A Guide to the Most Common Erectile Dysfunction Medications

That gives drug companies and reps less incentive to hand out free ED pills. You can get Viagra for a fraction of the fildena 100mg price it used to be. And you have plenty of other erectile dysfunction (ED) medication options, too. Below, we’ll go deeper into the history of Viagra samples, what the difference is between generic Viagra and the brand-name drug, and the basics of ED treatment. Erectile dysfunction (ED) is the consistent inability to achieve or maintain an erection sufficient for satisfactory sexual performance.

What is the "little blue pill?"

It’s important to speak with your doctor before taking Viagra. PDE5 is an enzyme that affects blood flow. Below are some potential effects of taking Viagra. Viagra dilates blood vessels and increases the flow of blood to the penis. Viagra may also cause increased blood flow to the genitals of people without a penis, which may help increase sensitivity, arousal, and orgasmic function.

What should I know about sildenafil before taking it?

It helps to understand that sexual dysfunction is a complex issue. In a 2024 study, a topical cream with 3.6% sildenafil improved outcomes in people with female sexual arousal disorder (FSAD), particularly people without orgasm dysfunction. Another 2024 study found that age and hormonal contraceptives didn’t affect the effectiveness of topical sildenafil creams on FSAD. However, additional use of psychiatric medication decreased sexual desire in people using the cream and participants who used a placebo. More research is necessary to fully understand any potential benefit from the Viagra form of sildenafil for female sexual dysfunction. It’s a common problem that affects many men, especially in older age. One of the most well-known treatments for ED is the active ingredient sildenafil citrate (AKA brand-name Viagra®). It’s part of a group of medications called phosphodiesterase type 5 (PDE5) inhibitors. These medications work by allowing the blood vessels in your penis to relax so you can more easily achieve an erection.

• Erectile dysfunction can sometimes signal underlying health issues.
• Blue sex pills are not a cure but a management tool.
• Lifestyle factors like smoking and obesity impact erectile health.
• Some blue pills are designed as combination therapies.
• They may be taken as part of a broader treatment plan, including counseling.
• Patients should discuss all medications with their doctor.
• Blue pills can affect blood pressure, so monitoring is advised.
• Proper use increases the chance of optimal results and safety.

Although the FDA has approved many PDE5 inhibitor medications, Viagra is probably the most famous. Before the 1970s, most doctors assumed the primary cause of ED was psychological, and treated it by recommending therapy.

• Blue sex pills can boost confidence during intimacy.
• They are not aphrodisiacs but treat erectile issues.
• Non-prescription blue pills may contain untested ingredients.
• Pregnant or nursing women should avoid using ED medications.
• Age, health conditions, and medication history influence suitability.
• Blue pills require sexual stimulation to be effective.
• Expired or poorly stored pills can lose potency.
• Always check for proper labeling and seals before purchase.

In 1973, medical experts started using the penile implant to treat men with ED that didn’t seem to resolve with psychological interventions. But while health professionals were starting to look at ED a bit differently, it took years before the first ED medication came onto the market — and it happened entirely by accident.

Product Name	Typical Dose	Time to Effect	Maximum Daily Dose	Special Instructions
BlueVibe	50 mg	30-60 min	100 mg	Take on an empty stomach, avoid alcohol
AquaMax	10 mg	30 min	20 mg	Do not exceed once per day
Oceanic Power	100 mg	15-30 min	100 mg	Take with water, do not combine with other ED meds
BlueRush	50 mg + L-arginine	30 min	100 mg	Natural ingredients may cause interaction

In the early 1990s, Pfizer was working on a drug called sildenafil to treat high blood pressure and angina (AKA chest pain). They ran clinical trials in a small Welsh town called Merthyr Tydfil, recruiting young men who were happy to earn extra money by testing the medication and reporting side effects. Many participants reported more frequent, harder erections. At a time when effective treatments for ED didn’t exist, Pfizer realized they might have stumbled upon something revolutionary. They quickly shifted their focus to developing a drug for ED. By 1998, the medication hit the market in the United States and United Kingdom, becoming the fastest-selling drug in history.

Product	Dosage	Quantity + Bonus	Price
Levitra Generic	40mg	180 + 10 Pills	405.06€ 385.77€	Buy
Viagra Generic	150mg	90 + 6 Pills	147.18€ 140.17€	Buy
Viagra Professional	100mg	120 + 4 Pills	262.83€ 250.31€	Buy
Super Kamagra	160 mg	92 + 6 Pills	478.75€ 455.95€	Buy
Levitra Generic	10mg	270 + 10 Pills	338.09€ 321.99€	Buy
Tadalista Super Active	20mg	90 + 10 Pills	314.14€ 299.18€	Buy
Cialis Generic	40mg	10 Pills	37.79€ 35.99€	Buy
Cialis Professional	20mg	20 Pills	78.33€ 74.60€	Buy
Viagra Oral Jelly	100mg	220 + 18 Sachets	562.28€ 535.50€	Buy
Super Kamagra	160 mg	152 + 8 Pills	729.11€ 694.39€	Buy
Cialis Generic	20mg	10 Pills	31.49€ 29.99€	Buy
Viagra Generic	50mg	120 + 6 Pills	129.64€ 123.47€	Buy
Viagra Generic	150mg	180 + 10 Pills	236.46€ 225.20€	Buy
Cialis Original	20mg	4 Pills	41.99€ 39.99€	Buy
Cialis Soft Tabs	20mg	30 + 4 Pills	87.43€ 83.27€	Buy

Back in the day, free Viagra samples were a big part of the drug’s marketing campaign. Free samples let men try out the medication before committing to a full — and expensive — prescription. Today, the practice of giving out free samples of Viagra isn’t common.

Myth #2: Viagra starts working instantly

If you do plan on taking Viagra, consider the source. Some online sites that claim to sell Viagra are selling counterfeit drugs. These may not work like Viagra and may not be safe. To access the real thing, you’ll need a prescription. A doctor will decide on the dose and provide safety information.

When to take

Viagra is an ED medication that improves blood flow to the penis. Viagra is a brand name, and there’s no “Viagra for women.” There are, however, a few FDA-approved medications to treat low female sexual desire. Because it’s a pink tablet and Viagra is a blue tablet, the nickname “female Viagra” was bound to happen. But these are different drugs with different missions. Addyi is a brand name for a nonhormonal medication called flibanserin. But in 2017 the patent on Viagra expired, opening the door for other companies to manufacture and sell generic sildenafil — and lowering the price for the well-known little blue pill. Most new drugs in the United States hit the market with a patent period of 20 years from when the patent application was filed. Once a patent and any other exclusivity periods expire, competing pharmaceutical companies can produce generic forms of brand-name medications.

Buying oral erectile dysfunction medications online

One thing that can suppress libido is the use of certain antidepressants, including: A 2025 review looks at the effects of various medications to treat antidepressant-induced female sexual dysfunction. It suggests that sildenafil may improve orgasm results and most Female Sexual Function Index scores. However, it had limited effects on pain during sexual activity. It was also not the most effective medication included in the review. Viagra may cause blood pressure to drop.

How can I tell if Viagra’s not working?

That can be a problem if you already have low blood pressure or take medications that lower blood pressure. Most information about Viagra’s safety looks at male use, not female use, particularly in the long term. More research is necessary to see if the same side effects may occur. The product label doesn’t include dosing information for FSAD because it’s not the intended use. In studies, doses for female use may vary significantly. Generic drugs are just as effective, safe, and reliable as brand-name drugs. They also have similar ingredients and side effects, but typically cost much less. So while free Viagra samples are mostly a thing of the past, affordable alternatives are widely available. Hims offers access to generic sildenafil at an affordable price with the same proven results as Viagra.

Ingredient	Source	Purpose	Common Uses
Sildenafil	Synthetic pharmaceutical	Enhances blood flow during arousal	Erectile dysfunction
Tadalafil	Synthetic pharmaceutical	Longer-lasting erection	Erectile dysfunction
Avanafil	Synthetic pharmaceutical	Rapid onset effect	Erectile dysfunction
L-arginine	Amino acid	Boosts nitric oxide production	Viagra alternatives
Yohimbine	Natural extract	Improves blood circulation	Libido enhancement

PDE5 inhibitor drugs like Viagra work by increasing blood flow to the penis. Sildenafil does this by inhibiting the enzyme PDE5 and increasing the action of a molecule called nitric oxide.

Non-medical use

There’s no “female Viagra,” but there are a couple of drugs with approval to treat sexual dysfunction associated with specific conditions. There are many reasons for low sex drive. Before taking Viagra or any other medication, talk with your doctor about the potential benefits, risks, and side effects of these medications for you. Be ready for sex whenever you're in the mood Why don’t doctors necessarily hand out free Viagra samples anymore? Viagra is now available as a generic, making it more affordable than ever. Nitric oxide is a vasodilator, meaning that it helps your blood vessels relax.

• Some blue pills are formulated for extended release.
• They often come with detailed dosing instructions.
• Fake blue pills often lack proper coating or markings.
• It’s critical to distinguish authentic medications from fakes.
• Over-the-counter supplements claiming to mimic blue pills are unregulated.
• Natural alternatives like L-arginine may support erectile health.
• Mental health issues like anxiety can reduce medication effectiveness.
• Awareness campaigns help educate about safe use of blue pills.

This allows more blood to fill your penis, making it easier to achieve an erection. Viagra doesn’t instantly trigger erections, though. It makes it easier to get hard once you’re sexually aroused. You can take Viagra 30 minutes to 4 hours before sexual activity. But taking it about 1 hour before is ideal. Free drug samples were once a popular marketing strategy for brand-name medications. But with the rise of generic drugs, they’ve become less common. Here’s why: When a drug’s exclusivity and patent expires, generic versions often flood the market, driving prices down. With tighter profit margins, companies are less motivated to give away free samples. There’s also been some pushback against the practice. Critics argue that samples can lead to doctors prescribing pricier, less effective drugs. And the act of giving out free drug samples bypasses pharmacists, who play a key role in ensuring safe medication use and checking for potential drug interactions. You need a prescription to buy Viagra in the United States and most other countries. Some people attempt to bypass this by importing sildenafil from abroad, which is illegal — and risky. Counterfeit Viagra is a big problem, especially online.

Quiz: Is it erectile dysfunction?

You inject it under the skin on your abdomen or thigh about 45 minutes before you plan to have sex. Both medications are approved to treat acquired, generalized sexual desire disorder in premenopausal women. Specifically, it’s for low sexual desire that causes distress, but is unrelated to: Addyi and Vyleesi treat sexual desire, though the exact mechanism of action isn’t clear. They seem to affect certain pathways in the brain that influence sexual desire. Side effects of Addyi include low blood pressure, fainting, and nausea.

Sildenafil: what you need to know

These effects may be more intense if you take birth control pills or drink alcohol. Side effects of Vyleesi include a temporary increase in blood pressure and a decrease in heart rate. It can also cause nausea and isolated spots of skin lightening (focal hyperpigmentation). Viagra is FDA approved to treat erectile dysfunction. It doesn’t have approval for treating female sexual dysfunction, and studies thus far have had mixed results. Some websites sell fake or low-quality products that might be ineffective — or even harmful. A 2018 study found counterfeit Viagra samples advertised on websites in Singapore and India. Be cautious of any site offering free samples without a prescription. If it sounds too good to be true, it probably is. If you’re considering Viagra, here are a few tips to keep in mind: Many telehealth companies like Hims make it easy to consult a provider online and skip the in-person visit for a prescription. Many telehealth companies like Hims make it easy to consult a provider online and skip the in-person visit for a prescription. Let your provider know about any medical issues, lifestyle habits, and symptoms so they can recommend the best ED treatment for your needs.

Country	Legal Status	Regulation Details	Notes
USA	Prescription required	FDA approval necessary for sale	Available via doctors
UK	Rx only	Classified as medication, requires prescription	Over-the-counter in some areas
Canada	Prescription only	Controlled substance laws apply	Found in pharmacies
Australia	Schedule 4 (Prescription)	Regulated, approved for medical use	Online sales restricted

Make sure to take the correct dose and let your provider know if you experience any side effects. Finding free ED medications isn’t easy, but telehealth has made it easier than ever to access ED treatments. Many providers now offer affordable options, and some even offer trial periods. Hims provides access to ED medications at affordable prices.