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A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
Viagra is an erectile dysfunction treatment medication available by prescription and used by men to help them achieve an erection when intimate with a partner. The active ingredient in the medicationSildenafil is a vasodilator that works to improve blood flows into the corpus cavernosa of the penis when a man is sexually stimulated. It is a reliable medication in that regard, and men who receive the correct dosage and use it as indicated in their prescription can use it to overcome erectile dysfunction. Buy Viagra online from Canpharm and get the best Viagra price.
Erectile dysfunction (ED), also known as impotence, is a condition characterized by the inability to achieve or maintain an erection sufficient for sexual activity. It is a common sexual health problem that can affect men of all ages, although it becomes more prevalent with increasing age.
| Fact Table | |
|---|---|
| Formula | C22H30N6O4S |
| License | US FDA |
| Bioavailability | 41% |
| Legal status | US: RX Only |
| Chemical Name | Sildenafil |
| Elimination half-life | 3–4 hours |
| Dosage (Strength) | 25mg, 50mg, 100mg |
| Pregnancy | Consult Doctor |
| Brands | Viagra and Revatio |
| Protein binding | 96% |
| PubChem CID | 5212 |
| MedlinePlus | a699015 |
| ChEBI | 9139 |
| ATC code | G04BE03 |
| DrugBank | DB00203 |
| KEGG | D08514 |
| Routes of administration | By mouth (tablets) |
Take one Viagra pill with water 30 minutes to 1 hour before you foresee being intimate with your partner. The standard dosage is 50mg, but your dosage may be increased up to 100mg or decreased to 25mg depending on your response to the medication.
The active ingredient in Viagra is Sildenafil.
Patients should discuss the following medical conditions with their healthcare professional before taking Viagra:
Do not exceed your Viagra dosage as specified by your physician, serious health risks are possible, and taking excess medication will not result in enhanced effectiveness.
For use with ages 18 and up.
Negative drug interactions may occur between the Viagra pill and other Rx or OTC medications, including rosuvastatin, duloxetine, apixaban, tamsulosin, fluticasone nasal, empagliflozin, furosemide, escitalopram, atorvastatin, pregabalin, metoprolol, montelukast, budesonide, formoterol, alprazolam, rivaroxaban, cetirizine.
Let your doctor know of all medications you are currently taking before receiving a prescription and going to buy Viagra online.
Side effects from using Viagra may occur, and some users may have allergic reactions or breathing difficulties when they use this medication. If Viagra side effects are experienced, you may want to stop use and meet with your doctor again to discuss ED treatment medication alternatives.
Common side effects:
Remember, these are not exhaustive lists, and it's important to consult with a healthcare professional for personalized advice and guidance. If you prefer, you may contact the U.S. Food and Drug Administration (FDA) directly. Visit www.fda.gov/MedWatch or call 1-800-FDA-1088. For complete details about Viagra, please refer to Patient Information.
How Long Does Viagra Last?
Viagra typically lasts between four to eight hours with the exact duration depending on factors such as dosage and metabolism. Note that if your erection lasts more than six hours, you should call your doctor.
What Does Viagra Do?
Viagra helps with achieving and maintaining an erection while aroused. It does this by blocking an enzyme called PDE5, which itself reduces blood flow to the penis. It does not cause arousal, requiring sexual stimulation to work properly.
How to Use Viagra for Best Results?
Take Viagra up to an hour before sexual activity. Avoid consuming a high-fat meal before taking it, as it may delay its effects. Avoid alcohol and stress which can impair its effectiveness, and remember that sexual stimulation is required for it to work.
How Long Does It Take for Viagra to Work?
Typically, Viagra starts working within 30 minutes of taking it, but can vary from person to person, sometimes taking up to an hour for results.
Is Viagra Over the Counter?
No, Viagra is not available over the counter without a prescription and a doctor's approval. You will need to consult with a healthcare professional who can evaluate your health and determine if Viagra is suitable for you.
What Happens if a Woman Takes Viagra?
Viagra is designed for men and is therefore unsuitable for women. However, there is a separate medication called Addyi (flibanserin) that is specifically approved to treat low sexual desire in women that haven't had menopause yet.
How Long After Taking Viagra Can You Drink Alcohol?
Heavy drinking should be avoided when taking Viagra, as it can interfere with its effects and amplify it side effects. It (alcohol) can cause dizziness, drowsiness and low blood pressure. 1-2 drinks are safe, but anything more than that puts you at risk.
How Often Can You Take Viagra?
It is highly recommended that Viagra only be taken once per day (24 hours) at most. Taking it multiple times in a day lead to an erection that lasts 4 hours and more, which is a medical emergency as it damages the penis.
