Viagra

Viagra (Sildenafil)

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Description

Viagra Uses and Indications:

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

VIAGRA is a prescription medication designed to help men maintain an erection following sexual stimulation and enable them to continue to enjoy lovemaking with their partner. It functions primarily by increasing blood flow to the penis, thereby promoting greater rigidity to an existing erection and the ability to sustain that degree of rigidity over time.

The term existing is crucial here, as it's vital to understand that taking Viagra will not spontaneously produce an erection – it will merely enhance and uphold an existing one. Approved by Health Canada for over-the-counter access with a prescription, obtaining generic Viagra online is a straightforward process with a physician's approval.

Generic Viagra Vs Branded Viagra

Generic Viagra represents a highly effective alternative to branded Viagra for men striving to combat the effects of erectile dysfunction. Reports indicate that it offers nearly identical efficacy as the branded variant, with the added benefit of being more cost-effective, allowing patients to utilize the same prescription they receive from healthcare professionals.

It is essential to note that the same guidelines for usage and safety apply to generic Viagra, mirroring those for the branded version. Hence, the availability of generic Viagra assures users that it has also received Health Canada’s approval for safe consumption.

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

The overwhelming majority, over 80% of men who opt to order Viagra online or fill their prescriptions at local pharmacies, enjoy the intended benefits associated with this medication. This is equally true for those who choose to utilize a more affordable alternative, the generic version of Viagra.

Take VIAGRA precisely as indicated by your healthcare professional. The appropriate dosage for each patient will depend on their personal health condition and individual response. It is generally suggested to consume your daily dose of VIAGRA roughly one hour prior to when you and your partner plan to engage in sexual activity. Swallow the tablet whole with a glass of water, and before making a decision to buy Viagra, please be cognizant that exceeding one dose within a 24-hour period is inadvisable, as this significantly heightens the risk of dangerously low blood pressure.

It’s also important to note that the time required to experience the effects of VIAGRA can vary from person to person. Generally, it can take anywhere from 30 minutes to an hour to realize its effects, and this phenomenon is also observed with generic Viagra. Additionally, patients may find that the medication's efficacy may be delayed after consuming a heavy meal. Conversely, taking VIAGRA on an empty stomach will facilitate a quicker onset of effects.

Ingredients

Viagra Dosage Information

VIAGRA can be ingested with or without food.

The suggested treatment dosage for most patients is a 50mg dose taken approximately 1 hour before anticipated sexual activity. Some patients might discover that they are able to take it as little as 30 minutes before engaging in sexual activity, while others may find that taking it up to 4 hours prior is more effective for them.

The dosage can be adjusted to a maximum of 100mg or reduced to a minimum of 25mg based on individual patient response and the guidance of your healthcare provider.

The upper limit for dosing is once per day, and additional comprehensive dosage information will be detailed in the printed instructions included with your order of Viagra online or when you collect your prescription at the pharmacy.

Cautions

While VIAGRA can be a suitable option for many men, there are circumstances under which it may not be right for certain individuals, typically due to specific medical conditions that could preclude their ability to safely take this medication. Patients should engage in a thorough discussion regarding the following medical conditions with their healthcare providers prior to initiating treatment with either branded or generic Viagra. Be mindful when ordering Viagra that it may be necessary to assess any of the following conditions:

  • If you are currently taking any nitrate medications
  • HIV/AIDS
  • Irregular heartbeat
  • Coronary artery disease
  • A history of heart attack, stroke, or other heart-related conditions
  • High blood pressure or low blood pressure considerations
  • Penile abnormalities, including conditions such as a curved penis or congenital defects
  • Bleeding disorders
  • Retinitis pigmentosa
  • Conditions that can cause thicker blood or impede blood flow, like leukemia, multiple myeloma, sickle cell disease, or thrombocythemia
  • Pripaism
  • Heart or blood diseases
  • Severe kidney or liver complications

It is crucial to exercise caution, and under no circumstances should men increase their dosage without prior consultation with their healthcare provider.

Side Effects

Although VIAGRA aids the majority of patients in addressing their erectile dysfunction concerns, there is always a risk of experiencing unwanted side effects when utilizing this medication. Every medication carries the potential for side effects, and Viagra in Canada is no exception. While most side effects may be relatively mild and transient, others may be more severe, necessitating immediate medical attention. It is advisable to reach out to your physician or another trusted healthcare provider without delay if you experience adverse symptoms while on Viagra.

Common, as well as less common side effects, may include:

  • Facial flushing
  • Headaches
  • Nasal congestion
  • Discomfort in the stomach, particularly after meals
  • Abnormal visual disturbances (such as blurred vision, altered color perception, or heightened sensitivity to light)
  • Discomfort or pain in the bladder
  • Cloudy or bloody urine
  • Dizziness
  • Increased frequency of urination or painful urination
  • Diarrhea
  • Eye bleeding
  • Convulsions (seizures)
  • Visual impairments either decreased or double vision, and in extreme cases, complete blindness
  • A bluish tint to your vision
  • Prolonged, painful, or inappropriate erections (priapism)
  • Redness, burning, or swelling in the eyes
  • Anxiety

Potential interactions with other medications can modify the effects of Viagra, and it is not advisable to use certain other drugs concurrently. Specific interactions will be elaborated upon in the medication guidelines that accompany your prescription. It is essential to review these guidelines in detail and seek immediate medical assistance if you experience any discomfort while taking the medication, even if you are not simultaneously taking other drugs.

When correctly utilized, VIAGRA represents a safe and effective treatment option for erectile dysfunction in men. Before starting this medication, ensure to consult with your physician or healthcare provider to verify its suitability for your specific situation.

Dr Conor Sheehy

About Dr. Conor Sheehy (Page Author)

Dr. Sheehy (BSc Molecular Biology, PharmD) is a highly experienced clinical pharmacist with a focus on cardiology, oncology, and ambulatory care. He is board-certified as a pharmacotherapy specialist (BCPS), and his extensive experience in collaborating closely with patients to tailor their medication and therapy plans for optimal outcomes positions him as an invaluable authority in our pharmacy.

IMPORTANT NOTE: The information provided above is solely for general awareness and educational purposes and should not be construed as a substitute for professional medical or veterinary advice. Always seek guidance from your physician, pharmacist, or veterinarian regarding the safety, appropriateness, and correct usage of any medication for yourself or your animal.