physical, psychological or medication-related causes. ### Can Sildenafil cause low blood pressure? Yes. Sildenafil can lower blood pressure, particularly when combined with nitrates, alpha-blockers or certain other blood-pressure-lowering medicines. ### Can Sildenafil be taken with blood-pressure medicine? Some blood-pressure medicines can be taken with sildenafil, but the combination may increase the blood-pressure-lowering effect. Tell your doctor about all your medicines before taking sildenafil. ### Can Sildenafil be taken with nitrates? **No. Sildenafil must not be combined with nitrate medicines.** This combination can cause a potentially dangerous drop in blood pressure. ### Can Sildenafil be taken with Tamsulosin? Tamsulosin is an alpha-blocker. Combining it with sildenafil can sometimes cause low blood pressure or dizziness. A healthcare professional should determine whether the combination and doses are appropriate. ### Can Sildenafil cause headache? Yes. Headache is one of the most common side effects of sildenafil. ### Can Sildenafil affect eyesight? Temporary visual changes can occur, such as blurred vision or changes in colour perception. **Sudden vision loss is an emergency** and requires immediate medical attention. ### Can Sildenafil cause hearing loss? Rarely, sudden hearing loss has been reported. Stop using the medicine and seek urgent medical attention if sudden hearing loss or significant hearing changes occur. ### What happens if Sildenafil causes an erection lasting more than 4 hours? An erection lasting more than 4 hours is a **medical emergency** because it can cause permanent damage to penile tissue. Seek immediate emergency medical treatment. ### Can Sildenafil be used after a heart attack? This depends on your cardiovascular condition and whether sexual activity is considered safe. Consult your doctor before using sildenafil if you have had a heart attack or have significant heart disease. ### Can Sildenafil be taken with other erectile dysfunction medicines? Do not combine sildenafil with other PDE5 inhibitors or erectile-dysfunction medicines unless specifically directed by a healthcare professional. ### Is Sildenafil addictive? Sildenafil is not generally considered physically addictive. However, it should be used responsibly and only as directed by a healthcare professional. ### What should I do if I miss a dose of Sildenafil? Sildenafil for erectile dysfunction is usually taken as needed, so there is generally no scheduled dose to make up. Do not take extra tablets to compensate. ### Can Sildenafil cure erectile dysfunction? Sildenafil helps manage erectile dysfunction but does not necessarily cure its underlying cause. Persistent ED may be associated with diabetes, cardiovascular disease, hormonal problems, medications or psychological factors and should be evaluated medically. ### Can Sildenafil be used during pregnancy? Sildenafil for erectile dysfunction is not indicated for use in women. Pregnancy-specific uses of sildenafil require specialist medical supervision. ### Can Sildenafil be used while breastfeeding? Sildenafil should not be used during breastfeeding unless specifically recommended by a healthcare professional for an appropriate medical indication. ## Medical Disclaimer This information is provided for general educational and SEO purposes only and is not a substitute for professional medical advice, diagnosis or treatment. **Sildenafil 25 mg is a prescription medicine and should be used only under the guidance of a qualified healthcare professional.** Never combine sildenafil with nitrate medicines or recreational nitrate products such as "poppers," as this can cause a dangerous drop in blood pressure. Seek immediate medical attention for an erection lasting more than 4 hours, sudden vision or hearing loss, severe allergic reactions, fainting or chest pain.