
Viagra (Sildenafil)









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 following sexual stimulation, thereby allowing them to enjoy intimate moments with their partner. This medication operates by enhancing blood flow to the penis, which promotes a greater level of rigidity to an existing erection and the ability to sustain that level of erection throughout sexual activity.
It is crucial to emphasize that the term "existing" is highlighted here because Viagra does not induce an erection on its own; rather, it augments an erection that is already present. Approved for over-the-counter prescription access by Health Canada, obtaining generic Viagra online is a straightforward process that requires a prescription from your healthcare provider.
Generic Viagra Vs Branded Viagra
Generic Viagra serves as an effective alternative for men seeking to overcome erectile dysfunction challenges. Reports indicate that it shares nearly the same efficacy levels as the branded Viagra tablets. The principal attraction of generic Viagra is that it is typically offered at a more affordable price while still being obtainable with the same prescription that you would receive for branded Viagra from your doctor.
It is important to note that the same guidelines for safe usage apply to generic Viagra, just as they do for the branded formulation. Therefore, you can be confident that the availability of generic Viagra signifies it has been vetted and approved by Health Canada.
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
Statistics show that a notable majority, specifically over 80% of men who obtain Viagra online or have their prescription filled through local pharmacies, typically experience the desired benefits associated with this medication. This outcome is similarly observed among those opting for a more budget-friendly option with generic Viagra.
It is imperative to take VIAGRA precisely as directed by your healthcare provider. The appropriate dosage will vary from patient to patient and is contingent on individual health conditions and responses. It is suggested that you consume your daily dose of VIAGRA roughly one hour prior to the planned sexual activity with your partner. The tablet should be swallowed in its entirety with a glass of water, and do keep in mind that exceeding more than one dosage in a 24-hour period is strongly discouraged, as this could significantly heighten the risk of experiencing dangerously low blood pressure levels.
Additionally, when ordering Viagra online, it's important to understand that the time it takes for VIAGRA to manifest its effects can differ considerably between individuals. Generally, patients find that the onset of effects occurs within a window of 30 minutes to 1 hour, and this pattern is also observed with generic Viagra. It’s worth noting that consuming a heavy meal beforehand may prolong the time it takes for the medication to take effect; hence, using VIAGRA on an empty stomach can enhance its onset.
Ingredients
Viagra Dosage Information
VIAGRA may be ingested with or without food, providing flexibility for patients regarding meal timings.
The recommended dosage for the majority of patients starts at a 50mg dose about 1 hour prior to engaging in sexual activity. Some individuals may find efficacy with a dose taken as soon as 30 minutes prior to sex, while others might benefit more from taking the medication up to 4 hours in advance.
Depending on how your body responds to the medication, your healthcare provider may decide to adjust your dosage, potentially increasing it to 100mg or reducing it to 25mg based on your individual needs and doctor’s guidance.
The maximum allowable dosage is capped at once a day, and more comprehensive dosage details will be included in the printed guidelines provided with your purchase when you order Viagra online or when you collect your prescription at the pharmacy.
Cautions
While VIAGRA is an effective solution for many, it may not be suitable for all men due to specific medical conditions that can inhibit the safe use of this medication. Patients should have an open discussion about their medical history with their healthcare provider prior to initiating treatment with either branded or generic Viagra. It may be necessary to bring up any of the following health concerns:
- If you are currently taking any nitrate medications
- History of HIV/AIDS
- Irregular heartbeat issues
- Diagnosis of coronary artery disease
- History of heart attack, stroke, or pre-existing heart conditions
- High blood pressure or experiences with low blood pressure
- Penile abnormalities, including a curved penis or congenital defects
- Known bleeding disorders
- Retinitis pigmentosa
- Conditions that lead to thickened blood or obstructed blood flow, such as leukemia, multiple myeloma, and sickle cell disease
- Instances of priapism
- Heart or vascular diseases
- Severe dysfunction of the kidneys or liver
Exercise caution: under no circumstances should men alter their prescribed dosage without first consulting their healthcare provider.
Side Effects
While VIAGRA has been effective in addressing erectile dysfunction for the majority of patients, it is essential to be aware that there is a potential risk of experiencing unwanted side effects while taking this medication. All pharmaceutical agents come with a chance of side effects, and Viagra in Canada is no exception. While many side effects experienced are typically mild and temporary, some may be serious and necessitate immediate medical attention. Should you feel unwell while taking Viagra, it is critical to reach out to your healthcare provider promptly.
Both common and rare side effects may include:
- Flushing or redness of the skin
- Headaches
- Congestion in the nasal passages
- Discomfort in the stomach following meals
- Alterations in vision (such as blurred vision, changes in color perception, or increased sensitivity to light)
- Pain in the bladder
- Presence of cloudy or bloody urine
- Dizziness or lightheadedness
- Increased frequency of urination or discomfort while urinating
- Diarrhea
- Eye bleeding
- Seizures
- Reduced or double vision; in severe cases, there could be a risk of blindness
- A blue tint in vision
- Prolonged, painful, or inappropriate erections (known as priapism)
- Redness, burning feelings, or swelling in the eyes
- Anxiety and nervousness
Interactions with other medications can impact the effects of Viagra, and it is not advisable to mix it with certain other drugs during treatment. Details regarding potential drug interactions will be comprehensively covered in the guidelines that accompany your prescription. Be sure to read these documents thoroughly and seek immediate assistance if you experience any health complications, regardless of whether or not you are taking other medications simultaneously.
When utilized correctly, VIAGRA proves to be both a safe and efficient approach to treating erectile dysfunction in men. Always consult with your healthcare provider before beginning this medication to determine if it is appropriate for your specific health situation.
Dr Conor Sheehy
About Dr. Conor Sheehy (Page Author)
Dr. Sheehy (BSc Molecular Biology, PharmD) is a clinical pharmacist who specializes in cardiology, oncology, and outpatient care. With board certification as a pharmacotherapy specialist (BCPS), Dr. Sheehy's extensive experience in working closely with patients to fine-tune their medication and therapy plans for optimal health outcomes positions him as a competent authority in the pharmacy sector. Read More....
IMPORTANT NOTE: The information provided above is intended solely for general awareness and educational reasons. It is not meant to diagnose, treat, or serve as a substitute for professional medical or veterinary advice. Always consult with your physician, pharmacist, or veterinarian regarding the safety and appropriateness of any medication for yourself or your pet.