Medically reviewed by Jessica Swirble, PharmD
Last updated on 4/20/2024

Drug Information | Side Effects | Use & Dosage | Request a Prescription

Sildenafil is available in the following forms:

• Oral tablets (25mg, 50mg, 100mg)
  
  

The typical starting dose of sildenafil varies depending on the condition being treated, the severity of symptoms, and individual patient factors. It is important to follow your healthcare provider's instructions regarding dosage and administration.

For erectile dysfunction, the typical starting doses may be:

• Oral tablets: 50mg taken about one hour before sexual activity. Based on effectiveness and toleration, the dose may be adjusted to a maximum recommended dose of 100mg or decreased to 25mg.
  
  

Your healthcare provider will determine the most appropriate dose based on your medical history, current medications, and response to treatment.

Sildenafil should be taken exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment without consulting your provider.

If you have any questions about your dosage or need adjustments, contact your healthcare provider for guidance. If you need immediate medical advice or assistance, consider scheduling an online doctor appointment through a platform like Sesame.

For ED:

• Since sildenafil is taken as needed for ED, there is no specific missed dose protocol. Take the missed dose as soon as you remember, and continue with your regular dosing schedule.
  
  

For PAH:

• If you miss a dose of sildenafil for PAH, take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not take extra doses to make up for the missed one.
  
  

Continue taking sildenafil as prescribed, even if you start feeling better. Do not stop taking it without consulting your healthcare provider.

Store sildenafil tablets at room temperature, away from moisture, heat, and light. Keep the medication in its original packaging and out of reach of children.