A blister package of Sildenafil, also known as Viagra, on a blue background.

Erectile dysfunction prescriptions: Comparing ED medication options

December 18, 2025
Orawan Pattarawimonchai // Shutterstock

Erectile dysfunction prescriptions: Comparing ED medication options

Choosing the right erectile dysfunction medication can feel overwhelming for many people who are trying to understand how ED drugs differ in effectiveness, timing, side effects, and cost. With several trusted PDE 5 inhibitors available, men often look for clear comparisons that explain which medication fits their lifestyle. Since prescription costs continue to rise, affordability has also become a central part of the conversation.

The guide from SaveHealth, a prescription discount card website, breaks down the major ED medications so you can approach your treatment options with clarity and confidence.

How Erectile Dysfunction Medications Work

Nearly all prescription ED drugs fall into the category of PDE 5 inhibitors. These medications work by increasing blood flow to the penis during sexual stimulation, which helps men achieve and maintain erections more consistently.

What PDE 5 inhibitors do

  • Increase nitric oxide levels in the body, which activates an enzyme, guanylate cyclase, to produce cGMP (cyclic guanosine monophosphate).
  • cGMP triggers to help relax smooth muscle tissue in the penis.
  • Improve blood vessel dilation.
  • Support stronger and more sustained erections.
  • Require sexual arousal to be effective.
  • Do not influence libido.

Understanding how these medications work makes it easier to select the best option based on timing, duration, or personal preference. Cost can also play an important role. Some men learn quickly that switching brands or exploring generics can reduce spend significantly.

Most Common ED Medications

The four major prescription ED drugs available today are sildenafil, tadalafil, vardenafil, and avanafil. Each offers a unique profile that suits different needs.

ED Medication Comparison Table

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A table listing medications and their common brand name, onset time, duration, and what they are best for.
SaveHealth


This type of comparison helps highlight how lifestyle habits influence the best ED medication choice. Some men prefer longer action so they do not have to plan ahead, while others prefer shorter-acting tablets that can be taken only when needed. Cost differences also become more noticeable when comparing medications.

Effectiveness of Major Erectile Dysfunction Drugs

All four medications are considered effective for erectile dysfunction, but each drug has distinguishing characteristics that influence user preference.

Sildenafil

Sildenafil (Viagra) was the first approved ED medication by the FDA and remains a reliable choice. It has a strong reputation and has helped millions of men manage ED symptoms. Generic versions are widely available, making it one of the most affordable choices. Sildenafil often offers the most budget-friendly option.

Tadalafil

Tadalafil (Cialis) has become one of the most popular ED drugs due to its long-lasting effects. Many men prefer it because it avoids scheduling intimacy with a narrow therapeutic window. Since it remains active for up to a day and a half, men experience greater freedom and flexibility. Even though tadalafil can cost more than other medications, affordability tools make it easier to find competitive pricing.

Vardenafil

Vardenafil functions similarly to sildenafil but causes fewer visual distortions. It appeals to men who want a classic style ED medication with slightly improved tolerability. Although it may cost more in some pharmacies, using a price comparison site can help identify the lowest available prices.

Avanafil

Avanafil stands out for its rapid onset. It can begin working in as little as 15 minutes, which is significantly faster than all the other commercially available PDE 5 inhibitors. Many users like its fast onset, premium duration, and reduced side effect rate compared to its competitors. Avanafil tends to be higher priced, so comparing costs across pharmacies is especially important.

Erectile Dysfunction Side Effects

All prescription medications have potential side effects. While ED medications are generally safe, understanding their common reactions helps you make informed decisions.

Common side effects

  • Headaches
  • Facial flushing
  • Nasal congestion
  • Muscle aches
  • Back pain
  • Digestive discomfort
  • Vision changes, such as heightened brightness or a blue tint
     

Less common but serious side effects

  • Sudden hearing loss
  • Priapism lasting more than four hours
  • Significant drops in blood pressure when combined with nitrates
  • Severe dizziness or fainting

Medical providers can help determine which medication is safest depending on your health history. Since some people try several doses or medications before finding the best fit, price comparison sites can be a useful resource to help reduce the cost of trial periods.

Understanding Which ED Medication Works Best

The best erectile dysfunction medication for you depends on your priorities, health conditions, and how predictable you want the timing to be.

Best for long-lasting results

Tadalafil is the top option for men seeking flexibility throughout the day or weekend.

Best for rapid onset

Avanafil offers the fastest results among the major ED drugs, which is helpful for spontaneous situations.

Best for overall affordability

Generic sildenafil is usually the most cost-effective option.

Best for predictable timing

Sildenafil and vardenafil are excellent for planned intimacy because they have consistent, reliable onset times.

How to Get Erectile Dysfunction Prescriptions

Many men begin the process by speaking with a primary care provider or urologist. Telehealth has also made accessing ED prescriptions much easier.

Options for obtaining a prescription

  • In-person visit with a healthcare provider
  • Online consultation through a telehealth platform
  • Digital pharmacy services
  • Sexual health clinics specializing in ED treatment

During the consultation, you can expect questions about your medical history, cardiovascular health, current medications, and lifestyle habits. Providers may also help you identify affordable options.

Cost and Accessibility of Erectile Dysfunction Prescriptions

Medication costs vary widely by pharmacy, location, and whether you choose a brand name or generic. Many ED drugs are available in generic forms, which significantly reduces cost. Even with generics, price differences between pharmacies can be surprisingly large.

What affects medication cost

  • Whether the medication is brand name or generic
  • The pharmacy you choose
  • Dose strength and quantity
  • Insurance coverage limitations
  • Telehealth consultation fees

Erectile Dysfunction Medications

ED medications continue to provide effective support for men seeking solutions to erectile difficulties. Understanding how each medication works, how they compare, and what side effects to expect can help you choose the option that fits your lifestyle. Cost remains an important factor for many men.

This story was produced by SaveHealth and reviewed and distributed by Stacker.


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