Names of Generic Viagra
If you are looking for the names of generic Viagra, the most important answer is simple: the generic name for Viagra is sildenafil. Viagra is the original brand name, while sildenafil is the active drug used to treat erectile dysfunction (ED). In the United States, multiple manufacturers sell FDA-approved generic sildenafil tablets.
What Is the Name for Generic Viagra?
The generic name for Viagra is sildenafil. More specifically, Viagra tablets contain sildenafil citrate, which provides the active drug sildenafil. FDA-approved generic versions are therefore generally identified as sildenafil tablets rather than by a single alternative brand name.
There are multiple manufacturers of generic sildenafil, but there are not multiple official generic drug names for Viagra. Sildenafil is the generic drug name.
What Is the Generic Name of Viagra?
The generic name of Viagra is sildenafil.
Viagra is a brand name originally developed and marketed for sildenafil used in the treatment of erectile dysfunction.
This distinction is important because drug names can refer to several different things:
Viagra vs sildenafil: the naming difference
Viagra = brand name.
Sildenafil = generic drug name / active medication.
Sildenafil citrate = the citrate salt form used in the tablets.
Generic sildenafil = sildenafil medicine produced by manufacturers other than the original brand manufacturer after meeting applicable regulatory requirements.
Therefore, if a prescription, pharmacy listing or medical article refers to sildenafil for ED, it is referring to the same active medication found in Viagra.
Are There Different Names of Generic Viagra?
This question creates some confusion because people often use the word name to mean either a generic drug name, manufacturer name or commercial brand.
From a drug-naming perspective, there is one key generic name:
Sildenafil.
However, multiple pharmaceutical companies can manufacture generic sildenafil. Their tablets may therefore appear under different manufacturer labels or product listings.
One generic drug, multiple manufacturers
Different FDA-approved generic sildenafil products can have different manufacturers, colors, shapes, markings, packaging and inactive ingredients while still containing sildenafil as the active ED medication.
So when someone asks for the names of generic Viagra, the medically precise answer is not a long list of alternative drug names. The generic drug is sildenafil, while multiple manufacturers may produce sildenafil tablets.
Is Sildenafil the Same as Generic Viagra?
In the context of erectile dysfunction, yes — sildenafil is the medication commonly meant by “generic Viagra.”
Both brand-name Viagra and FDA-approved generic sildenafil provide the same active drug.
| Name | What It Means | Active Drug |
|---|---|---|
| Viagra | Original brand-name ED medication | Sildenafil |
| Sildenafil | Generic drug name | Sildenafil |
| Sildenafil citrate | Salt form used in the medication | Provides sildenafil |
| Generic Viagra | Informal term commonly used for generic sildenafil for ED | Sildenafil |
The important difference is therefore usually branding and manufacturer rather than the therapeutic active ingredient.
For a detailed comparison, see: Viagra and Generic Sildenafil: What Is the Difference? →
Sildenafil or Sildenafil Citrate: Which Is the Generic Name?
Both terms appear frequently, but they describe slightly different aspects of the medication.
Sildenafil is the generic name of the active drug.
Sildenafil citrate refers to the citrate salt in which sildenafil is formulated in Viagra and many generic tablets.
Drug labels may therefore use wording such as “sildenafil tablets” while ingredient information refers more specifically to sildenafil citrate.
Simple example
A tablet labeled sildenafil 50 mg contains enough sildenafil citrate to provide the equivalent of 50 mg of sildenafil.
Patients do not need to calculate the weight of sildenafil citrate themselves. The labeled strength refers to the amount of active sildenafil delivered.
What Are the FDA-Approved Generic Viagra Names?
In the United States, FDA-approved generic versions are generally marketed under the generic drug name sildenafil together with information identifying the manufacturer.
This is different from expecting every generic to have its own famous consumer brand name.
A pharmacy label may therefore identify the medicine simply as:
- Sildenafil 25 mg;
- Sildenafil 50 mg;
- Sildenafil 100 mg.
Manufacturer information may also appear on the prescription label or packaging.
The exact manufacturer supplied by a pharmacy can change depending on inventory, wholesaler availability and pharmacy purchasing arrangements.
What Companies Make Generic Sildenafil?
Multiple pharmaceutical manufacturers have marketed FDA-approved sildenafil products in the United States.
Because manufacturers and approved products can change over time, the most useful way to verify a specific product is to check its current FDA listing rather than relying on an old list of brand or company names.
This is particularly relevant when a patient receives a refill and notices that the tablet suddenly has a different color, shape or imprint.
A different-looking tablet can still be sildenafil
Pharmacies may dispense generic sildenafil from different approved manufacturers. Changes in tablet appearance do not necessarily mean the active medication or prescribed strength has changed.
What Strengths Does Generic Viagra Come In?
Sildenafil used for erectile dysfunction is commonly available in:
- 25 mg;
- 50 mg;
- 100 mg.
For many adults with ED, 50 mg is the usual starting dose. Depending on response and tolerability, it may be reduced to 25 mg or increased to 100 mg.
| Sildenafil Strength | Typical Role |
|---|---|
| 25 mg | Lower sildenafil exposure when appropriate |
| 50 mg | Usual starting dose for many adults |
| 100 mg | Maximum recommended ED dose when a lower dose is insufficient and well tolerated |
Our dosage guides explain these differences in more detail:
Compare Generic Sildenafil Options
Generic sildenafil contains the same active ED medication as Viagra and is commonly available in 25 mg, 50 mg and 100 mg strengths.
Sildenafil 25 mg
Lower-dose sildenafil for situations where reduced drug exposure is appropriate.
View Sildenafil 25 mgSildenafil 50 mg
The commonly recommended starting strength for many adults treated for erectile dysfunction.
View Sildenafil 50 mgSildenafil 100 mg
Higher sildenafil strength generally considered when a lower dose is insufficient and treatment is well tolerated.
View Sildenafil 100 mgPrescription requirements, availability and shipping eligibility vary by location. Sildenafil strength should be selected according to medical suitability, response and tolerability.
Are Kamagra, Cenforce and Other Sildenafil Brands Generic Viagra?
This is where the phrase “generic Viagra” needs to be used carefully.
Products such as Kamagra and Cenforce are marketed in some countries as sildenafil-containing erectile dysfunction medications.
Because they contain or are marketed as containing sildenafil, people sometimes casually call them “generic Viagra.”
However, that description can be misleading in the United States.
Same claimed active ingredient does not mean same regulatory status
A foreign sildenafil brand should not automatically be described as an FDA-approved generic Viagra product. FDA approval applies to specific drug products and manufacturers, not simply to every product that claims to contain sildenafil.
Therefore, it is useful to distinguish between:
- FDA-approved generic sildenafil;
- foreign-market sildenafil brands;
- unverified products sold online.
These categories should not be treated as interchangeable.
Is Revatio Another Name for Generic Viagra?
No — although this is an understandable source of confusion.
Revatio also contains sildenafil, but it is associated with a different medical indication and dosing framework than Viagra.
Viagra is used for erectile dysfunction, while sildenafil under the Revatio indication is used for pulmonary arterial hypertension.
Same active drug does not always mean interchangeable treatment
Viagra and Revatio both involve sildenafil, but their approved indications, strengths and dosing instructions differ. Patients should not substitute one treatment regimen for another without appropriate medical guidance.
Is Cialis a Generic Name for Viagra?
No.
Cialis and Viagra belong to the same broad medication class — PDE5 inhibitors — but they contain different active drugs.
| Brand | Generic Drug | Drug Class |
|---|---|---|
| Viagra | Sildenafil | PDE5 inhibitor |
| Cialis | Tadalafil | PDE5 inhibitor |
| Levitra | Vardenafil | PDE5 inhibitor |
| Stendra | Avanafil | PDE5 inhibitor |
Tadalafil is therefore not another generic name for Viagra. It is a different medication with a substantially longer duration profile.
See our guides to tadalafil 5 milligrams and tadalafil 20 milligrams.
Does Generic Viagra Work the Same as Brand-Name Viagra?
FDA-approved generic sildenafil is intended to provide the same clinical benefit as the reference medicine when used at an equivalent dose.
The active medication is sildenafil in both cases.
Generic tablets can nevertheless differ in:
- manufacturer;
- color;
- shape;
- tablet markings;
- packaging;
- inactive ingredients.
These differences explain why two sildenafil tablets can look different even though their labeled active drug and strength are the same.
Does Generic Viagra Work as Fast as Viagra?
FDA-approved generic sildenafil has the same general onset profile as brand-name Viagra.
Sildenafil typically begins providing erectile support within approximately 30–60 minutes, although individual response varies.
A high-fat meal can delay absorption and make the medication take longer to work.
For more detail, see: How Long Does Viagra Take to Work? →
How Long Does Generic Viagra Last?
Because the active medication is sildenafil, FDA-approved generic sildenafil has the same general duration profile as brand-name Viagra.
Sildenafil usually provides useful erectile support for several hours, with the effect gradually decreasing over time.
It does not normally cause a continuous erection throughout that period.
Read our complete duration guide: How Long Should Viagra Last? →
How Can You Identify a Generic Sildenafil Tablet?
Tablet appearance alone is not a reliable way to identify sildenafil.
Generic products from different manufacturers may have different colors, shapes and imprints.
A medication should instead be identified using its:
- pharmacy label;
- manufacturer;
- tablet imprint;
- labeled strength;
- official drug information.
Do not identify an unknown ED pill by color alone
Viagra is widely associated with a blue tablet, but not every blue ED pill is Viagra and generic sildenafil does not have to look like branded Viagra.
Why Are There So Many “Generic Viagra” Names Online?
Online search results often mix several different categories together.
You may encounter:
- the generic drug name sildenafil;
- FDA-approved generic manufacturers;
- international sildenafil brands;
- pharmacy private-label descriptions;
- unverified online products;
- other PDE5 inhibitors incorrectly grouped under “generic Viagra.”
This creates the impression that Viagra has dozens of different generic drug names.
It does not.
The answer remains simple
Viagra is the brand. Sildenafil is the generic drug.
Looking for Generic Sildenafil?
Generic sildenafil provides the same active ED medication as Viagra and is commonly available in 25 mg, 50 mg and 100 mg strengths.
Compare Sildenafil OptionsAvailability, prescription requirements and shipping eligibility depend on location. Verify the product and pharmacy rather than assuming every medicine advertised as “generic Viagra” has the same regulatory status.
Names of Generic Viagra: Frequently Asked Questions
What is the name for generic Viagra?
Sildenafil is the generic name for Viagra. Viagra is the original brand name for sildenafil used to treat erectile dysfunction.
What is another name for Viagra?
Sildenafil is the generic drug name associated with Viagra. However, other ED drugs such as tadalafil and vardenafil are different medications, not alternative names for Viagra.
Is sildenafil citrate generic Viagra?
Sildenafil citrate is the salt form used to provide sildenafil in Viagra and generic sildenafil tablets. Sildenafil is the generic name of the active drug.
Are there multiple generic names for Viagra?
No. The generic drug name is sildenafil. There are multiple manufacturers and international brand names, which can make it appear that Viagra has several generic names.
Is generic Viagra called sildenafil?
Yes. In the context of erectile dysfunction, generic Viagra generally refers to sildenafil.
Is generic sildenafil the same strength as Viagra?
Equivalent labeled strengths contain the same amount of active sildenafil. For example, Viagra 50 mg and FDA-approved generic sildenafil 50 mg both provide a labeled 50 mg dose of sildenafil.
Is Kamagra a generic name for Viagra?
No. Kamagra is a commercial sildenafil brand marketed in some countries; it is not the generic drug name. The generic drug name is sildenafil, and foreign brands should not automatically be described as FDA-approved U.S. generics.
Is Cenforce a generic name for Viagra?
No. Cenforce is a commercial sildenafil brand available in some markets. Sildenafil is the actual generic drug name.
Is tadalafil another name for generic Viagra?
No. Tadalafil is a different PDE5 inhibitor and is the generic drug associated with Cialis.
What doses does generic Viagra come in?
Sildenafil for ED is commonly available in 25 mg, 50 mg and 100 mg strengths.
Bottom Line: What Are the Names of Generic Viagra?
The generic name for Viagra is sildenafil.
Viagra is the brand name, sildenafil is the generic active drug name, and sildenafil citrate describes the salt form used in the medication.
Although multiple companies manufacture sildenafil and numerous international sildenafil brands exist, this does not mean Viagra has many different generic drug names.
In the United States, FDA-approved generic products are generally identified as sildenafil together with their strength and manufacturer.
The simplest way to remember the distinction is: Viagra = brand; sildenafil = generic drug.