Sildenafil 20mg Tablets

Other uses for this medicine
7. Drug Interactions
13. Nonclinical Toxicology
What special precautions should I follow?
2.1 Recommended Dosage in Adults

Do not take Sildenafil tablets if you take any other medicines called “nitrates.” Nitrates are used to treat chest pain (angina). Do not take Sildenafil tablets if you take medicines called guanylate cyclase stimulators such as riociguat. Please click here for more Important Risk Information. Tell all your healthcare providers that you take Sildenafil tablets. If you need emergency medical care for a heart problem, it will be important for your healthcare provider to know when you last took Sildenafil tablets.

Other uses for this medicine

Sildenafil tablets does not protect you or your partner from getting sexually transmitted diseases, including HIV—the virus that causes AIDS.

Product	Dosage	Quantity + Bonus	Price
Viagra Generic	150mg	270 + 10 Pills	326.61€ 311.06€
Viagra Generic	50mg	270 + 8 Pills	198.48€ 189.03€
Kamagra Oral Jelly	100mg	10 Sachets	54.55€ 51.95€
Kamagra Soft Tabs	100mg	84 + 4 Pills	233.05€ 221.95€
Kamagra	100mg	32 Pills	121.24€ 115.47€
Viagra Generic	100mg	360 + 10 Pills	330.21€ 314.49€
Viagra Generic	25mg	10 Pills	25.19€ 23.99€
Kamagra	100mg	120 + 6 Pills	330.74€ 314.99€
Viagra Generic	25mg	30 + 4 Pills	47.97€ 45.69€
Kamagra Oral Jelly	100mg	220 + 18 Sachets	662.24€ 630.70€
Viagra Generic	100mg	90 + 6 Pills	129.02€ 122.88€
Viagra Generic	150mg	30 + 2 Pills	72.32€ 68.88€
Kamagra Soft Tabs	100mg	12 Pills	57.55€ 54.81€
Viagra Generic	25mg	20 Pills	37.74€ 35.94€
Viagra Generic	25mg	60 + 4 Pills	71.99€ 68.56€
Viagra Generic	200mg	10 Pills	40.96€ 39.01€

Please click here for more Important Risk Information Do not take Sildenafil tablets more than one time each day.

7. Drug Interactions

Some medications, like nitroglycerin (nitrates), isosorbide dinitrate, riociguat, ritonavir, itraconazole, ketoconazole, alpha blockers and “poppers”, have well-documented drug interactions with sildenafil and could cause serious side effects. If you are currently taking a PDE5 inhibitor, like Revatio for pulmonary arterial hypertension, talk to your doctor about adjusting your dosage. There are also some rare, serious side effects of sildenafil, namely an allergic reaction, loss of vision/hearing, or priapism, an erection lasting for more than four hours. Seek emergency medical attention if you experience any of these serious side effects. Learn more about the common warnings and precautions to consider before taking generic Viagra®.

12.3 Pharmacokinetics

You can get the generic for Viagra® through an online or local pharmacy with a prescription from a licensed medical provider. Generic for Viagra® is not available over-the-counter. To get genuine generic for Viagra®, ensure that you are seeing a healthcare provider licensed in your state and have your prescription filled by a qualified pharmacy, one that is licensed in your state and has 3rd-party accreditations like LegitScript. Package insert / product label Generic name: sildenafil citrate Dosage form: tablet, film coated Drug classes: Agents for pulmonary hypertension, Impotence medications Warnings and Precautions, Effects on the Eye (5.3) 08/2017 Sildenafil tablet is a phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) (1) •For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. However, sildenafil tablets may be taken anywhere from 30 minutes to 4 hours before sexual activity (2.1) •Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg (2.1) •Maximum recommended dosing frequency is once per day (2.1) Tablets: 25 mg, 50 mg, 100 mg (3) •Administration of sildenafil tablets to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form.

When and How to Take Sildenafil for Best Results

Sildenafil tablets were shown to potentiate the hypotensive effect of nitrates ( 4.1, 7.1, 12.2) •Known hypersensitivity to sildenafil or any component of tablet (4.2) •Administration with guanylate cyclase (GC) stimulators, such as riociguat (4.3) •Patients should not use sildenafil tablets if sexual activity is inadvisable due to cardiovascular status (5.1) •Patients should seek emergency treatment if an erection lasts >4 hours. Use sildenafil tablets with caution in patients predisposed to priapism (5.2) •Patients should stop sildenafil tablets and seek medical care if a sudden loss of vision occurs in one or both eyes, which could be a sign of non arteritic anterior ischemic optic neuropathy (NAION). Sildenafil tablets should be used with caution, and only when the anticipated benefits outweigh the risks, in patients with a history blue sildenafil of NAION. Patients with a”crowded” optic disc may also be at an increased risk of NAION. (5.3) •Patients should stop sildenafil tablets and seek prompt medical attention in the event of sudden decrease or loss of hearing (5.4) •Caution is advised when sildenafil tablets are co-administered with alpha-blockers or anti-hypertensives. If you are concerned that you are having side effects related to the medication, please consult your doctor. Please click here for full Prescribing Information and Patient Information.

20mg sildenafil is a low dose used for erectile dysfunction.
It typically begins working within 30-60 minutes.
Sildenafil should be taken on an empty stomach for best results.
Common side effects include headache, flushing, and dizziness.
Consult a doctor before using 20mg sildenafil to ensure safety.

Generic for Viagra ® contains Sildenafil, a doctor-trusted ingredient that is effective for treating ED, which means that it is just as effective for the treatment of erectile dysfunction as the original ED medication. Generic Viagra® is a PDE5 (phosphodiesterase type 5) inhibitor, which works by blocking the PDE5 enzyme, which in turn temporarily relaxes smooth muscle and improves blood flow to the penis during sexual stimulation. While Viagra® is easily recognizable as the “little blue pill,” the generic for Viagra® comes in many different colors and shapes. Authentic pills may be white or blue, round or diamond, etc. The cost of a generic for Viagra® tablet varies based on the strength of the sildenafil tablet manforce 50 mg dose of sildenafil it contains, but generally costs anywhere from about $4 to $10 per dose, compared to $50 to $70 per dose for brand-name Viagra®. Through Hims, generic for Viagra® costs 95% less than branded Viagra®. Generic for Viagra ® contains Sildenafil, a doctor-trusted ingredient that is effective for treating ED.

Myths and misconceptions about sildenafil are common and should be addressed.
It is not a "party drug" or aphrodisiac; it requires sexual stimulation to work.
It does not cause spontaneous erections without sexual arousal.
More is not always better; higher doses increase side effect risk, not pleasure.
It is not addictive, but psychological dependence on its use can develop.
It does not permanently cure erectile dysfunction; effects are temporary.
It is not safe to use just because it is widely available or discussed.
Herbal "natural Viagra" products are not regulated and can be dangerous.
It does not protect against sexually transmitted infections or prevent pregnancy.
It is not approved or proven to enhance sexual performance in men without ED.
Accurate information from a healthcare provider is essential.

Read more about the cost of generic Viagra® and brand-name Viagra® on our blog. The Generic for Viagra ® is called Sildenafil Citrate. This means that the generic form of Viagra ® will have the same therapeutic effect, but at a lower cost Yes, generic forms of Viagra® are just as safe as Viagra®.

13. Nonclinical Toxicology

Generic for Viagra ® contains Sildenafil, a doctor-trusted ingredient that is effective for treating ED. Read more about the cost of generic Viagra® and brand-name Viagra® on our blog. The Generic for Viagra ® is called Sildenafil Citrate. This means that the generic form of Viagra ® will have the same therapeutic effect, but at a lower cost Yes, generic forms of Viagra® are just as safe as Viagra®. Both Viagra® and generic for Viagra® were approved by the Food and Drug Administration (FDA) to treat ED and millions of men have used Viagra® or the generic for Viagra® to treat their erectile dysfunction.

Revatio for Oral Suspension

Generic medications do not compromise the safety of a medication. The cost is lower than brand name medication for many reasons, most notably because the brand name medication is no longer legally protected against competition from other manufacturers. Generic for Viagra® may not be safe for men with some pre-existing conditions or who are taking medications that may interact with the drug. If you have (or have ever had) heart problems (such as a heart attack), heart disease, irregular heartbeat, angina, chest pain, narrowing of the aortic valve, heart failure, heart surgery, pulmonary hypertension including pulmonary arterial hypertension, stroke, low blood pressure, high blood pressure, a deformed penis shape (Peyronie’s Disease), priapism (an erection that lasts for more than 4 hours), sickle cell anemia, multiple myeloma, leukemia, retinitis pigmentosa (a rare genetic eye disease), severe vision loss (such as NAION), bleeding problems, stomach ulcers, liver problems or kidney problems (such as kidney dialysis), you may be at higher risk for adverse effects. If you have any of these health conditions, or any other health condition, tell your healthcare provider.

Comparing Sildenafil vs. Tadalafil Dosage

Your provider should be aware of all medical conditions, prescription drugs and over-the-counter meds that you are taking. Multiple companies make generic for Viagra®, including Teva Pharmaceuticals and Greenstone, a subsidiary of Pfizer Inc. Take sildenafil (generic for Viagra®) chew sildenafil about one hour before sexual activity, as it takes about 30 minutes to an hour to begin working. Check out our guide on how to take Viagra® for best results. If you are currently taking any over-the-counter, recreational or prescription drugs or supplements, tell your healthcare provider. Both Viagra® and generic for Viagra® were approved by the Food and Drug Administration (FDA) to treat ED and millions of men have used Viagra® or the generic for Viagra® to treat their erectile dysfunction. Generic medications do not compromise the safety of a medication. The cost is lower than brand name medication for many reasons, most notably because the brand name medication is no longer legally protected against competition from other manufacturers.

In case of overdose, standard supportive measures should be employed.
Symptoms of overdose are expected to be an extension of common side effects.
Severe hypotension could occur and may require active cardiovascular support.
Hemodialysis is not expected to accelerate clearance of sildenafil.
The primary metabolite, N-desmethyl sildenafil, is also not significantly dialyzable.
Management of priapism may require corporal irrigation or surgical intervention.
There is no specific antidote for sildenafil overdose.
If an overdose is suspected, contact a poison control center immediately.
Provide the medical professional with the amount ingested and the time.
Keep the patient hydrated and monitor vital signs closely.
Ingestions in children require immediate emergency medical attention.

Generic for Viagra® may not be safe for men with some pre-existing conditions or who are taking medications that may interact with the drug. If you have (or have ever had) heart problems (such as a heart attack), heart disease, irregular heartbeat, angina, chest pain, narrowing of the aortic valve, heart failure, heart surgery, pulmonary hypertension including pulmonary arterial hypertension, stroke, low blood pressure, high blood pressure, a deformed penis shape (Peyronie’s Disease), priapism (an erection that lasts for more than 4 hours), sickle cell anemia, multiple myeloma, leukemia, retinitis pigmentosa (a rare genetic eye disease), severe vision loss (such as NAION), bleeding problems, stomach ulcers, liver problems or kidney problems (such as kidney dialysis), you may be at higher risk for adverse effects. If you have any of these health conditions, or any other health condition, tell your healthcare provider. Your provider should be aware of all medical conditions, prescription drugs and over-the-counter meds that you are taking. Multiple companies make generic for Viagra®, including Teva Pharmaceuticals and Greenstone, a subsidiary of Pfizer Inc.

Side Effect	Frequency	Severity	Notes
Headache	Common	Mild	Usually subsides after a few hours
Flushing	Common	Mild	Feeling of warmth or redness
Nasal Congestion	Less Common	Mild	Stuffiness in nose
Dizziness	Less Common	Moderate	Caution when standing up quickly
Vision Changes	Rare	Mild to Moderate	Blurred or blue-tinted vision

Take sildenafil (generic for Viagra®) chew sildenafil about one hour before sexual activity, as it takes about 30 minutes to an hour to begin working. Check out our guide on how to take Viagra® for best results. If you are currently taking any over-the-counter, recreational or prescription drugs or supplements, tell your healthcare provider. Some medications, like nitroglycerin (nitrates), isosorbide dinitrate, riociguat, ritonavir, itraconazole, ketoconazole, alpha blockers and “poppers”, have well-documented drug interactions with sildenafil and could cause serious side effects. If you are currently taking a PDE5 inhibitor, like Revatio for pulmonary arterial hypertension, talk to your doctor about adjusting your dosage. There are also some rare, serious side effects of sildenafil, namely an allergic reaction, loss of vision/hearing, or priapism, an erection lasting for more than four hours. Seek emergency medical attention if you experience any of these serious side effects. Learn more about the common warnings and precautions to consider before taking generic Viagra®.

What special precautions should I follow?

IV Administration

Sildenafil tablets does not protect you or your partner from getting sexually transmitted diseases, including HIV—the virus that causes AIDS. Please click here for more Important Risk Information Do not take Sildenafil tablets more than one time each day. If you are concerned that you are having side effects related to the medication, please consult your doctor. Please click here for full Prescribing Information and Patient Information. Generic for Viagra ® contains Sildenafil, a doctor-trusted ingredient that is effective for treating ED, which means that it is just as effective for the treatment of erectile dysfunction as the original ED medication.

7.1 Nitrates

Generic Viagra® is a PDE5 (phosphodiesterase type 5) inhibitor, which works by blocking the PDE5 enzyme, which in turn temporarily relaxes smooth muscle and improves blood flow to the penis during sexual stimulation. While Viagra® is easily recognizable as the “little blue pill,” the generic for Viagra® comes in many different colors and shapes. Authentic pills may be white or blue, round or diamond, etc. The cost of a generic for Viagra® tablet varies based on the strength of the sildenafil tablet manforce 50 mg dose of sildenafil it contains, but generally costs anywhere from about $4 to $10 per dose, compared to $50 to $70 per dose for brand-name Viagra®. Through Hims, generic for Viagra® costs 95% less than branded Viagra®. You can get the generic for Viagra® through an online or local pharmacy with a prescription from a licensed medical provider. Generic for Viagra® is not available over-the-counter.

Brand Name	Company	Formulation Type	Price Range
Viagra	Pfizer	Tablet	$10–$25 per pill
Kamagra	Ajanta Pharma	Generic	$2–$7 per pill
Sildenafil RX	Various pharmacies	Various generics	$3–$9 per pill
Revatio	Pfizer (for pulmonary hypertension)	Same strength, different use	Varies

To get genuine generic for Viagra®, ensure that you are seeing a healthcare provider licensed in your state and have your prescription filled by a qualified pharmacy, one that is licensed in your state and has 3rd-party accreditations like LegitScript.

2.1 Recommended Dosage in Adults

Concomitant use may lead to hypotension (5.5) •Decreased blood pressure, syncope, and prolonged erection may occur at higher sildenafil exposures. In patients taking strong CYP inhibitors, such as ritonavir, sildenafil exposure is increased. Decrease in sildenafil tablets dosage is recommended (2.4,5.6) Most common adverse reactions (≥ 2%) include headache, flushing, dyspepsia, abnormal vision, nasal congestion, back pain, myalgia, nausea, dizziness and rash (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Evaric Pharmaceuticals, Inc. at 1-866-495-1995 or FDA at 1-800-FDA-1088 or •Sildenafil tablets can potentiate the hypotensive effects of nitrates, alpha blockers, and anti-hypertensives ( 4.1, 5.5, 7.1, 7.2, 7.3, 12.2) •With concomitant use of alpha blockers, initiate sildenafil tablets at 25 mg dose (2.3) •CYP3A4 inhibitors (e.g., ritonavir, ketoconazole, itraconazole, erythromycin): Increase sildenafil tablets exposure (2.4, 7.4,12.3) •Ritonavir: Do not exceed a maximum single dose of 25 mg in a 48 hour period ( 2.4, 5.6) •Erythromycin or strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, saquinavir): Consider a starting dose of 25 mg (2.4,7.4) Sildenafil tablets are indicated for the treatment of erectile dysfunction. For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity.

Can I take sildenafil every day?

However, sildenafil tablets may be taken anywhere from 30 minutes to 4 hours before sexual activity. Sildenafil tablets were shown to potentiate the hypotensive effects of nitrates and its administration in patients who use nitric oxide donors such as organic nitrates or organic nitrites in any form is therefore contraindicated [see Contraindications (4.1),Drug Interactions (7.1),and Clinical Pharmacology (12.2)]. When sildenafil tablets are co-administered with an alpha-blocker, patients should be stable on alpha-blocker therapy prior to initiating sildenafil tablets treatment and sildenafil tablets should be initiated at 25 mg [see Warnings and Precautions (5.5),Drug Interactions (7.2),and Clinical Pharmacology (12.2)]. Ritonavir The recommended dose for ritonavir-treated patients is 25 mg prior to sexual activity and the recommended maximum dose is 25 mg within a 48 hour period because concomitant administration increased the blood levels of sildenafil by 11-fold [see Warnings and Precautions (5.6),Drug Interactions (7.4),and Clinical Pharmacology (12.3)]. CYP3A4 Inhibitors Consider a starting dose of 25 mg in patients treated with strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, or saquinavir) or erythromycin. Package insert / product label Generic name: sildenafil citrate Dosage form: tablet, film coated Drug classes: Agents for pulmonary hypertension, Impotence medications Warnings and Precautions, Effects on the Eye (5.3) 08/2017 Sildenafil tablet is a phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) (1) •For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity.

The societal impact of sildenafil has been profound since its introduction.
It helped destigmatize the discussion and treatment of erectile dysfunction.
It spawned a multi-billion dollar market for sexual health pharmaceuticals.
The "Viagra" brand name became one of the most recognized in the world.
It led to increased research and development in urology and sexual medicine.
It also raised important questions about medicalization and lifestyle drugs.
Direct-to-consumer advertising for ED treatments became widespread.
It prompted debates about insurance coverage for quality-of-life medications.
The success of sildenafil accelerated research into other PDE5 inhibitors.
It highlighted the importance of serendipity in drug discovery.
Its impact extends beyond medicine into cultural and social spheres.

However, sildenafil tablets may be taken anywhere from 30 minutes to 4 hours before sexual activity (2.1) •Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg (2.1) •Maximum recommended dosing frequency is once per day (2.1) Tablets: 25 mg, 50 mg, 100 mg (3) •Administration of sildenafil tablets to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form. Sildenafil tablets were shown to potentiate the hypotensive effect of nitrates ( 4.1, 7.1, 12.2) •Known hypersensitivity to sildenafil or any component of tablet (4.2) •Administration with guanylate cyclase (GC) stimulators, such as riociguat (4.3) •Patients should not use sildenafil tablets if sexual activity is inadvisable due to cardiovascular status (5.1) •Patients should seek emergency treatment if an erection lasts >4 hours. Use sildenafil tablets with caution in patients predisposed to priapism (5.2) •Patients should stop sildenafil tablets and seek medical care if a sudden loss of vision occurs in one or both eyes, which could be a sign of non arteritic anterior ischemic optic neuropathy (NAION). Sildenafil tablets should be used with caution, and only when the anticipated benefits outweigh the risks, in patients with a history blue sildenafil of NAION. Patients with a”crowded” optic disc may also be at an increased risk of NAION. (5.3) •Patients should stop sildenafil tablets and seek prompt medical attention in the event of sudden decrease or loss of hearing (5.4) •Caution is advised when sildenafil tablets are co-administered with alpha-blockers or anti-hypertensives. Concomitant use may lead to hypotension (5.5) •Decreased blood pressure, syncope, and prolonged erection may occur at higher sildenafil exposures. In patients taking strong CYP inhibitors, such as ritonavir, sildenafil exposure is increased. Decrease in sildenafil tablets dosage is recommended (2.4,5.6) Most common adverse reactions (≥ 2%) include headache, flushing, dyspepsia, abnormal vision, nasal congestion, back pain, myalgia, nausea, dizziness and rash (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Evaric Pharmaceuticals, Inc. at 1-866-495-1995 or FDA at 1-800-FDA-1088 or •Sildenafil tablets can potentiate the hypotensive effects of nitrates, alpha blockers, and anti-hypertensives ( 4.1, 5.5, 7.1, 7.2, 7.3, 12.2) •With concomitant use of alpha blockers, initiate sildenafil tablets at 25 mg dose (2.3) •CYP3A4 inhibitors (e.g., ritonavir, ketoconazole, itraconazole, erythromycin): Increase sildenafil tablets exposure (2.4, 7.4,12.3) •Ritonavir: Do not exceed a maximum single dose of 25 mg in a 48 hour period ( 2.4, 5.6) •Erythromycin or strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, saquinavir): Consider a starting dose of 25 mg (2.4,7.4) Sildenafil tablets are indicated for the treatment of erectile dysfunction. For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. However, sildenafil tablets may be taken anywhere from 30 minutes to 4 hours before sexual activity. Sildenafil tablets were shown to potentiate the hypotensive effects of nitrates and its administration in patients who use nitric oxide donors such as organic nitrates or organic nitrites in any form is therefore contraindicated [see Contraindications (4.1),Drug Interactions (7.1),and Clinical Pharmacology (12.2)].

Parameter	Description	Typical Value
Absorption Time	Time to reach peak plasma levels	30-120 minutes
Half-life	Time for plasma concentration to reduce by half	4 hours
Bioavailability	Percentage of dose that reaches circulation	40%
Metabolism	Mainly processed in the liver	Cytochrome P450 enzymes
Excretion	Mainly via feces and urine	-

When sildenafil tablets are co-administered with an alpha-blocker, patients should be stable on alpha-blocker therapy prior to initiating sildenafil tablets treatment and sildenafil tablets should be initiated at 25 mg [see Warnings and Precautions (5.5),Drug Interactions (7.2),and Clinical Pharmacology (12.2)]. Ritonavir The recommended dose for ritonavir-treated patients is 25 mg prior to sexual activity and the recommended maximum dose is 25 mg within a 48 hour period because concomitant administration increased the blood levels of sildenafil by 11-fold [see Warnings and Precautions (5.6),Drug Interactions (7.4),and Clinical Pharmacology (12.3)]. CYP3A4 Inhibitors Consider a starting dose of 25 mg in patients treated with strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, or saquinavir) or erythromycin.