How Sildenafil Citrate Works in the Body

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. However, there’s less PDE5 in a female’s genitals than there is in a male’s penis.

What should I know about storage and disposal of this medication?

(PDE5 sildenafil citrate tables 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. 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.

Common Side Effects

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. We provide answers to these questions below. No, Viagra isn’t approved for use in females. This could explain why Viagra has less of a physical effect in females than it does in males.

And keep in mind that sexual problems can be related to reduced sexual desire and arousal.

Viagra is unlikely to address these issues.

How should this medicine be used?

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 sildenafil oral solution One study only involved males with ED that resulted from a spinal cord injury. 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.

Viagra and other medications

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 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.

Incidence not known

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. 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. While Viagra isn’t approved for use in females, a drug called Addyi is approved for use in certain females. 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). 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.

• Contraindications include use with nitrates and recent heart attack.
• Patients with contraindications should avoid sildenafil entirely.
• Visual disturbances including blue-tinted vision may occur.
• Use caution in patients with liver or kidney impairment.
• Sildenafil can interact with certain antibiotics and antifungals.
• Always inform your doctor about other medications you're taking.
• It does not protect against sexually transmitted infections.

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. (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 sildenafil citrate 120 mg 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.

At a glance

You should take Viagra according to your doctor or healthcare professional’s instructions. For most people, it’s recommended that you take Viagra as needed, about 1 hour before you plan to have sex. But Viagra can actually be taken anywhere from 30 minutes to 4 hours before sexual activity. It’s important to remember that you should not take the medication more than once a day. You can take Viagra either with or without food.

When to call your doctor

But if you take it with a meal, the drug may take about an hour longer than usual to start working. This is especially the case if you eat a high fat meal, such as a cheeseburger with fries. You don’t need to wait to take Viagra if you’ve recently eaten a meal. Just be aware that it might take a bit longer for the drug to work. It’s also important to remember that if Viagra gives you indigestion, taking the drug with food may help to reduce this side effect.

Revatio Injection

The safety and effectiveness of Viagra tablets that are crushed, split, or chewed haven’t been tested. And Viagra tablets are meant to be swallowed whole. It’s not known if crushing or chewing the tablets will make them work any differently than usual. If you have trouble swallowing Viagra tablets, you might find it easier to swallow the tablet with different drinks, such as water, juice, or milk. Or talk with your doctor or pharmacist about how else you can take the drug. 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.

• Some users report headaches and dizziness after taking sildenafil.
• A common side effect is facial flushing and nasal congestion.
• Rare side effects include sudden hearing loss or vision loss.
• Priapism requires urgent medical attention to prevent tissue damage.
• Sudden vision loss should be immediately evaluated by a doctor.
• Allergic reactions such as rash, hives, or swelling are possible.
• Discontinue use and seek medical help if serious side effects occur.

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

• Sildenafil is not recommended for children or minors.
• Elderly patients may need lower doses due to sensitivity.
• Use with caution if you have a history of stroke or unstable angina.
• Combining sildenafil with other ED drugs increases side effects risks.
• Be aware of counterfeit or substandard sildenafil products.
• Always purchase medication from reputable pharmacies.
• Consult a healthcare professional prior to initiating therapy.

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.

• Sildenafil is available in most countries through prescription only.
• It is used worldwide, with varying approval statuses.
• FDA and EMA have rigorous testing standards for sildenafil.
• Using the drug responsibly can lead to successful treatment outcomes.
• Combining sildenafil with other medications requires medical supervision.
• Be aware of the potential for drug interactions with heart or blood pressure meds.
• Always consult a healthcare professional for personalized advice.

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

Advice To Patients

If you want to crush, split, or chew Viagra tablets, ask your doctor or pharmacist if this is safe to do. The Food and Drug Administration (FDA) approves prescription drugs such as Viagra to treat certain conditions. Viagra may also be used off-label for other conditions. Off-label use is when a drug that’s approved to treat one condition is used to treat a different condition. Viagra is FDA-approved to treat erectile dysfunction (ED) in males ages 18 years and older.

Marketing and sales

With ED, you’re not able to get and keep an erection that’s firm enough to have sex. This condition is a common problem that’s experienced by many people. ED can be caused by several different factors. These include psychological or emotional problems, such as: But ED may also be caused by physical problems, such as: Viagra increases blood flow to your penis, which helps you have and maintain an erection. However, the drug itself doesn’t give you an erection.

Therapies for Erectile Dysfunction

It only works if you’re sexually aroused. In several clinical studies, Viagra was effective in treating ED. In these studies, males who used the drug had an improved ability to have and keep erections that helped them have sex. Some studies looked at the effect of different doses of Viagra. These studies, which involved 1,797 males, lasted up to 6 months. Do not use more Viagra than your doctor recommends. 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 health history with your doctor. Viagra may not be right for you if you have certain medical conditions or other factors affecting your health.

Effectiveness of Sildenafil

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