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Sildenafil Reviews: What Real People Think Of Sildenafil

Last Updated: August 29, 2025
A person’s hand holding out a single teal-colored pill toward another person in a blue shirt, suggesting the offering or administration of medication in a clinical setting.

Sildenafil

In Stock
As low as $109/Mo
  • Improved erectile function
  • Increased confidence
  • May reduce cardiovascular disease risk
NAD+ Vial

Sildenafil, the generic form of Viagra, is one of the best-selling erectile dysfunction drugs of all time.  Not only is it extremely effective in treating ED in most men, but it’s generally seen as quite safe, affordable, and convenient.

As the prevalence of ED increases with age, the development of sildenafil and other oral ED medications has been a boon to the sex lives and sexual fulfillment of an aging population in the US and abroad.

One of the best ways to see the positive effects and gauge customer satisfaction with a product is through sildenafil reviews and customer feedback.  To that end, we will look at some sildenafil reviews below from customers who have purchased sildenafil (generic Viagra) from Invigor Medical, to see how it has worked for them.

Of course, every person is unique and responds to medications in their own way.  Just because some or many others have given positive sildenafil reviews and succeeded with the medication does not guarantee that you will.  

The body of evidence suggests that most men can see anywhere from mild to significant gains in erectile function from the class of drugs (PDE-5 inhibitors) to which sildenafil belongs.  Still, it’s always worth mentioning that if you are suffering from ED and considering sildenafil – or any other treatment – you should thoroughly discuss your options with your doctor or prescriber.  

Be sure to discuss any medical conditions, other medications you may take, vitamin supplements, and herbal remedies to ensure that sildenafil is right for you. 

With that disclaimer out of the way, let’s cover some basics of what sildenafil is, and how it works, before moving on to our top sildenafil reviews that we’ve received from satisfied customers at Invigor Medical.

What Is Sildenafil?

We’ve written more extensively in other articles on our site about sildenafil and its molecular mechanisms.  However, in this compilation of sildenafil reviews, we thought a brief revisiting of the basics of sildenafil was in order.

Sildenafil is a type of oral medication designed to treat erectile dysfunction.  It goes to work within 30 minutes to two hours, and its effects last for 3 to 5 hours in most patients.  It is known as a PDE-5 inhibitor because its mechanism of action is binding to the enzyme, PDE-5, thus inhibiting its natural function for a time. 

PDE-5 is normally found in the body and works in the chemical pathway, which inactivates the effects of nitric oxide.  Since nitric oxide is an essential component of achieving and maintaining an erection by increasing blood flow, reducing PDE-5 functionality increases functional nitric oxide levels making it easier to get an erection suitable for sex and maintain it.

How and Where to Buy Generic Viagra online

Sildenafil Availability

Until recently, sildenafil was only available under the brand name Viagra.  However, it has now gone off-patent and is produced as a generic medication.  Whether purchased as sildenafil or Viagra, it is only available with a prescription.  

A patient must be prescribed sildenafil to treat erectile dysfunction after consultation with their doctor.  While it is considered safe with few side effects, all medications can potentially cause adverse effects.  Abuse or misuse can also lead to harmful complications, up to and including those that may cause permanent damage to the penis.  

Therefore, men must discuss all the details of their health conditions, medical history, and medication portfolio with their healthcare provider to ensure that sildenafil will be well-tolerated and won’t interact with anything else being taken.

Is Sildenafil Right for You?
Ready to Reclaim Confidence? See if Sildenafil Can Help.

The Benefits of Sildenafil

Prescribed Viagra, Sildenafil as its generic brand, is known to have several great benefits. In addition to saving a ton of money compared to the name brand, here are some benefits you’re likely to experience:

Treatment of Erectile Dysfunction (ED): The primary and most well-known benefit of sildenafil is its effectiveness in treating erectile dysfunction. Erectile dysfunction is a condition where a man has difficulty achieving or maintaining an erection sufficient for sexual activity. 

Better Mood: When you’re able to perform, it’s likely to result in increased confidence and a better feeling of self-worth. 

Counteracts Antidepressants: Many antidepressant medications are known for causing issues with sexual activity. Taking sildenafil is a great way to be able to stay on your medication without experiencing the negative aspects in the bedroom.

Sildenafil Infographic

Common Side Effects of Sildenafil

Here are some mild side effects you may experience after taking sildenafil: 

Slight Headaches: Headaches are the most commonly reported side effect but they are usually temporary and mild. 

Flushing: Some individuals may experience facial flushing or redness due to increased blood flow.

Upset Stomach: Sildenafil can cause gastrointestinal discomfort, leading to symptoms like indigestion, stomach ache, or acid reflux.

Sildenafil Reviews And Feedback From Customers

Without further ado, let’s get to some of the top sildenafil reviews we’ve received as feedback from our customers.  There are a number of sildenafil 50 mg reviews as well as sildenafil 60 mg reviews and more. 

These reviews may be about their experience in obtaining sildenafil from Invigor Medical, the efficacy of the medication itself, or any other aspect of the consultation, prescribing, and treatment process with sildenafil. 

Concluding Thoughts

The above are just some of the sildenafil reviews that we’ve received from our customers.  They are meant to provide insight for new customers, who are considering sildenafil to treat their ED for the first time, or who may be considering Invigor Medical for the first time.  

We encourage you to read the other articles about sildenafil on our site, in addition to these sildenafil reviews, to get a good sense of what the medication is, how it works, and the experiences of real people with taking it for ED treatment.  

Then, when you’re ready, schedule an online consultation with Invigor Medical, and talk to one of our doctors about your ED and treatment needs. It should also be noted that because Sildenafil and other oral medications only play a single role in supporting sexual function, there are a number of other options to improve your sex life. If you’re interested, you can buy sildenafil and other relevant medications through our platform.

Sildenafil

In Stock
As low as $109/Mo
  • Improved erectile function
  • Increased confidence
  • May reduce cardiovascular disease risk
NAD+ Vial

Written by

Derek Berkey
Derek Berkey
CEO, Invigor Medical | Science-Based Wellness Expert
Derek Berkey is the Chief Executive Officer of Invigor Medical, a telehealth company specializing in weight management, sexual health, and healthy aging. He serves as an author and reviewer, ensuring all content is grounded in science-based, patient‑centered insight.

Medically Reviewed By

Medical Review Process
Every article on Invigor Medical is reviewed by licensed medical professionals to ensure accuracy, clarity, and clinical relevance. Our editorial team works closely with practitioners to verify that content reflects current research, guidelines, and best practices.
Disclaimer and Medical Information
The content provided in this article is for informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always consult with a licensed healthcare provider regarding any medical concerns, conditions, or treatments. Do not disregard medical advice or delay seeking it because of something you have read on InvigorMedical.com.

Invigor Medical does not offer emergency medical care. If you are experiencing a medical emergency, call 911 or go to the nearest emergency room immediately.

Medical treatments discussed on this site may not be appropriate for everyone. All medications require a prescription from a licensed healthcare provider following an appropriate telehealth consultation, and treatment decisions should be made on an individual basis.
Derek Berkey
Derek Berkey
CEO, Invigor Medical | Science-Based Wellness Expert
Derek Berkey is the Chief Executive Officer of Invigor Medical, a telehealth company specializing in weight management, sexual health, and healthy aging. He serves as an author and reviewer, ensuring all content is grounded in science-based, patient‑centered insight.

Medication Disclaimer

Important Safety Information