Charan Vegivinti MD Charan Vegivinti MD
Charan Vegivinti MD
Internal Medicine Resident
Charan Vegivinti MD
Internal Medicine Resident

Maximum dose: 80 mg orally 3 times a day IV: 10 mg IV bolus 3 times a day Comments: No adjustment for body weight is required for IV dosing.

Medication Class Effect on Sildenafil Clinical Advice
Nitrates Dangerous blood pressure drop Avoid concurrent use
Alpha-blockers Increased hypotension risk Use with caution
CYP3A4 inhibitors (e.g., ketoconazole) Increase sildenafil levels Dose adjustment may be necessary
Other PDE5 inhibitors Increased side effects Do not combine

The 10 mg IV bolus dose is predicted to provide an equivalent pharmacological effect to that of 20 mg orally.

  • Always use sildenafil 25mg as prescribed by your healthcare provider.
  • Avoid driving or operating machinery until effects are known.
  • Sildenafil does not protect against sexually transmitted infections.
  • Do not share your medication with others.
  • Report any allergic reactions like rash or swelling.
  • Use caution to prevent falls or injuries due to dizziness.

Doses up to a maximum of 80 mg orally 3 times a day are supported by delayed clinical worsening with long-term use in clinical studies despite a lack of observed dose-response improvement in exercise ability in short-term clinical studies.

Parameter Value Notes
Absorption Rapid, within 30-60 minutes Peak plasma levels occur at this time
Bioavailability Approximately 40% Due to first-pass metabolism
Half-life 4-5 hours Duration of effect
Metabolism Liver via CYP3A4 enzyme Variability based on liver function
Excretion Mainly in feces, some in urine Clearance mostly hepatic

In adults 65 years or older, use caution with dose selection due to a higher incidence of compromised renal, cardiac, and/or hepatic function, and of concomitant disease or drug therapy.

6. Response and effectiveness

Are there any safety measures I should take before using this drug? Like most medications, there are precautions you should take before using this drug. Make sure you talk with your doctor about: any other drugs, medications, herbs, or supplements you take or plan to take any medical conditions or surgeries you have or plan to have if you are pregnant or plan to become pregnant There are other drugs available to treat your condition. Some may be better suited for you than others. Talk with your doctor about other drug options that may work for you.

More common

Sildenafil and tadalafil are alike because they both can treat ED and PAH. However, tadalafil has a few distinctions from sildenafil. Tadalafil is the generic name for the erectile dysfunction drug Cialis. There are two versions of the drug: a version that can be taken as needed Cialis 5-mg daily dosing is the only PDE5 inhibitor dose approved for treating an enlarged prostate; improving ED symptoms is an added benefit of the daily dose. Because of the “as needed” version of tadalafil, some users may find this option more convenient.

Does sildenafil interact with other medicines (drug interactions)?

The downside, however, is that side effects tend to last longer too. The main difference between generic sildenafil and Viagra is marketing. The main ingredient in Viagra is sildenafil, meaning that the drugs are essentially the same. However, Viagra is marketed and prescribed strictly for erectile dysfunction, while generic sildenafil can be prescribed for PAH as well. Viagra is also known as “the little blue pill” because of its blue color, while generic sildenafil tends to be a white color. Use: For the treatment of PAH (WHO Group I) to improve exercise ability and delay clinical worsening TABLETS (Viagra) Initial dose: 25 mg orally once a day, as needed, about 1 hour prior to sexual activity Maintenance dose: May titrate up to 100 mg orally once a day, based on effectiveness and toleration.

Product Dosage Quantity + Bonus Price
Viagra Generic25mg60 + 4 Pills71.99€ 68.56€
Kamagra Polo100mg180 + 8 Pills446.52€ 425.26€
Viagra Generic150mg20 Pills55.02€ 52.40€
Kamagra100mg32 Pills121.24€ 115.47€
Viagra Generic100mg180 + 8 Pills199.37€ 189.88€
Kamagra100mg60 + 4 Pills201.34€ 191.75€
Kamagra Polo100mg60 + 4 Pills189.39€ 180.37€
Viagra Generic50mg30 + 4 Pills54.26€ 51.68€
Kamagra Oral Jelly100mg30 + 5 Sachets136.20€ 129.71€
Viagra Generic50mg20 Pills40.52€ 38.59€
Kamagra Oral Jelly100mg110 + 9 Sachets334.87€ 318.92€
Viagra Generic200mg60 + 4 Pills125.19€ 119.23€

Maximum dose: 100 mg orally once a day Comments: This drug may be administered anywhere from 30 minutes to 4 hours before sexual activity.

Dosing & Uses

Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or other healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.

What is sildenafil used for?

RLD / Brand Name: Viagra® Indication: Erectile Dysfunction Click to View Package Insert Click to View Material Data Safety Sheet Viagra® is a registered trademark of Pfizer Inc. RLD / Brand Name: Cialis® Indication: Benign Prostatic Hyperplasia and Erectile Dysfunction RLD / Brand Name: Cialis® Indication:Benign Prostatic Hyperplasia and Erectile Dysfunction Exports To: United States Of America Australia United Kingdom France Singapore United States Of America Australia United Kingdom France Singapore Established in the year of 2026, we “Rich Medex.” are Wholesaler and Exporter of an Erectile Dysfunction Medicine, Antiparasitic Drug, Testosterone Injection, etc. We direct all our activities to cater the expectations of customers by providing them excellent quality products as per their gratification. Moreover, we follow moral business sildenafil 12 5 mg policies and crystal pure transparency in all our transactions to keep healthy relations with the customers.For our accomplishment story, we are grateful to our Miss. Ruchika Dayaldas Harwani, whose continual backing and direction have been useful to us for attaining exponential development in the current market.

What should I know about sildenafil before taking it?

For our accomplishment story, we are grateful to our Miss. All content on this page has been medically reviewed by: Hassan Thwaini, Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm) on 30 March, 2026. Sildenafil is an effective treatment for erectile dysfunction. It contains the same active ingredient as branded alternatives. Sildenafil works by encouraging more blood to flow to the penis, ensuring a strong erection when you need one. A reduced starting dose is recommended in older adults due to higher systemic exposure as compared to younger adults.

4. Bottom Line

It won’t work for viral diseases like influenza or the normal virus. Utilizing any anti-toxin when you needn’t bother with it can make it less powerful for future contaminations. Applies to the following strengths: 10 mg/mL; 10 mg/12.5 mL; 20 mg; 25 mg; 50 mg; 100 mg; 75 mg TABLETS (Viagra) Initial dose: 50 mg orally once a day, as needed, about 1 hour prior to sexual activity Maintenance dose: May increase to 100 mg or decrease to 25 mg once a day, based on efficacy and tolerability. Maximum dose: 100 mg orally once a day Comments: This drug may be taken anywhere from 30 minutes to 4 hours before sexual activity. TABLETS (Revatio)/ORAL SUSPENSION (Revatio, Liqrev): Initial dose: 20 mg orally 3 times a day Maintenance dose: May titrate up to 80 mg orally 3 times a day, if required, based on symptoms and tolerability. TABLETS (Revatio)/ORAL SUSPENSION (Revatio) 1 to less than 18 years: Weight 20 kg or less: 10 mg orally 3 times a day Weight greater than 20 kg to 45 kg: 20 mg orally 3 times a day Weight greater than 45 kg: 20 mg orally 3 times a

  • Sildenafil 25mg is sometimes used off-label for other conditions.
  • Login into your doctor’s advice before adjusting your dose.
  • Take tablets with water; avoid crushing or chewing them.
  • The effects of sildenafil last from 4 to 6 hours.
  • It is not an aphrodisiac and requires sexual arousal for effectiveness.
  • Regular health check-ups are recommended during use.

day; dose may be titrated up to a maximum of 40 mg orally 3 times a day, if required, based on symptoms and tolerability Use: For the treatment of pulmonary arterial hypertension (WHO Group I) to improve exercise ability and, in pediatric patients too young to perform standard exercise

When to See a Doctor

It’s effective for 82% of men.1 Find the clinically proven ED treatment that suits you best. No names, no logos, no delivery fee. 4.6* from over 33,000 people like you. BSc (Hons) MBBS MRCGP AFHEA MA (Hons) AFMCP “Efficacy and Safety of Sildenafil Citrate for Treatment of Erectile Dysfunction in a Population With Associated Organic Risk Factors.” Journal of Andrology (2013). “Efficacy and Safety of Sildenafil Citrate for Treatment of Erectile Dysfunction in a Population With Associated Organic Risk Factors.” Journal of Andrology (2013).

Raynaud's phenomenon

Answer a few simple questions to get the treatment you need. Gramfu 500mg Tablet is an anti-toxin medication used to treat bacterial contaminations in your body. It is viable in contaminations of the lungs (e.g., pneumonia), ear, throat, nasal sinus, urinary plot, skin, delicate tissues, bones, and joints. Forestalling contaminations during surgery is additionally utilized. Gramfu 500mg Tablet ought to be taken with food to keep away from an agitated stomach.

Common Side Effects

You ought to take it routinely at uniformly dispersed stretches according to the timetable recommended by your PCP. Taking it simultaneously consistently will assist you with making sure to take it. The portion will rely upon what you are being treated for, yet you ought to constantly get done with a full course of this anti-microbial as endorsed by your primary care physician. Try not to quit taking it until you have gotten done, in any event, when you feel far improved. Assuming you quit taking it early, a few microorganisms might get by and the disease might return. testing, pulmonary hemodynamics thought to underlie improvements in exercise ERECTILE DYSFUNCTION: Mild to Moderate Renal Dysfunction (CrCl 30 to 80 mL/min): No adjustment recommended Severe Renal Dysfunction (CrCl less than 30 mL/min): Consider a starting dose of 25 mg orally once a day, about 1 hour prior to

Why is this medication prescribed?

Don’t worry about airport X-ray machines. You may need to show airport staff the pharmacy label for your medication. Always carry the original prescription-labeled container with you. Don’t put this medication in your car’s glove compartment or leave it in the car. Be sure to avoid doing this when the weather is very hot or very cold.

Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately:

If you’re taking this drug for PAH, your doctor may monitor your blood pressure and pulse regularly. When filling your prescription, be sure to call ahead to make sure your pharmacy carries it. Many insurance companies require prior authorization for this drug. This means your doctor may need to get approval from your insurance company before your insurance company will pay for the prescription. Sildenafil under the brand name Viagra is prescribed to treat erectile dysfunction by increasing blood flow to the penis during arousal.

Related treatment guides

Sildenafil under the brand name Revatio is often prescribed to help adults with PAH get more exercise by treating their condition. What if I forget to take it? If you are taking Revatio and you forget to take your scheduled dose, take it as soon as possible. However, you should never double your dosage. If you completely miss a dose and it’s time for the next dose, skip the one you missed. sexual activity Mild, Moderate, or Severe Renal Dysfunction (CrCl 80 to less than 30 mL/min): No adjustment recommended ERECTILE DYSFUNCTION: Mild, Moderate, or Severe Liver Dysfunction (Child-Pugh A, B, or C): Consider a starting dose of 25 mg orally once a day, about 1 hour prior to sexual activity.

  • Patients with a history of heart attack should consult a doctor before use.
  • Sildenafil 25mg is effective for many men with mild to moderate ED.
  • Avoid taking other ED medications concurrently.
  • Consuming fatty foods can delay the onset of action.
  • Maintain a healthy lifestyle to enhance medication effectiveness.
  • Be aware of potential low blood pressure symptoms after intake.

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