Viagra

Viagra (Sildenafil)

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Description

Viagra Uses and Indications:

Chemical Name SILDENAFIL (sil-DEN-a-fil)

VIAGRA is a prescription medication specifically formulated to assist men in achieving and maintaining an erection after sexual arousal. It enables patients to continue experiencing enjoyable intimate moments with their partners. The way Viagra functions is by enhancing blood circulation to the penis, thus facilitating an increase in rigidity of an existing erection and allowing for longer-lasting performance.

The emphasis on "existing" is crucial, as it's important to understand that Viagra does not create an erection from scratch—it enhances the body’s natural responses to sexual stimulation. Approved by Health Canada for sale with a prescription, getting generic Viagra online is straightforward when you have a valid prescription from a healthcare provider.

Generic Viagra Vs Branded Viagra

Generic Viagra serves as an effective alternative for many men dealing with erectile dysfunction, offering similar levels of effectiveness compared to its branded counterpart. One of the significant advantages of opting for generic Viagra is its lower price point, which allows men to manage their condition affordably without compromising on quality, as it is still backed by the same prescription from their doctors.

Importantly, the same safety and usage guidelines apply to generic Viagra as they do to the branded version, assuring patients that they are using a medication that has also received the approval from Health Canada for safe distribution.

Fact Table

Formula

C22H30N6O4S

License

US FDA

Bioavailability

41%

Legal status

Rx-Only

Chemical Name

Sildenafil

Elimination half-life

3–4 hours

Dosage (Strength)

25mg, 50mg,100mg

Pregnancy

Consult Doctor

Brands

Viagra

Protein binding

96%

PubChem CID

5212

MedlinePlus

a699015

ChEBI

9139

ATC code

G04BE03

DrugBank

DB00203

KEGG

D08514

Routes of administration

By mouth

Directions

A significant majority (over 80%) of men who either order Viagra online or fill their prescription at a pharmacy find that they experience the intended benefits of this medication. This is equally true for those who opt for the more affordable generic Viagra options available.

It is essential to take VIAGRA precisely as your healthcare provider prescribes. The optimal dosage varies from one individual to another, depending on their specific health conditions and overall response to the medication. It is advised to take your dose of VIAGRA about one hour prior to engaging in sexual activity with your partner. Simply swallow the tablet whole with ample water. Keep in mind that exceeding the recommended dosage of one tablet per day could pose risks, including drastically low blood pressure, which can be harmful.

Additionally, when ordering Viagra online or preparing to take it, be aware that the onset of its effects can vary individually. Typically, it may take between 30 minutes to an hour for the effects to be felt, which is also applicable to generic Viagra. Patients should note that taking the medication after a heavy meal may slow down its effectiveness, whereas taking it on an empty stomach often leads to quicker results.

Ingredients

Viagra Dosage Information

VIAGRA can be taken with or without food, adding to its versatility in administration.

The commonly recommended starting dose for the majority of patients is 50mg, to be taken roughly one hour before planned sexual activity. Some individuals may find that they can take it as soon as 30 minutes before sex and still achieve the desired results, while others might find it more effective to take it up to 4 hours ahead of time.

Your doctor may adjust your dosage—either increasing it to 100mg or decreasing it to 25mg—based on your individual response to the medication and their professional judgment.

The maximum prescribed dose of Viagra is once daily, and detailed dosage instructions will be included in the informational material that accompanies your prescription, whether you order Viagra online or collect it from a pharmacy.

Cautions

While VIAGRA is beneficial for many, it may not be suitable for every individual due to certain medical conditions that could preclude safe use of this medication. Therefore, it is crucial for patients to discuss their medical history, including any relevant conditions, with their healthcare professional before using either branded or generic Viagra. Prior to purchasing Viagra, consider whether you need to address any of the following medical factors:

  • Current use of any nitrate medications
  • History of HIV/AIDS
  • Irregular heartbeat issues
  • Diagnosis of coronary artery disease
  • Prior heart attack, stroke, or otherwise compromised cardiac history
  • High or low blood pressure records
  • Penile abnormalities such as a curved penis or congenital defects
  • Bleeding disorders
  • Retinitis pigmentosa diagnosis
  • Conditions leading to thicker blood or reduced circulation, including leukemia, multiple myeloma, sickle cell disease, and thrombocythemia
  • Instances of priapism
  • Heart or vascular disease history
  • Severe kidney or liver health concerns

Caution: Men should never increase their dosage without prior consultation with their healthcare provider.

Side Effects

While many patients successfully use VIAGRA to remedy their erectile dysfunction, there are potential side effects that could occur, as is the case with any medication. Most side effects from Viagra use are minor and transient; however, some may be serious enough to warrant medical attention. If you experience any adverse effects while taking Viagra, it is important to consult your doctor or trusted healthcare provider immediately.

The potential side effects include, but are not limited to:

  • Facial flushing
  • Headaches
  • Nasal congestion
  • Stomach discomfort, particularly post-meal
  • Visual disturbances (blurred vision, changes in color perception, or heightened sensitivity to light)
  • Bladder discomfort
  • Cloudy or blood-tainted urine
  • Lightheadedness
  • Increased urination frequency or painful urination
  • Diarrhea
  • Eye bleeding
  • Convulsions (seizures)
  • Reduction in or double vision risk or, in extreme cases, potential blindness
  • A bluish hue to vision
  • Prolonged and painful erection (priapism)
  • Redness, burning, or swelling of the eye
  • Feelings of anxiety

Other medications can interfere with how Viagra works, and taking certain drugs while on Viagra is typically not advised. Detailed information regarding potential drug interactions will be provided in the information booklet accompanying your prescription. It is crucial to read this material thoroughly and seek immediate assistance if you experience any adverse reactions, regardless of concomitant medications.

When utilized properly, VIAGRA is both a safe and effective treatment option for erectile dysfunction in men. It is essential to consult your healthcare provider prior to commencing treatment to confirm that this medication is suitable for your specific health needs.

Dr Conor Sheehy

About Dr. Conor Sheehy (Page Author)

Dr. Sheehy (BSc Molecular Biology, PharmD) is a clinical pharmacist specializing in fields such as cardiology, oncology, and outpatient care. He holds board certification as a pharmacotherapy specialist (BCPS) and his extensive experience working directly with patients to refine their treatment plans for optimal outcomes positions him as a key expert in our pharmacy.

IMPORTANT NOTE: The information provided above serves solely for educational and general awareness purposes. It is not intended for diagnosing or treating any medical conditions or for replacing professional medical or veterinary advice. Always consult your physician, pharmacist, or veterinarian about the safety, appropriateness, and proper use of any medication for you or your pet.