Viagra® or Sildenafil. Is there a difference?

Erectile dysfunction (ED) is a medical condition affecting millions of men worldwide, leading to challenges in maintaining or achieving an erection sufficient for sexual activity. Fortunately, medical advances have brought effective treatments to the fore, with Viagra® being arguably the most famous. The ‘original little blue pill’ has certainly changed the way we view a once taboo topic like ED, and importantly, that it can be treated. Viagra® is now over 25 years old and it could be said it’s a ‘tried and true’ rock star in the world of treating ED.

Similar treatments are available but there’s only one Viagra®.

What is Viagra®

Viagra® is a PDE5 inhibitor, a class of medicine that works by relaxing blood vessels and improving circulation, making it easier for men to achieve and sustain an erection. The active ingredient in Viagra® is sildenafil citrate, a compound developed in the late 80s and originally intended to combat coronary heart disease. Initial tests showed it was ineffective in this pursuit, but curiously, one side-effect was a heightened ability to achieve and maintain an erection. Focus then shifted to how sildenafil citrate, later branded Viagra®, could help combat ED. 

Viagra® or Sildenafil

When Viagra® went on sale in the early 90s, it was the only sildenafil in the market. However, once its exclusivity period ended in 2020 (most medicines come off patent after 15-20 years), generic or bioequivalent products entered the market. This is the normal process of market development for medicines. Ultimately however, when it comes to the sildenafil brand you are prescribed or dispensed, speak to your doctor or pharmacist, if you have a specific brand preference.

What To Know Before Using Viagra®

Before starting Viagra®, it’s crucial to understand how the medication works and how to use it safely. Here are some essential considerations:

1. Consult Your Doctor or Prescribing Pharmacist First – Erection problems are often a symptom of a more serious underlying health condition such as heart disease, diabetes, or even psychological issues. Your doctor can help identify root causes, if any, and ensure that Viagra® or sildenafil, if appropriate, is the right treatment for you.

2. How to Take Viagra®

• Take approximately one hour before sexual activity.

• Swallow the tablet whole with a glass of water.

• To avoid a delay in effectiveness, take Viagra® on an empty stomach or 2 hours after a meal.
• Do not take more than one dose in any 24-hour period.


3. Who Should Avoid Viagra®?

Viagra® is not suitable for everyone. Your doctor or pharmacist may advise you not take Viagra® if…

• You have severe heart or liver problems

• Have recently suffered a stroke or heart attack

• Have low blood pressure or uncontrolled high blood pressure

• Are allergic to sildenafil or any of its ingredients


4. Be Patient: Viagra® requires sexual stimulation. Basically, you’ve got to be in the mood for it to work so take your time and focus on intimacy first.


If you’re ready to take the first step towards treating your ED with Viagra®, you’ll need to speak to a doctor or prescribing pharmacist. To find out who you should see first, click here.

TAPS  NP22293 FEB25