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Viagra (sildenafil) is used to treat erectile dysfunction. Erectile dysfunction is the inability to get or keep an erection for satisfactory sexual activity in men, also known as impotence. Sildenafil belongs to a class of medications called phosphodiesterase type5 (PDE5) inhibitors. Viagra works by relaxing muscles found in the walls of blood vessels and increasing blood flow to the penis during sexual stimulation to get and keep an erection. Keep in mind that Viagra does not cure erectile dysfunction or increase sexual desire.
under the brand Revatio is also used to treat pulmonary atrial hypertension (PAH). If you are taking Revatio do not take Viagra unless directed by your physician.
The recommended dose is 50mg about 1 hour before sexual activity, but it can be taken from 30 minutes to 4 hours before intercourse. The maximum daily dosage is once per day, with or without food. The dosage can be increased to 100mg or decreased to 25mg based on toleration and effectiveness. Viagra 100mg are available in KamaHealth.
| Medication | Onset | Duration |
|---|---|---|
| Sildenafil (Viagra) | 30-60 minutes | 4-5 hours |
The most common side effects consist of the following:
If you are a heart patient, sexual activity could put extra strain on your heart. If you experience the following serious side effects while having sex, stop and get medical help right away. The side effects include:
Some patients may experience serious side effects; if you experience these, get medical help right away. Serious side effects include:
We offer more than just lower prices on
sildenafil in Canada and free shipping. Some patients experience side effects that are not listed. If you have any concerns regarding Viagra, contact your physician.
Take note: This medicine is available only with a valid doctor's prescription.Take “Viagra” for a date much like this:warn that the effects may take 3-6 hours to take full::
Avoid alcohol with Viagra.Be sure to take alcohol regularly before you take Viagra and also during sexual activity and avoid high or low blood pressure drugs like Cialis, Levitra, Stendra, Stendra, Stendra, Cialis, Stendra, generic Viagra, Sildenafil, generic Viagra, tadalafil, vardenafil, and tadalafil, as† they can cause serious side effects.If you have a stomach ulcer, consult your physician.Evaluate your medical history and any other information you may know about adverse effects you may experience if you take Viagra.A salesman who has been exposed to a drug is worth $100 million in sales. The drug, prescribed for depression, Viagra (sildenafil citrate), is a miracle cure for cancer. The Food and Drug Administration (FDA) is warning Pfizer that it may not be getting its money back, and the drug’s maker, Merck, is trying to avoid a lengthy regulatory hurdles.
While Viagra has long been known for its effectiveness and ease of use, the drug has also been linked to increased suicide. Some physicians prescribe it for depression, panic attacks, and insomnia, but it is not clear whether these side effects are due to Viagra or the drug itself.
The FDA is advising consumers to avoid taking Viagra and any other drugs for depression, panic attacks, and insomnia while taking the drug. These drugs may also have potential side effects, such as headache, nausea, and flushing.
Dr. Reddy’s Laboratories Inc. and its subsidiary, Chemside, both produce medications that are used to treat erectile dysfunction, including the erectile dysfunction medication Revatio. The Revatio product is a newer medication that contains sildenafil citrate, the active ingredient in Viagra, and is available in 25 mg tablets. Chemside’s Revatio product is a smaller, but still effective ED medication. Chemside’s Viagra product, the same brand as Revatio, is also a newer medication.
The FDA has issued new warnings about the drug’s potential risks and side effects. The new warning information will apply to Pfizer’s Viagra products, and will also apply to Chemside’s Chemside products.
Pfizer’s patent for Revatio, along with its other products, is set to expire on May 31, 2018.
Originally Published: October 30, 2012 7:55 AM EST
This article is more than three months of research by the Journal of the American Medical Association.The FDA is advising consumers to avoid taking Viagra and any other drugs for depression, panic attacks, or insomnia while taking the drug.
It is from the source provided by the American Board of Psychiatry.
Written by
Published:October 30, 2012
August 22, 2011
July 2, 2011
June 30, 2006
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Published by
HealthDay fatty online sources for the most up-to-date information.
All this "research and writing required" doesn't do much for the benefit of the health writer.
The Journal of Psychiatry
Reviewed bySally Hargreaves
This is an open-access article distributed under the terms of the Creative Commons Attribution- noo 3.0 public license
The Journal of the American Medical AssociationThe American Journal of PsychiatryMichele J. Moll
| Active ingredient(s) | Strength | Size | Price |
|---|---|---|---|
| Sildenafil | 50 mg | 25 | $9.60 |
| Vardenafil | 60 mg | $10.40 | |
| $15.60 | |||
Sildenafil is a prescription medicine used to treat erectile dysfunction (impotence) in men. It works by increasing blood flow to the penis to help men get an erection. Sildenafil works by helping to relax the blood vessels in your penis, allowing blood to flow into your penis when you get sexually excited. It can also help relax the muscles in your penis to allow more blood to flow into your penis. Sildenafil should be taken with a full glass of water, preferably before meals. Do not take more than the recommended dose of one tablet per day. Sildenafil may take longer to work if you take it with food. Avoid taking the drug more than once a day. Sildenafil can cause side effects such as headache, flushing, upset stomach, and stuffy nose. If you experience any of these symptoms, stop taking sildenafil and contact a doctor right away. Sildenafil may also have possible side effects, including: vision changes, blurred vision, headache, and changes in erection hardness. Inform your doctor if you have any questions about this medicine. You should not take sildenafil if you are allergic to sildenafil or any other ingredient in this medicine. Sildenafil should not be used in women and children. This medicine is not recommended for use in children below 18 years of age. Inform your doctor if you have any medical conditions, especially heart problems, diabetes, liver problems, and low blood pressure. Before taking sildenafil, tell your doctor or pharmacist if you are taking or have recently taken any other medicines, including medicines obtained without a prescription. Sildenafil may interact with other medicines or substances, especially with blood thinners. This includes prescription and nonprescription (over-the-counter (OTC) medicines), vitamins, and minerals. Do not drink alcohol while taking sildenafil. Discuss with your doctor or pharmacist before starting or changing any medicines.
References| Brand name | Generic | Price per pill | |
|---|---|---|---|
| Viagra | Generic Viagra® | $5.60 | $0.50 |
| Levitra | Generic Levitra® | $4.40 | $0.60 |
| Stendra | Generic Stendra® | $3.80 | $0. |
Viagra is a phosphodiesterase type 5 inhibitor (PDE-5). Viagra is a prescription drug for erectile dysfunction. Sildenafil, the generic name of the drug, is an FDA approved drug used to treat erectile dysfunction in adult men. Viagra works by increasing blood flow to the penis during sexual stimulation. This increased blood flow leads to the production of nitric oxide, which then activates the enzyme guanylate cyclase. This causes the production of cyclic guanosine monophosphate (cGMP), which causes smooth muscle relaxation in the penis. When cGMP levels are increased, the blood vessels in the penis become dilated and can cause an erection. The drug works by relaxing the blood vessels in the penis, allowing for increased blood flow. This is where the name of Viagra comes in. This drug is a phosphodiesterase type 5 inhibitor (PDE-5), which means “relaxation of blood vessels.” The drug is available in the following forms:
It is important to note that Viagra is only effective when taken as prescribed. Your doctor will determine if it is safe to take Viagra while you are taking this drug. Do not take Viagra if you are also taking nitrates. Your doctor will also monitor your blood pressure, which will be monitored during this medication.
Your doctor will decide the dose for you based on your response to the medication. The typical dose is 50 mg taken about 30 minutes to 1 hour before sexual activity. The recommended dose for most patients is 25 mg. The maximum dose is 100 mg per day. If you do not achieve or maintain an erection for more than 4 hours, you should use a PDE-5 inhibitor (Viagra®).
You should not take more than one dose of Viagra at a time. If your erection lasts more than 4 hours, you should seek medical help right away.
Viagra works by blocking the enzyme phosphodiesterase 5, which is responsible for breaking down cyclic guanosine monophosphate (cGMP) in the body. cGMP is responsible for relaxing the blood vessels in the penis. This allows increased blood flow and results in an erection. Viagra is an FDA approved drug. Viagra is only available for prescription and you should only take it as directed by your doctor.
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