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 be able to continue to enjoy lovemaking with their partner. It works by increasing blood flow to the penis to promote greater rigidity to an existing erection and the ability to maintain that level of rigidity. This enhancement allows for a more fulfilling and satisfying sexual experience.

The word existing is highlighted there as it is important to note as taking Viagra will not give you an erection - it will only enhance an existing one. This distinctive functionality is crucial for men who may struggle with erectile dysfunction but still wish to engage in intimate relationships. Approved by Health Canada for over-the-counter prescription access, it is easy to order generic Viagra online with a prescription from a physician, making it accessible to a wider audience.

Generic Viagra Vs Branded Viagra

Generic Viagra is a viable alternative to branded Viagra for men who are trying to overcome erectile dysfunction. It is reported to have nearly the same level of efficacy as the branded tablets, and the appeal of generic Viagra is that of course it is priced lower and can be acquired with the same prescription for Viagra that you receive from your physician. The affordability factor often makes generic options more appealing to men who are conscious of their healthcare expenditures.

The same guidelines for use and safe practices apply to generic Viagra in the same way they do for the branded medication, and you can be assured that the availability of generic Viagra means it has also been approved by Health Canada, ensuring the safety and quality of the product.

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 vast majority (upwards of 80%) of men who order Viagra online or have their prescription filled in their local pharmacy receive the intended benefit of the medication, and this is also true for those choosing a more affordable alternative in generic Viagra. It’s essential to understand how to optimize your experience with this medication for the best potential results.

Take VIAGRA exactly as prescribed by your healthcare professional. The correct dose for each patient will depend on their condition and individual response. It is generally recommended to take your daily dose of VIAGRA approximately one hour before you and your partner intend to have sex. Swallow the tablet whole with a glass of water, and before you buy Viagra, be aware that taking more than one dose daily is inadvisable as it greatly increases the risk of severely low blood pressure, which can lead to serious complications.

Similarly, be aware when you order Viagra online that the time it takes to see the effects of VIAGRA varies from person to person. It normally takes between 30 minutes to 1 hour for the medicine to begin working, and this tends to be true for generic Viagra as well. Patients may notice the medication takes longer to work after a heavy meal due to the slower digestive process. VIAGRA takes effect more quickly when taken on an empty stomach, therefore planning ahead is advantageous.

Ingredients

Viagra Dosage Information

VIAGRA may be taken with or without food, making it a flexible option for men with varying schedules.

The recommended dose for most patients is a 50mg dose approximately 1 hour before sexual activity. Some will find they can take it as soon as 30 minutes before sex and have it take effect in time, while others may find they are best taking it up to 4 hours before sex for optimal effectiveness.

The dosage could be upped to 100mg or decreased to 25mg depending on how you respond to the medications and based on your doctor’s recommendations through follow-up consultations. The maximum dose is once a day, and more detailed information regarding dosage will be found in the printed guidelines for taking the medication included with your purchase when you order Viagra online or pick up your prescription in the pharmacy, ensuring you have all the information you need.

Cautions

VIAGRA may not be right for some men, and most often this is because certain underlying medical conditions may prevent the individual from being able to take this medication safely and effectively. Patients are strongly encouraged to discuss the following medical conditions with their healthcare professional before taking either branded or generic Viagra. Be aware before you buy Viagra that it may be necessary to discuss any of the following medical conditions:

  • If you are taking any nitrate medication, as this combination can lead to dangerous drops in blood pressure;
  • HIV/AIDS, which may require tailored treatment approaches;
  • Irregular heartbeat or arrhythmias;
  • Coronary artery disease or other cardiovascular conditions;
  • Heart attack, stroke, or a history of heart conditions that could complicate treatment;
  • High blood pressure or low blood pressure, as these can impact your reaction to the medication;
  • Penile abnormalities, including curved penis and/or birth defects, which may require specialized care;
  • Bleeding problems or disorders that may influence clotting;
  • Retinitis pigmentosa, a genetic condition affecting vision;
  • Conditions causing thickened blood or slower blood flow, including leukemia, multiple myeloma (tumors of the bone marrow), or polycythemia, sickle cell disease, and thrombocythemia (blood problems);
  • Priapism, a condition that could be exacerbated by this medication;
  • Heart or blood diseases that warrant careful monitoring;
  • Severe kidney or liver problems, which can alter the drug's metabolism and clearance.

Caution – under no circumstances should men increase their dose without consulting with their healthcare professional to avoid possible adverse effects.

Side Effects

While VIAGRA helps most patients with correcting their erectile dysfunction issues, there is the possibility of unwanted side effects when taking it. All medicines have the potential for side effects, and Viagra in Canada is no exception. Most side effects are minor and temporary, however, some may be serious and require immediate medical attention. Speak to your doctor or other trusted healthcare professional immediately if you do not feel well on Viagra, even if you are unsure if it relates to the medication.

Common and less common side effects include:

  • Flushing or a sudden warmth in the face;
  • Headache, which is among the most reported side effects;
  • Nasal congestion that can be bothersome;
  • Stomach discomfort after meals that might cause distress;
  • Abnormal vision (blurred vision, seeing shades of colors differently than before, or sensitivity to light) that can impair daily activities;
  • Bladder pain or discomfort;
  • Cloudy or bloody urine, which should be reported immediately;
  • Dizziness that can affect balance;
  • Increased urination or pain during urination, indicating potential complications;
  • Diarrhea that may disrupt normal activities;
  • Bleeding of the eye, a rare but serious side effect;
  • Convulsions (seizures) that require emergency care;
  • Decreased or double vision, or in extreme cases, blindness, which is a critical medical condition;
  • A blue tint to your vision, which could be distressing;
  • Prolonged, painful, or inappropriate erection of the penis (priapism) that requires urgent medical attention;
  • Redness, burning, or swelling of the eye, indicating significant side effects;
  • Anxiety that can arise in conjunction with physical symptoms.

Other medications can alter the effects of Viagra, and the use of certain other drugs while taking it is not recommended. These potential drug interactions will be detailed in the medication guidelines provided with your prescription. Be sure to read them in full and seek immediate attention if you do not feel well while taking the medication – even if you are not taking other medications at the same time.

When used appropriately and under medical supervision, VIAGRA is a safe and effective means of treating erectile dysfunction in men. Before taking this medication, be sure to consult your doctor or healthcare professional to confirm it’s right for you, ensuring that it aligns with your health profile and expectations.

Dr Conor Sheehy

About Dr. Conor Sheehy (Page Author)

Dr. Sheehy (BSc Molecular Biology, PharmD) works as a clinical pharmacist specializing in cardiology, oncology, and ambulatory care. He’s a board-certified pharmacotherapy specialist (BCPS), and his experience working one-on-one with patients to fine-tune their medication and therapy plans for optimal results makes him a valuable subject matter expert for our pharmacy. Read More....

IMPORTANT NOTE: The information provided above is for general awareness and educational purposes only. It is not intended to diagnose, treat, or replace professional medical or veterinary advice. Always consult your physician, pharmacist, or veterinarian regarding the safety, suitability, and proper use of any medication for yourself or your pet.