Viagra

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Adult men who are dealing with ED (erectile dysfunction) are prescribed Viagra. ED means trouble getting or keeping an erection firm enough for satisfying sexual activity. Viagra’s active ingredient is sildenafil citrate. It belongs to a class of medicines called PDE5 (phosphodiesterase type 5), which functions by maximizing the flow of blood to the penis during sexual stimulation.

When you take Viagra correctly, it doesn’t cause constant erections or increase sexual desire on its own. It helps the body respond more normally to sexual stimulation. This action simply makes it easier to achieve and maintain an erection. Your doctor will write your exact dose on your prescription, with which you can easily order Viagra online from Canadian pharmacies.

Drug Summary

Viagra is used to treat:

• Erectile dysfunction (impotence) in adult men.

Benefits of Viagra

• Viagra simply works for many causes of ED, including vascular, diabetic, and mixed physical and psychological factors.
• It improves overall sexual satisfaction and intimacy for both partners.
• Works within 1 hour of use.
• Men using this prescription drug feel confident, as it can help in reducing distress related to sexual performance.

Viagra Dosage Guide for ED Treatment

Recommended Viagra Dosage for Adult Men

• Starting dose: The typical dose is 50 mg taken by mouth (as needed).
• The best time to take a Viagra tablet is about 1 hour before sexual activity.
• Dose adjustments: Based on how well it works for you, the dose may be:
• increased to 100 mg once per dose
• decreased to 25 mg once per dose
• Maximum dose: The recommended dosing frequency is once per day.

Dose Considerations in Special Groups

In men 65 years and older, or those with significant liver disease, kidney disease, or taking strong CYP3A4 inhibitors.

• Starting dose: it is often 25 mg once, taken only when needed.

When you use Viagra with alpha blockers (example, for prostate enlargement).

• The patient should be stable on the alpha blocker first.
• Viagra is usually started at 25 mg to reduce the risk of low blood pressure.

Note: Viagra is not meant to be taken multiple times in 24 hours.

To take Viagra tablets correctly for the best results, follow these instructions:

• Use this medicine as directed by your prescriber and only when needed.
• Take the Viagra tablet by mouth with a full glass of water, usually once in 24 hours.
• You may take these tablets with food or without it. Remember, a high-fat meal (such as burgers and fries) may delay how quickly it starts to work.
• An erection will not occur automatically. Sexual stimulation (physical or mental arousal) is still required for Viagra to work.
• Do not drink large amounts of alcohol before taking Viagra tablets.

How Viagra (Sildenafil) Works to Treat Erectile Dysfunction?

Viagra contains sildenafil, a phosphodiesterase type 5 (PDE5) inhibitor. During sexual stimulation, nerves in the penis release nitric oxide (NO), which increases a messenger called cyclic guanosine monophosphate (cGMP). It simply relaxes smooth muscle in the blood vessels of the penis. This action allows more blood to flow in and create an erection.

PDE5 is the enzyme that helps in breaking down cGMP. Viagra blocks PDE5 and helps cGMP stay active longer, so blood vessels remain relaxed and more blood stays in the penis during sexual stimulation. This actually improves the quality and duration of erections.

Viagra doesn’t increase sexual desire and does not work without arousal. Its main job is to support the natural erection pathway that may not be working well in men with erectile dysfunction.

Common Viagra side effects may include:

• Flushing
• Back or muscle pain
• Headache
• Indigestion
• Vision changes
• Dizziness
• Nausea

Serious side effects: These are rare, but if any of them happen to you, call 911 or go to the ER right away.

• Priapism (a painful erection that stays for too long)
• NAION (non-arteritic anterior ischemic optic neuropathy), it’s a condition that can damage your optic nerve & lead to permanent vision loss
• Low blood pressure
• Cardiovascular problems like irregular heartbeat, or stroke (especially in people with pre-existing heart conditions
• Serious allergic reactions

There’s no boxed (black box) warning for Viagra, but the official label emphasizes serious cardiovascular, ocular, and priapism risks, as well as strict nitrate and riociguat contraindications.

• These combinations can cause a sudden, dangerous drop in blood pressure, and that’s why Viagra is contraindicated:
• With any form of organic nitrates, such as:
• Nitroglycerin tablets or sprays
• Isosorbide pills or patches
• With guanylate cyclase stimulators such as:
• Riociguat (Adempas)
• Viagra should be used carefully or avoided in men with conditions that predispose to priapism, like:
• Sickle cell anemia
• Multiple myeloma
• Leukemia
• Penile deformities like Peyronie’s disease
• Viagra has vasodilating (blood vessel widening) effects. So use it with caution in men who have:
• Resting hypotension
• Uncontrolled high blood pressure
• Serious arrhythmias
• Left ventricular outflow obstruction
• Do not take Viagra if you already use nitrate medications or riociguat, and never mix it with “poppers” that contain amyl or butyl nitrite.

Take these precautions while using Viagra tablets:

• Never share Viagra with your friends or your partner. It’s because ED can signal a serious underlying disease, and each person’s risks and dosing needs are different.
• Tell your prescriber about all heart, kidney, liver, eye, and blood problems, including past heart attacks, strokes, or episodes of vision loss.
• Have a complete medical evaluation for ED before you start your treatment with Viagra or similar medications.
• Stop sexual activity and call for urgent medical help if you feel pain in your chest, shortness of breath, severe dizziness, or fainting during sex after taking Viagra.
• Do not drive, climb, or operate machinery if Viagra makes you very dizzy or affects your vision until you know how it affects you.

Viagra is usually taken only when needed, not on a strict daily schedule.

If you plan to take a dose before sexual activity and forget, simply take it when you remember, as long as you still plan to be sexually active and at least 24 hours have passed since your last dose.

If the opportunity for sexual activity has passed, skip the dose and wait until the next time (appropriate time).

If you take more Viagra than prescribed, like, for example, multiple tablets at once or repeated doses in 24 hours. This can increase the chances of severe side effects.

Overdose symptoms may cause severe headache, dizziness, low blood pressure, fainting, visual changes, or painful erection (for longer durations).

Very high doses may even worsen heart or eye complications. So if you or someone else may have taken too much Viagra, call 911 or the Poison Control Center at their toll free number 1-800-222-1222 as soon as possible.

You have to store your Viagra tablets properly so that they stay safe for your use:

• Store this medicine at room temperature, typically around 77°F (or up to 25°C).
• Do not store it in places where humidity is high, like near the sinks or in the bathrooms.
• Keep Viagra away from children or pets.
• Dispose of the expired or unused tablets carefully, under your regional disposal guidelines.

As there’s a risk of you getting an unfavorable outcome when you use Viagra with some drugs, your doctor may not prescribe it with these medications mentioned below:

• Erythromycin
• PDE5 inhibitors
• Ritonavir
• Medications used to lower blood pressure, such as:
• Alpha-blockers
• Calcium channel blockers
• Angiotensin receptor blockers
• Central agonists
• Nitrates like:
• Isosorbide dinitrate
• Nitroglycerin
• Isosorbide mononitrate
• Some antifungal medicines, for example:
• Ketoconazole
• Itraconazole
• Guanylate cyclase stimulators, including:
• Riociguat
• Vericiguat

When it comes to treating and managing erectile dysfunction, Viagra is often the first one that comes to mind. But there are several other Viagra alternatives available that can be just as effective. Here they are:

• Cialis (tadalafil)
• Stendra (avanafil)
• Levitra (vardenafil)
• Caverject (alprostadil)

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The content provided on the Polar Bear Meds website serves to increase knowledge about healthcare products and medical conditions and is strictly for informational purposes. It should not replace professional medical advice. We urge you to consult with a qualified healthcare professional prior to utilizing any prescription or over-the-counter medication. Our platform grants access to an extensive array of products, sourced internationally, including Canada. We collaborates with a licensed pharmacy partner in Canada and trusted dispensing pharmacies globally. All affiliated fulfillment centers are accredited by the regulatory authorities of their respective countries.