3 DOSAGE FORMS AND STRENGTHS

Although sildenafil works similarly to other PDE5 inhibitors like vardenafil (Levitra), the two have different dosages.

Society and culture

Since brand-name Viagra tablets and generic sildenafil both contain sildenafil, you can expect identical results from a 25mg-100mg dose of Viagra (the typical doses used for erectile dysfunction) as you can the same dose of generic sildenafil. Both Viagra sildenafil citrate tablets 150 mg and sildenafil work best when taken at least 30 minutes to an hour before sexual activity (and no more than four hours beforehand). You can take Viagra or generic sildenafil with or without food, but should avoid taking either with a high-fat meal, as it can make both medications take longer to take effect in your body. If you don’t experience any improvement in your erectile function after using Viagra or generic sildenafil, don’t simply take more of this medication. Instead, let your healthcare provider know — they may recommend adjusting your dosage or trying a different ED medication. Vardenafil, for example, uses a lower dose, although not necessarily stronger than Viagra.

• Sildenafil citrate 100mg tablets are designed for quick absorption.
• The medication is taken orally, usually with water.
• Sildenafil's effects may last for up to 4-6 hours post-administration.
• Do not crush or split the tablets; swallow whole.
• It is important to follow the doctor’s dosage instructions precisely.
• Sildenafil may be less effective if taken with high-fat meals.
• The medication is not a hormone and does not increase libido directly.
• Patients should report any prolonged erections over 4 hours to a doctor.
• Sildenafil can cause dizziness; avoid driving until effects are known.
• Use with caution in patients with liver or kidney disease.
• Sildenafil can interact with other prescription medications, so disclose all drugs.
• The use of sildenafil does not protect against sexually transmitted diseases.

Since brand-name Viagra and generic sildenafil contain sildenafil and come in the same range of dosages, both medications can cause the same range of side effects.

Side Effect	Incidence Rate	Severity	Management Tips
Headache	Common	Mild	Analgesics, hydration
Flushing	Common	Mild	Cooling measures
Nasal Congestion	Frequently	Mild	Saline spray
Dizziness	Sometimes	Mild	Avoid sudden movements
Visual Disturbances	Rare	Mild	Seek medical advice if persists

We’ve divided the side effects into two groups: common and rare. We’ve also included a note about serious drug interaction risks that you should seek to avoid and alert your healthcare provider to before taking sildenafil.

Product	Dosage	Quantity + Bonus	Price
Kamagra Oral Jelly	100mg	63 + 7 Sachets	224.18€ 213.50€	Buy
Viagra Generic	200mg	20 Pills	61.69€ 58.75€	Buy
Viagra Generic	150mg	120 + 8 Pills	177.58€ 169.12€	Buy
Kamagra	100mg	12 Pills	55.64€ 52.99€	Buy
Kamagra Soft Tabs	100mg	20 Pills	79.79€ 75.99€	Buy
Kamagra Soft Tabs	100mg	180 + 8 Pills	425.45€ 405.19€	Buy
Kamagra	100mg	84 + 6 Pills	264.44€ 251.85€	Buy
Kamagra Polo	100mg	180 + 8 Pills	446.52€ 425.26€	Buy
Kamagra Oral Jelly	100mg	10 Sachets	54.55€ 51.95€	Buy
Viagra Generic	200mg	10 Pills	40.96€ 39.01€	Buy
Viagra Generic	50mg	180 + 8 Pills	158.82€ 151.26€	Buy
Kamagra Oral Jelly	100mg	30 + 5 Sachets	136.20€ 129.71€	Buy
Kamagra Soft Tabs	100mg	120 + 6 Pills	311.78€ 296.93€	Buy
Kamagra Oral Jelly	100mg	110 + 9 Sachets	334.87€ 318.92€	Buy
Viagra Generic	150mg	90 + 6 Pills	147.18€ 140.17€	Buy

Common side effects of Viagra and generic sildenafil include: Changes in your perception of color, such as a visible blue tinge or difficulty telling the difference between the colors blue and green Changes in your perception of color, such as a visible blue tinge or difficulty telling the difference between the colors blue and green Most of these side effects resolve on their own as the medication leaves your body. In rare cases, Viagra and generic sildenafil may cause serious side effects, such as: Priapism (a persistent, often painful erection lasting longer than four hours) Priapism (a persistent, often painful erection lasting longer than four hours) Lightheadedness and dizziness (typically brought on by low blood pressure when combined with other medications) Lightheadedness and dizziness (typically brought on by low blood pressure when combined with other medications) If you experience any of these severe side effects, seek medical attention immediately.

4.1 Nitrates

Although some manufacturers may use their own brand name, most generic sildenafil products are labeled simply as “sildenafil.” Regardless, they do the same thing, offer the same benefits, and have the same risk of side effects. While a single tablet of Viagra is priced as high as $70 in the United States, generic drugs like sildenafil tablets are available for as little as $3 each when purchased online. Even though the active ingredients are the same, if you’re switching from Pfizer’s brand-name Viagra to a generic form of sildenafil citrate 120 mg sildenafil, it’s important to check that you’re purchasing tablets with a similar dosage to the one your healthcare provider prescribed. Sildenafil may also be sold under different brand names in other countries. Some of these Viagra generic names include: When it comes to drugs like Figral, Mazzogran, and Fildena vs.

Does Viagra treat ED that’s related to diabetes?

Viagra, they are all used for the same purpose: increasing blood flow to the penis. Their labels also state that these products contain sildenafil, so Mazzogran sildenafil 100mg should be equivalent to brand-name Viagra 100mg. However, because these drugs have not been made in the U.S. and cleared by the FDA, it may be harder to assess the quality of their ingredients. Each country has its own set of regulations, and there’s always the chance the product you’re getting is not authentic if you buy it online from an international retailer.

Sildenafil side effects

If you’re in the U.S. and looking for a cheaper alternative to Viagra, it’s best to stick with FDA-approved sildenafil. Viagra comes in three dosages: 25mg, 50mg, and 100mg. Sildenafil pills similarly come in 25mg, 50mg, and 100mg tablets. However, sildenafil can also come in 20mg when it is sold as the generic version of Revatio. Both Viagra and generic sildenafil can interact with other medications, including alpha-blockers, nitrates, and other medications used to treat hypertension (high blood pressure), heart disease, and other cardiovascular health issues.

8.6 Renal Impairment

Revatio is FDA-approved to treat a type of high blood pressure in the lungs (called pulmonary arterial hypertension, or PAH), but it can be prescribed off-label for ED.So, is sildenafil 20mg the same as Viagra 25mg? While each tablet of generic Revatio is 20mg, when used for ED, you could be prescribed multiple tablets at once, making 40mg, 60mg, 80mg, and 100mg doses possible. Learn more about the difference between Revatio and Viagra on our blog. Sildenafil is also available in the United States as a liquid solution. Your healthcare provider will tell you the specific dosage of brand-name Viagra or generic sildenafil that you should use if you’re prescribed this medication. As such, you’ll want to tell your healthcare provider if you’re taking any prescription or over-the-counter medications, or if you’ve had previous heart issues like angina, chest pain, or a heart attack. Our complete guide to Viagra (sildenafil) side effects discusses the side effects and interactions listed above in more detail.

2.5 Dosage Adjustments in Special Populations

Both generic sildenafil and Viagra work by increasing blood flow to your penis, making it easier for you to get and maintain an erection. Sildenafil belongs to a class of enzyme-inhibiting drugs called phosphodiesterase type 5 inhibitors, or PDE5 inhibitors. Like the others in its class, sildenafil works by relaxing the muscle tissue inside the walls of your blood vessels, allowing the vessels to dilate, and improving blood flow throughout some parts of your body — including your penis. It's important to note that these erectile dysfunction medications aren't wonder drugs. They only work if you're sexually stimulated.

Patient resources

But if you’ve got sexual stimulation and these pills, research shows that you have an effective, reliable erectile dysfunction treatment. If you’re curious about the history of the brand and generic names, here’s the quick version: Two years and many clinical trials later, in March of 1998, the new medication — now called Viagra — received approval from the Food and Drug Administration and hit the market as a prescription medication for the treatment of erectile dysfunction. Two years and many clinical trials later, in March of 1998, the new medication — now called Viagra — received approval from the Food and Drug Administration and hit the market as a prescription medication for the treatment of erectile dysfunction. As the first oral medication for ED, Viagra became incredibly popular. Large-scale TV ad campaigns made the little blue pill famous.

Tell us about your health

In 2005, the FDA approved sildenafil under the brand name Revatio® for treating pulmonary arterial hypertension — more on this later. Pfizer’s patent on Viagra expired in 2012 for countries outside the U.S., allowing other brands to produce and market their own generic Viagra medications containing sildenafil. Although Pfizer challenged the expired patent in the United States, sildenafil has since become widely available as a generic medication manufactured and marketed by various companies. Viagra is brand-name sildenafil that’s FDA-approved for ED, and what is the active ingredient in Viagra? But we suspect the question you really want to ask is whether one is made better, or safer — is generic sildenafil as good as Viagra for treating ED? Minor differences in packaging and pill appearance aside, brand-name Viagra and its generic counterpart, sildenafil, are exactly the same medication. If you have erectile dysfunction, both medications should produce a noticeable boost to your sex life by improving your erections and sexual performance.

• Sildenafil citrate 100mg tablets can be part of erectile dysfunction treatment plans.
• The medication should be taken approximately 30 minutes to 1 hour before sexual activity.
• Sildenafil does not increase sexual desire but facilitates erection during arousal.
• Patients with heart conditions should seek medical advice before use.
• The medication can cause low blood pressure in some users.
• S sildenafil is not intended for recreational use.
• Do not use sildenafil if you are taking medications for high blood pressure without consulting a doctor.
• The effects depend on individual health and other medications taken concurrently.
• Sildenafil is contraindicated in patients taking certain alpha-blockers.
• Regular follow-up with a healthcare provider is recommended during treatment.
• Alcohol consumption may reduce the effectiveness of sildenafil.
• Read all warnings and instructions provided with the medication.

The key difference, as we mentioned above, is price.

Ingredient	Quantity per Tablet	Purpose	Notes
Sildenafil Citrate	100 mg	Active ingredient	Main PDE5 inhibitor
Lactose Monohydrate	50 mg	Binder, filler	Assists disintegration
Magnesium Stearate	5 mg	Lubricant	Ensures tablet flow
Microcrystalline Cellulose	20 mg	Filler mass	Binds ingredients
Hypromellose	10 mg	Coating agent	Protects active ingredient

While Viagra is relatively expensive, you can purchase generic sildenafil tablets at a much more affordable price.

• Sildenafil citrate 100mg tablets are intended for male sexual health issues.
• Never take more than the prescribed dose to prevent adverse effects.
• If an erection lasts longer than 4 hours, seek immediate medical help.
• Consult with a healthcare provider if you experience chest pain after use.
• Sildenafil can affect blood pressure; monitor symptoms closely.
• The medication is not suitable for women or children.
• Use sildenafil only under supervision if you are taking alpha-blockers.
• It may take some time for the medication to work, depending on individual factors.
• Do not combine sildenafil with other ED medications unless advised.
• Discontinue use and consult a healthcare professional if side effects occur.
• Adequate hydration can help reduce some side effects like headaches.
• Follow all instructions carefully to maximize treatment benefits.

In addition to sildenafil and Viagra, Hims offers access to other proven ED medications online including: Tadalafil (Cialis®): Tadalafil (Cialis) can provide relief from erectile dysfunction for up to 36 hours per dose Tadalafil (Cialis®): Tadalafil (Cialis) can provide relief from erectile dysfunction for up to 36 hours per dose Vardenafil (Levitra®): Vardenafil (Levitra): Offers relief from ED for slightly longer than sildenafil Vardenafil (Levitra®): Vardenafil (Levitra): Offers relief from ED for slightly longer than sildenafil Chewable ED meds: Hard Mints come in discreet packaging and are made with similar ingredients to Viagra® and Cialis® at different dosages Chewable ED meds: Hard Mints come in discreet packaging and are made with similar ingredients to Viagra® and Cialis® at different dosages You can learn more about these medications in our complete guide to the best pills for treating erectile dysfunction or access FDA-approved ED medications with Hims online.

Non-medical use

This is a classic example of why people with ED need complete care: a psychological exam, history and physical exam, and diagnostic studies with long term follow-up care. Patients with ED should not just be prescribed sildenafil (Viagra) and then be lost to follow-up. Spontaneous sex for less than $2/day If you’ve searched the web for information about ED medication, you’ve no doubt seen Viagra® mentioned alongside a drug called sildenafil. Given how often they’re interchanged, you might be wondering if there are any differences when it comes to sildenafil vs. Viagra.

Raynaud's phenomenon

Put simply, Viagra is the FDA-approved brand-name version of sildenafil, a prescription medication for ED. Sildenafil is the main active ingredient in Viagra. Like the store-brand salad dressing made with the same ingredients as its brand-name equivalent, sildenafil is just as good as the “little blue pill,” but cheaper. Keep reading to learn more about the similarities and differences between these drugs, and how to choose the best one for you. Sildenafil citrate (often shortened to “sildenafil”) is the main ingredient in Viagra.

What should I know about sildenafil before taking it?

After parent company Pfizer’s patent expired, other manufacturers were allowed to manufacture generic Viagra under the name of its active ingredient, sildenafil. The terms are pretty much interchangeable, the way you might say “Kleenex®” to refer to a tissue. The only real difference between the two medications for ED is how much they cost. Viagra® is a well-known and widely used medication for treating erectile dysfunction (ED), one of the most common sexual dysfunctions in the world. Formulated as that iconic little blue pill, Viagra has the longest history of any FDA-approved buy sildenafil citrate online canada ED treatment on the market today.