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Highlights:
- Viagra (generic sildenafil) is an effective erectile dysfunction (ED) treatment trusted for over 25 years.
- With increased blood flow and wider blood vessels, men are able to achieve better erections and maintain them for longer.
- Viagra isn’t for everyone, so be sure you understand the pros and cons.
- Common side effects include headaches and upset stomach. Seek medical attention for serious side effects like low blood pressure or an erection that won’t go away.
- Natural ED remedies are risky, making FDA-approved Viagra a safer option.
Erectile dysfunction (ED) is more common than you might assume — about 30 million American men struggle to achieve and maintain an erection. For more than 25 years, Viagra and its generic counterpart sildenafil have been the go-to treatment for ED, helping countless men regain their confidence and bring satisfaction back into their sex lives.
What Is Viagra?
Viagra® is the brand name for sildenafil citrate, a drug developed by Pfizer. In 1998, it was approved by the FDA, making it the first oral treatment for erectile dysfunction. Nicknamed “the little blue pill,” Viagra is a recognizable brand name, but generic sildenafil offers the same effectiveness at a more affordable cost.
Viagra Overview
Viagra is an as-needed medication that belongs to the class of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. This type of drug improves blood flow throughout the body—including the penis—making it easier to achieve and maintain an erection when aroused.
What is Viagra Used For?
Originally, Viagra was intended to treat hypertension (high blood pressure), but during trials, researchers discovered that firmer erections were an unexpected side effect. Today, Viagra’s primary use is for treating ED.
ED becomes more common with age, but it can be caused by certain health conditions, medications, mental health, lifestyle habits, or many other factors. This condition affects millions of men, and for many, Viagra has become a game-changer.
How Does Viagra Work?
How Viagra helps with ED is straightforward. It doesn’t increase sexual desire or libido; instead, it enhances the mechanical process that causes an erection.
Viagra works by blocking the naturally occurring PDE5 enzyme, which plays a role in regulating blood pressure. By blocking PDE5, Viagra relaxes blood vessels and improves blood flow to the penis. Improved blood flow allows harder, longer-lasting erections when a man is sexually aroused. Viagra does not cause erections without sexual stimulation.
Viagra Effectiveness
Most men find Viagra highly effective. Research shows that about 70% of men with ED experience noticeable improvement, though Viagra’s effectiveness will vary depending on the underlying cause of ED, overall health, and other medications.
Viagra is not a cure for erectile dysfunction, but it can be a reliable option to improve erections and sexual experiences.
Benefits of Viagra
Viagra helps men achieve and maintain an erection so they can enjoy more satisfying sex. More reliable erections can:
- Boost sexual confidence
- Improve relationships affected by ED
- Enhance partner’s sexual satisfaction
For some men with ED, Viagra can also help improve the symptoms of benign prostatic hyperplasia (BPH), a common prostate condition that can affect a man’s ability to achieve an erection.
Does Viagra Improve Sexual Performance?
Incorporating Viagra into your sex life can be an improvement, but it doesn’t affect sexual desire. Instead, it helps to achieve and maintain a firmer erection, which can lead to more mutually satisfying sex.
Remember that Viagra only works during arousal or sexual activity. It doesn’t produce spontaneous erections.
Viagra vs Natural Remedies
If you’re searching for Viagra or generic sildenafil, you may encounter so-called natural Viagra or other ED remedies. Research shows some support for foods like watermelon and oysters, and many people say herbs like horny goat weed, ginseng, and saw palmetto will do the trick.
Unfortunately, the evidence isn’t overwhelming for the effectiveness and safety of natural remedies. Some approaches may work for some men but not for many others. Some, like Spanish fly, can even be dangerous.
Viagra is an FDA-approved treatment specifically designed to target ED. Trusted for decades, this prescription medication is a safer, more effective way to reliably manage ED under the supervision of a medical professional.
Whether you’re interested in Viagra or another ED treatment, focus on your overall health. Lifestyle changes like eating well, staying active, and managing your underlying conditions are your best defense against erectile dysfunction.
How to Take Viagra
Viagra is available in tablet format, taken by mouth. Before you begin this or any ED medication, talk to your doctor (or one of ours). Make sure they know about all of your chronic conditions and any other medications you take.
Viagra Dosage Instructions
The standard starting dose of Viagra is 50 milligrams, but it can be reduced to 25 milligrams or increased to a maximum of 100 milligrams, depending on effectiveness and tolerance.
Most men start with the 50 milligram dose, but your doctor may adjust this depending on your body’s response. Never take more than one dose in a 24-hour period.
How to Take Viagra Pills
Swallow the tablet whole with water. If you’ve been prescribed 100 milligram pills but only need 50, you can safely divide the tablet using a pill splitter.
You can take Viagra with or without food, but taking it after a high-fat meal may delay its effects.
Best Time to Take Viagra
Viagra can start working within half an hour, so the best time to take it is about 30 to 60 minutes before you’re ready for sex.
Technically, you may be able to take Viagra every day, but this is intended to be an as-needed medication. Be sure to discuss your needs with your doctor. If you find you’re using it every day, another medication, such as Cialis for Daily Use, might be a better option for you.
How Long Does Viagra Last?
The effects of Viagra typically last for four to six hours. This doesn’t mean you’ll have a continuous erection during this time—you’ll just be able to achieve a better erection and maintain it longer.
What If It Doesn’t Work? Can You Take More?
If Viagra doesn’t work the first time, don’t panic. It’s not uncommon for some men to need a few tries to see results—especially if nerves, alcohol, or timing were a factor. Make sure you’re giving the medication time to work (about 30 to 60 minutes), and that you’re engaging in sexual stimulation.
Do not take a second dose on the same day unless advised by your doctor.
What Happens If I Take Too Much Viagra?
Taking too much Viagra can lead to side effects like severe headaches, dizziness, low blood pressure, and other cardiovascular issues. Seek medical attention if you experience any severe side effects.
Always make sure you’re aware of and understand the benefits and side effects of your medication.
Things to Avoid After Taking Viagra
To get the most from your medication and avoid unwanted side effects, keep these things in mind after taking Viagra:
- Avoid alcohol. A small drink may be fine, but too much alcohol can reduce Viagra’s effectiveness and increase side effects like dizziness and flushing.
- Skip fatty meals. High-fat foods can slow the absorption of Viagra, delaying its effects.
- Don’t combine with other ED meds. This can raise the risk of priapism and low blood pressure.
- Avoid driving or operating machinery. If you feel dizzy or experience vision changes, wait until the effects wear off.
Limit caffeine or stimulants. Energy drinks or excessive coffee may interact with Viagra’s effects on the cardiovascular system. So, if you’re still wondering, “Can I take Viagra with Red Bull?” The answer is a clear no.
Side Effects of Viagra
Like all medications, Viagra and generic sildenafil can cause side effects. This is a prescription-only medication because it’s important to avoid potentially dangerous interactions with other medications or health conditions.
Is Viagra Safe?
Viagra and sildenafil are closely monitored by the FDA, which oversees safety and monitors side effects. Always get your Viagra from a reputable source like eDrugstore.
For most men, Viagra is safe, but you should always talk to your doctor before taking this or any other medication. People with certain health conditions, like serious cardiovascular disease, should not take it. Viagra is only approved for adult men and should not be taken by women or people under the age of 18.
Viagra Side Effects
Before taking an ED medication, be sure you understand the side effects of Viagra. Because Viagra is a PDE5 inhibitor, most side effects are related to changes in blood flow.
Common side effects of Viagra include:
- Headache. The most common side effect of Viagra is headaches, often due to sudden changes in blood flow.
- Heartburn and nausea. PDE5 inhibitors have an impact on the gastrointestinal tract. For some men, this can lead to an upset stomach, especially when taken with alcohol or spicy foods.
- Back pain. Around 3 percent of Viagra users experience back pain caused by circulation changes, increased sensitivity to pain, and muscle relaxation.
- Flushing. Facial flushing is another common side effect. With less PDE5 available to constrict blood flow, you may experience red cheeks and a warm feeling.
- Nasal congestion. Increased blood flow can dilate the tiny vessels in your sinuses, leading to a stuffy nose.
Less-common side effects include:
- Dizziness. A temporary drop in blood pressure can cause lightheadedness or a sensation of weakness.
- Rash. Some people can experience a mild rash. If you are experiencing symptoms of an allergic reaction, call your doctor right away.
- Temporary vision changes. Blurry vision, light sensitivity, or seeing a slight blue tinge are less common but not unusual. While they can be alarming, Viagra-related vision changes are usually mild and resolve on their own as the medication wears off.
Viagra can also have serious side effects that require immediate medical attention. Rare but serious side effects can include:
- Priapism. It’s no joke—priapism (an erection lasting four or more hours) can lead to permanent damage to the penile tissue. This high-profile side effect is often mentioned, but is extremely uncommon.
- Hypotension (low blood pressure). Rarely, Viagra can cause a dangerous drop in blood pressure, especially among men with existing heart conditions.
- Sudden loss of vision or hearing. In extreme cases, people taking Viagra have experienced loss of vision in one or both eyes due to interrupted blood flow to the optic nerve. Others have experienced sudden hearing loss in what’s sometimes known as Viagra deafness.
Viagra Risks and Contraindications
Some people should not take Viagra or generic sildenafil. Others should use it with caution or under medical supervision.
Who Should Not Take Viagra?
- People taking nitrates
- People with serious cardiovascular conditions
- People with an allergy to sildenafil
- Women and people under the age of 18
Who Should Take Viagra Only With Caution?
- People with low blood pressure
- People taking alpha-blockers
- People with liver or kidney disease
- Individuals with a history of stroke or heart attack
- People with retinitis pigmentosa, as Viagra may impact vision
- People with sickle cell anemia or leukemia, as these can make priapism more likely
Keep in mind that these lists are general guidelines. In special cases, doctors may feel the benefits of taking a particular medication outweigh the risks, so if you are in one of these groups, talk to your doctor about your personal situation.
Viagra Drug Interactions
Like most medications, Viagra can have drug interactions and side effects—some of which can be serious. According to Drugs.com, a significant number of drugs and supplements can interact with this medication.
The most important potential interactions to be aware of include:
- Nitrates (nitroglycerin). These cardiovascular medications work in the same way as ED medications, by relaxing blood vessels and opening blood vessels. When combined with any PDE5 inhibitor such as Viagra, this can lead to a sudden or extreme drop in blood pressure (hypotension). Hypotension can lead to dizziness and falls.
- Alpha blockers and calcium channel blockers (doxazosin, tamsulosin, diltiazem, mibefradil). Taking alpha blockers and Viagra at the same time can lead to dangerously low blood pressure. Beta blockers may be safer to take with Viagra. Talk to your doctor.
- Protease inhibitors (atazanavir, indinavir, ritonavir, saquinavir). These drugs, usually used to treat HIV/AIDS, interact with the body’s metabolism of sildenafil, which can lead to increased side effects.
- Antibiotics (clarithromycin, erythromycin) and antifungals (itraconazole, ketoconazole). These drugs may cause Viagra and other medications to build up in your bloodstream, worsening side effects.
- Other erectile dysfunction medications (tadalafil, vardenafil, avanafil). Taking Viagra along with other ED medications can increase the risk of serious side effects like priapism and hypotension.
Other potential interactions include grapefruit and alcohol. Most doctors recommend limiting or avoiding these foods and beverages while taking Viagra or sildenafil.
You might wonder – can I take Viagra with Red Bull? Energy drinks like Red Bull contain high levels of caffeine and stimulants, which may increase heart rate or blood pressure. While there’s no direct interaction, combining the two could amplify side effects like flushing, dizziness, or palpitations, especially in sensitive individuals. It’s best to consult your doctor before mixing Viagra with energy drinks.
For the complete known interactions list, visit the Drugs.com Drug Interactions Checker. However, no list of potential drug interactions is complete, so let your provider know if you experience any new or unusual symptoms after taking this medication.
Viagra vs. Other ED Medications
Viagra might be one of the most well-known and widely used treatments for ED, but other options are available. Consider your needs and speak to your doctor before deciding on the treatment that’s right for you.
Viagra vs. Cialis
Viagra and Cialis (tadalafil) are two of the most popular ED treatments on the market today, but they are very different—especially when it comes to how long the effects last.
- Onset of action. Viagra takes about 30 to 60 minutes to start working, and Cialis kicks in more quickly.
- Duration. Viagra lasts about four to six hours and should be taken before planned sexual activity. Cialis can last up to 36 hours, so there’s more opportunity for spontaneous intimacy. Low-dose Cialis (also known as Cialis for daily use) may also be taken every day.
- Side effects. Both drugs have similar side effects like headaches, flushing, and nasal congestion. However, some men find that Cialis is easier on their stomachs.
Viagra vs. Vardenafil
Viagra and vardenafil (previously sold under the brand name Levitra) are both PDE5 inhibitors, but there are a few key differences.
- Onset and duration. Like Viagra, vardenafil starts working after 30 to 60 minutes and continues working for up to six hours.
- Strength. Vardenafil is very similar to Viagra, but this medication is stronger, so you may need a lower dose to get a similar effect.
- Interaction with food. One of the key benefits of vardenafil is that heavy, fatty foods do not significantly impact its effectiveness. Viagra, on the other hand, can be less effective when taken with a big meal.
Viagra vs. Stendra
Stendra (avanafil) is a newer generation PDE5 inhibitor with promising, rapid results for treating ED.
- Onset and duration. Stendra is one of the fastest-acting ED medications. It starts working after just 15 minutes and can last up to six hours, so it can be taken right before sexual activity.
- Generic options. Viagra is available as generic sildenafil, but currently, Stendra is only available by brand name and tends to be more expensive.
- Side effects. Stendra is more selective in targeting PDE5, and some men say they experience fewer side effects like vision changes and upset stomach.
What Is the Best ED Medication?
Ultimately, the best ED medication is the one you and your doctor agree works best for you, comes with the fewest risks to your health, and has the most manageable side effects.
Because they all work in approximately the same way, selecting the best option depends on factors like how quickly you need the medication to work, how long you need it to last, and how it interacts with your current health conditions and medications.
Viagra, Cialis, vardenafil, and Stendra can all be great choices. Your doctor will help you find the right treatment or the best Viagra alternative for you.
Viagra Pricing and Availability
The cost and availability of Viagra can vary. Brand-name Viagra is almost always more expensive than generic sildenafil, and higher doses cost more per tablet. You’ll also need to consider your preferred pharmacy—like CVS, Walgreens, Amazon, or eDrugstore—and whether your insurance covers this medication.
Viagra vs Generic Sildenafil Cost
Generic sildenafil is much more affordable than brand-name Viagra, often costing a fraction of the price. Generally, you can find generic sildenafil for as low as $2 to $10 per tablet, while Viagra can cost more than $90 per tablet.
Is Viagra Covered by Insurance?
Some private insurance plans cover Viagra and other ED medications, especially if there’s a medical need. Medicare typically does not. Always check with your insurance provider for coverage details.
Where Can I Find Viagra Discounts?
You can sometimes find discounts at your local pharmacy, but eDrugstore has great deals for 50 percent and 75 percent off on select products each month. eDrugstore also offers the option to buy in bulk for extra savings, discounts and convenience.
Is It Safe to Buy Viagra Online?
As long as you’re shopping from a reputable online source, like eDrugstore, it’s safe to buy Viagra online. Be sure to choose licensed pharmacies that require a prescription to ensure that you receive genuine, FDA-approved medications.
Avoid any website selling Viagra without a prescription.
Beware of Counterfeit “Viagra”
Viagra is one of the most counterfeited drugs. Scammers will offer so-called Viagra at deep discounts, but there’s no way to know what’s in these pills. Counterfeit drugs can contain ineffective or even harmful ingredients that put your health at risk.
Here’s how you can be sure your ED medications are safe.
- Legitimate sources always require a prescription.
- Verified pharmacies are accredited by organizations like the National Association of Boards of Pharmacy (NABP).
- Prices will be in line with pharmacy standards, not “too good to be true.”
- Packaging and tablet appearance will be uniform and clearly labeled.
The Advantages of Buying Viagra Online from eDrugstore
Buying Viagra online from eDrugstore is safe, convenient, discreet, and affordable.
- Convenient. You can choose your medication, get a prescription, and place your order from the privacy and comfort of your own home.
- Safe. eDrugstore only provides genuine, FDA-approved medications that are safe and appropriate for you.
- Affordable. With monthly discounts of up to 75% and bulk purchase options, eDrugstore makes it easier to save on your ED treatment costs.
- Discreet. Your order will be shipped promptly in discreet packaging—and shipping is always free.
- Professional support. eDrugstore’s licensed pharmacists are available 24/7 to answer questions about Viagra and other ED treatments.
For answers to the questions we hear most often about Viagra, see the FAQ below.
Ready to Give Viagra a Try?
Viagra is the most popular erectile dysfunction medication, and for good reason. It’s safe and effective for most men to take, and most side effects are mild and short-lived.
To help you discover if Viagra or the generic sildenafil is right for you, we offer a free medical consultation with a U.S.-licensed physician, who will write your prescription and have your order shipped to you free of charge.
You can order with confidence from eDrugstore, where it’s always safe to buy Viagra online. We sell only legitimate, FDA-approved medications.
FAQs about Viagra
- How much Viagra can I take?
The typical starting dose is 50 milligrams, but your doctor may recommend 25 or 100 milligrams, depending on your needs. Don’t take a double dose. - Is it safe to take Viagra every day?
Taking Viagra daily is probably safe, but it’s not recommended. If you’re looking for an everyday treatment, Cialis for daily use may be a better option. - How long does Viagra last?
Viagra typically lasts four to six hours and is most effective after about two hours. - How do I know if Viagra is working?
Viagra doesn’t increase sexual desire or cause a spontaneous erection. You’ll know it’s working if you find it easier to achieve and maintain an erection while aroused. - Why isn’t Viagra working for me?
Everyone’s experience is different. Stress, underlying health issues, incorrect timing, and even diet can impact how well your medication works. If you’re worried about what happens if Viagra doesn’t work, ask your doctor for advice. - Can I take Viagra with alcohol?
Heavy drinking while taking Viagra is not a good idea. Moderate alcohol consumption is generally safe, but drinking too much can worsen ED. - Can I take Viagra with Red Bull?
Mixing Viagra with energy drink —whether you prefer Red Bull or black coffee—is not a good idea. They may give you a boost, but they could also affect your blood pressure, especially if you have pre-existing heart conditions. - Can I take Viagra with cannabis?
Combining Viagra with marijuana can increase the risk of side effects like dizziness or low blood pressure. If you use cannabis by prescription, ask your doctor about possible drug interactions. - Can I take Viagra with blood pressure medication?
Viagra can interact with certain blood pressure medications, especially nitrates, and should only be taken under doctor supervision. - Can I take Viagra if I have heart problems?
If you have any heart conditions, talk to your doctor before using Viagra. This is especially true if you have issues with blood pressure. - Can I take Viagra if I have diabetes?
Diabetes can lead to ED, and yes, Viagra can be a safe and effective treatment for men with diabetes. Be sure to talk to your doctor to find the right dose.
Disclaimer: This article provides general information about health and related topics but is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
