Viagra tablets should be stored at room temperature between 68oF and 77°F (20oC and 25°C).

Parameter	Value	Notes
Absorption Time	30-60 minutes	Peak plasma concentrations
Bioavailability	~40%	Due to first-pass metabolism
Half-life	4-5 hours	Time for plasma concentration to reduce by half
Metabolism	Liver (CYP3A4 enzyme)	Mainly processed in the liver
Excretion	Feces and urine	About 80% in feces, 13% in urine

It should be kept in a tightly sealed container away from light. Avoid storing this medication in areas where it could get damp or wet, such as in bathrooms. If you no longer need to take Viagra and have leftover medication, it’s important to dispose of it safely. This helps prevent others, including children and pets, from taking the drug by accident.

Viagra works by increasing blood flow to the penis during arousal.
It is available in doses of 25 mg, 50 mg, and 100 mg tablets.
Viagra is generally safe for most men when used as directed.
It is not an aphrodisiac and requires sexual stimulation to work.
The medication has revolutionized the treatment of erectile dysfunction.
Viagra is often used off-label for pulmonary hypertension treatment.
Age, health, and other medications can affect Viagra’s effectiveness.
Improper use can cause low blood pressure or vision problems.

It also helps keep the drug from harming the environment. Using more than the recommended dosage of Viagra can lead to serious side effects.

How it works

Viagra works to treat Raynaud’s disease by relaxing and widening certain blood vessels in your body. One review of studies found that PDE5 inhibitors, including Viagra, can improve Raynaud’s disease. (PDE5 inhibitors describes a certain class of drugs. Medications in the same class of drugs work in a similar way inside your body.) In fact, in the studies, these drugs reduced the number of Raynaud’s disease episodes people had. And the drugs also decreased how long the episodes lasted.

Drug details

If you have questions about using Viagra for Raynaud’s disease, talk with your doctor. Viagra is only approved for use in adult males with ED. It hasn’t been studied in people younger than 18 years of age. But you may have questions about whether Viagra can be used in females. Or you may be wondering if there’s a drug similar to Viagra that can help females with sexual dysfunction.

Revatio Dosing for PAH

We provide answers to these questions below. No, Viagra isn’t approved for use in females. And there isn’t enough evidence to show that Viagra works for treating sexual problems in females. In one study, some females who’d gone through menopause were given Viagra. They had improved arousal, vaginal lubrication, and orgasm when they took the drug. Do not use more Viagra than your doctor recommends.

Product	Dosage	Quantity + Bonus	Price
Viagra Soft Tabs	100mg	120 + 8 Pills	232.21€ 221.15€
Viagra Professional	100mg	90 + 2 Pills	207.09€ 197.23€
Viagra Generic	50mg	10 Pills	26.87€ 25.59€
Viagra Original	100mg	64 + 4 Pills	264.15€ 251.57€
Viagra Generic	100mg	90 + 6 Pills	129.02€ 122.88€
Viagra Generic	25mg	180 + 6 Pills	154.93€ 147.55€
Viagra Generic	100mg	270 + 10 Pills	270.47€ 257.59€
Viagra Generic	150mg	90 + 6 Pills	147.18€ 140.17€
Viagra Oral Jelly	100mg	63 + 7 Sachets	190.54€ 181.47€
Viagra Oral Jelly	100mg	30 + 5 Sachets	115.76€ 110.25€
Viagra Generic	100mg	60 + 4 Pills	96.36€ 91.77€
Viagra Original	100mg	22 + 2 Pills	120.71€ 114.96€
Viagra Original	100mg	34 + 2 Pills	163.67€ 155.88€
Viagra Super Active	100mg	90 + 10 Pills	165.61€ 157.72€
Viagra Generic	50mg	60 + 4 Pills	83.93€ 79.93€

If you think you’ve taken too much of this drug, call your doctor. You can also call America’s Poison Centers at 800-222-1222 or use its online tool. But if your symptoms are severe, call 911 or go to the nearest emergency room right away. Before taking Viagra, discuss your generic viagra professional sildenafil 100mg health history with your doctor. Viagra may not be right for you if you have certain medical conditions or other factors affecting your health. Be sure to talk with your doctor if any of the following apply to you: previous allergic reaction to Viagra, sildenafil, or a similar drug current or previous stroke or heart problems, including chest pain, heart attack, heart failure, and aortic stenosis physical changes or anomalies affecting your penis, such as bending, scarring, and Peyronie’s disease blood cell problems, such as sickle cell anemia, multiple myeloma, and leukemia Note: For more information about the potential negative effects of Viagra, see the “Viagra side effects” section.

Region / Country	Brand Names	Availability	Typical Price Range
United States	Viagra, Revatio	Widely available	$20 - $60 per pill
European Countries	Viagra, Sildenafil	Widely available	€15 - €50 per pill
India	Sildenafil Tablets	Available mainly online	₹50 - ₹200 per pill
China	Generic Sildenafil	Commonly available	¥30 - ¥150 per pill
Online markets	Various generics	Easily accessible	Varies widely

As with all medications, the cost of Viagra can vary.

Viagra was originally researched to treat cardiovascular diseases.
The medication may cause temporary loss of blue-tinted vision.
Sildenafil is used in both brand-name Viagra and generics.
The drug’s impact on blood vessels was a significant scientific breakthrough.
Side effects often subside within a few hours of intake.
Viagra’s popularity spurred further research in sexual medicine.
Men should watch for symptoms like chest pain or sudden vision changes.
Consulting a healthcare provider ensures personalized and safe treatment.

The actual price you’ll pay depends on your insurance plan, your location, and the pharmacy you use. To learn more about the cost of Viagra, refer to this article. Financial and insurance assistance: If you need financial support to pay for Viagra, or if you need help understanding your insurance coverage, help is available.

Related/similar drugs

It’s prescribed for females who haven’t yet gone through menopause. With HDSS, you have very low sexual desire that’s troublesome for you. The condition can have various physical or psychological causes. Unlike Viagra, which improves blood flow to male genitals, Addyi doesn’t work by improving blood flow to female genitals. Instead, Addyi affects the activity of certain neurotransmitters that are involved in sexual desire and arousal.

Other Interactions

(Neurotransmitters are chemicals found in your brain.) The neurotransmitters affected by Addyi include dopamine, noradrenaline, and serotonin. But it’s not known for sure how the drug’s action affects sexual function. For some females with HDSS, Addyi can improve sexual desire and increase the number of sexually satisfying events. But the drug hasn’t been found to be very effective. And keep in mind that it can take up to 8 weeks for Addyi to start working to treat HDSS.

Dosage adjustments

When you get Viagra from the pharmacy, the pharmacist will add an expiration date to the label on the bottle. This date is typically 1 year from the date they dispensed the medication. The expiration date helps guarantee that the medication remains effective during this time. How long a medication remains good (also called shelf-life) can depend on many factors. These factors include how and where you store the medication. A savings card is available for Viagra. For more information and to find out if you’re eligible for support, visit the program website. Generic version: Viagra is available as generic sildenafil.

Side Effect	Severity	Frequency	Description
Headache	Mild to Moderate	Common	Usually resolves within hours
Flushing	Mild	Common	Redness and warmth in face
Nasal Congestion	Mild	Common	Blocked or runny nose
Dizziness	Mild	Less Common	Slight feeling of lightheadedness
Visual Disturbances	Mild	Less Common	Blue tint or blurred vision

The generic is considered to be as safe and effective as the original drug. And generics tend to cost less than brand-name drugs. To find out how the cost of sildenafil compares to the cost of Viagra, talk with your doctor or pharmacist. Optum Perks is owned by RVO Health.

1. Not every man can or should take Viagra®.

Some studies looked at the effect of different doses of Viagra. These studies, which involved 1,797 males, lasted up to 6 months. 63% of people who took 25 mg of Viagra 74% of people who took 50 mg of Viagra 82% of people who took 100 mg of Viagra 24% of people who took a placebo (no active drug) Effectiveness of Viagra for ED with different causes Other studies have looked at the effect of Viagra in males whose ED had different causes. For example, one study specifically looked at people with ED that was related to complications of diabetes. 10% of people who took a placebo One study only involved males with ED that resulted from a spinal cord injury.

Know the potential side effects of Viagra

12% of people who took a placebo Also, using information from multiple studies, researchers looked at how well Viagra worked in males with ED that developed after they’d had surgery to remove their prostate gland. 15% of people who took a placebo In addition, males whose ED had psychological causes were specifically looked at as part of one study. 26% of people who took a placebo In addition to the use described above, Viagra may be used off-label. Off-label drug use is when a drug that’s approved for one condition is given for a different condition that’s not approved. Below is an example of an off-label use for Viagra.

Viagra and foods

Viagra isn’t approved to treat Raynaud’s disease, but sometimes it’s used off-label for this condition. With Raynaud’s disease, the blood vessels in your hands and feet spasm and temporarily become narrowed. These narrowed blood vessels restrict blood supply to your fingers or toes. This can cause your fingers and toes to look white and feel cold, painful, or numb. Episodes of spasm can be triggered by cold temperatures or stress. By clicking on this link, we may receive a commission. Viagra isn’t approved for use in females. And it hasn’t been studied in pregnant people. It’s unknown whether this drug is safe to take during pregnancy. In animal studies, Viagra didn’t cause fetal harm when given to pregnant animals. But animal studies don’t always predict what will happen in humans. If you have questions about the safety of Viagra use during pregnancy, talk with your doctor. It’s not known if Viagra is safe to take during pregnancy. (But keep in mind that the drug isn’t approved for use in females.) If you’re sexually active and you or your partner can become pregnant, talk with your doctor about whether you’ll need to use birth control while you’re taking Viagra. And it hasn’t been studied in people who are breastfeeding. Viagra may pass into breast milk, but it’s not known if this could affect a breastfed child. If you have questions about the safety of using Viagra while breastfeeding, talk with your doctor. Disclaimer: Medical News Today has made every effort to make certain that all information is factually correct, comprehensive, and up to date.

Viagra should be taken approximately one hour before sexual activity.
It may interact with medications for blood pressure and prostate issues.
Alcohol consumption can reduce the effectiveness of Viagra.
Patients should consult their doctor about their health history before use.
Erectile dysfunction can be caused by health issues such as diabetes or obesity.
Viagra is classified as a phosphodiesterase type 5 inhibitor.
Its patent was initially held by Pfizer, leading to widespread popularity.
Generic versions of sildenafil are available in many countries.

However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects.

Research continues into new formulations of ED medications inspired by Viagra.
Viagra's effects can differ based on individual blood chemistry.
Combining Viagra with recreational drugs is highly dangerous.
Men with neural or psychological ED might benefit from therapy alongside medication.
The drug was a result of research into vascular health and nitric oxide.
Viagra can be used as a diagnostic tool in certain medical tests.
It is crucial to follow prescribed doses to avoid adverse reactions.
Lifestyle changes, like exercise and diet, can improve ED alongside medication.

The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.

7. There can be minor or serious side effects when taking Viagra®.

In another study, both females who’d gone through menopause and those who hadn’t were given Viagra. They reported no significant positive effects from taking the drug. In males, Viagra improves blood flow to the penis by blocking the action of a chemical called PDE5. This chemical is also found in the vagina and the clitoris of females. So, in theory, if a female takes Viagra, it could increase blood flow to the genitals.

When to call your doctor

Some people refer to Addyi as female Viagra. However, Addyi doesn’t work like Viagra does. Below, we describe the condition Addyi is approved to treat and how the drug works. If you have questions about using Addyi, talk with your doctor. Addyi is a brand-name prescription drug that’s approved to treat hypoactive sexual desire disorder (HDSS). We evaluated the efficacy and safety of sildenafil, administered as needed in two sequential double-blind studies of men with erectile dysfunction of organic, psychogenic, or mixed causes. In a 24-week dose–response study, 532 men were treated with oral sildenafil (25, 50, or 100 mg) or placebo.

Mit Fernheiler Hans-Ulrich BURKHARD

Viagra: How It Works in the Body