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What is Sildenafil: Uses, Working, Side Effects, and more

Julian Carter


what is sildenafil

Sildenafil is a popular Erectile Dysfunction (ED) medication that is often sold under the brand name Viagra. The medicine improves the blood flow to your penis during sexual arousal and helps you attain and maintain an erection.

However, you should be careful and do some self-research before using any ED medication. The article explores more about Sildenafil, its uses, dosage, side effects, and more.

What are Sildenafil tablets prescribed for

Sildenafil is an FDA-approved medication for Erectile Dysfunction (ED) and Pulmonary Arterial Hypertension (PAH). Erectile Dysfunction refers to the difficulty in getting and maintaining an erection.

Sildenafil was originally intended to treat Hypertension and Angina Pectoris. However, researchers observed an unexpected yet remarkable side effect during clinical trials – improved erectile function in male participants.

Sildenafil is prescribed for ED as it helps treat ED symptoms and promotes an erection during sexual intercourse.

Additionally, doctors also prescribe Sildenafil for PAH, as it helps improve blood flow by relaxing the blood vessels in the lungs.

Are you curious about how long Sildenafil lasts? Read: How long does Sildenafil last?

Sildenafil: Dosage and working

The recommended Sildenafil dosage for ED ranges from 25mg to 100mg. Sildenafil tablets contain an active ingredient called Sildenafil Citrate and should be taken only once per day. 

However, doctors may adjust your dose according to your age or the severity of your ED. Viagra (Sildenafil) belongs to the Phosphodiesterase (PDE) Inhibitors group. 

The medication works by blocking the PDE type-5 enzyme and increases the blood flow to the penis during sexual stimulation. This increased blood flow helps promote male erection

On the other hand, the doses of Sildenafil pills for PAH are available in 10mg and 20mg. It should be taken three times a day. Always take erection pills after consulting a doctor, and carefully follow the directions on the prescription label.

Explore the workings of Sildenafil for ED in detail. Read: How Does Sildenafil Work to Treat Erectile Dysfunction?

How and when to take Sildenafil

Sildenafil is available in the form of tablets and suspension (liquid). Therefore, you can take Sildenafil orally with a glass of water.

It is best to take this medication on an empty stomach, as consuming food can delay its onset of action. Additionally, you should take Sildenafil approximately one to four hours before sexual activity for the medication to work effectively. 

Consult a doctor to learn how to take Sildenafil safely.

Are there any Sildenafil interactions

A man taking viagra pills
A man taking viagra pills

In most cases, Sildenafil is a safe medicine. However, certain medications and food items can result in Sildenafil interactions

The medicines that may interact with Sildenafil include

  • Nitrates
  • Alpha-blockers
  • Guanylate cyclase stimulators
  • Other ED medicines 
  • Other PAH medicines
  • Nutritional supplements and more

Inform your doctor if you are taking any non-prescription medications, as they may also interact with Sildenafil. Additionally, you should also avoid grapefruit, pomelo, high-fat meals, and alcohol while taking Viagra.

Certain medical conditions can also lead to side effects by affecting the working of Sildenafil. These medical conditions include cardiovascular disease, Sickle Cell Disease, liver disease, and more.

Consult a certified doctor for other Erectile Dysfunction pills if you are experiencing severe Sildenafil interactions.

Want to explore some amazing food items that can help with your ED journey naturally? Read: 10 Foods That Kill Erectile Dysfunction

Avoid smoking tobacco or weed, as it may interact with Sildenafil and reduce its effectiveness.

Sildenafil side effects

A man suffering from headache
A man suffering from headache

The common Sildenafil side effects include headaches, flushing, nasal congestion, dizziness, and visual disturbances. However, Sildenafil can also lead to some severe side effects in rare cases.

The rare side effects include Priapism (prolonged erection), sudden hearing loss, or allergic reactions. You should always take the prescribed dosage and consult a doctor if you experience any of the above side effects.

Curious about the effectiveness of Sildenafil for women? Read: Is Sildenafil For Women Safe?

Do not buy Sildenafil without a valid prescription, as it may increase the chances of facing side effects.

Key takeaways

Sildenafil is a common medication used to treat Erectile Dysfunction and Pulmonary Arterial Hypertension (PAH). The medicine is available in the form of oral tablets and liquid.

Sildenafil (Viagra) dosage for ED ranges from 25mg to 100mg, whereas for PAH, the dosage ranges from 10mg to 20mg. Viagra promotes an erection by boosting the blood flow to the penis during sexual stimulation.

However, Sildenafil can lead to some potential interactions and side effects. The common Sildenafil side effects include headaches, flushing, nasal congestion, dizziness, and visual disturbances. 

Consult a doctor for a proper Sildenafil prescription.

Frequently Asked Questions

What can I do to make Sildenafil work faster?

You should take Sildenafil about an hour before sexual intercourse on an empty stomach for maximum results. Eating food before Sildenafil consumption can reduce its effectiveness. 
Lastly, avoid Sildenafil and alcohol together to speed up its absorption.

Can women use Sildenafil?

No, the FDA has not approved Viagra for women. The safety and efficacy of Sildenafil (Viagra) use in women have not been well studied. 
Consult your doctor for other women’s sexual health medication options.

Are there any Sildenafil warnings?

Yes, there are several warnings associated with Sildenafil use. Individuals with cardiovascular disease, liver impairment, or more should use Sildenafil with caution. 
Also, avoid nitrates, alpha-blockers, alcohol, and grapefruit juice, as they can interact and increase the risk of side effects.

How to store Sildenafil?

You should store Sildenafil tablets at room temperature, away from moisture and heat. 
Also, always keep them in their original packaging to protect them from light and humidity. Make sure your medicines are out of reach for children and pets.

Are Sildenafil and Viagra the same?

Yes, the two are essentially the same medication. Sildenafil vs. Viagra is a common debate among people. 
Sildenafil is the active ingredient found in Viagra, and both medications are used to treat ED. The main difference lies in their branding and marketing, as Viagra is the more recognized brand name.

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