The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. In the penis this facilitates erection and sildenafil has proved a very effective treatment for male erectile dysfunction. Listing a study does not mean it has been evaluated by the U. To date, most work on the effects of sildenafil on blood pressure have mainly been investigated in single dose studies. Inhibitors of phosphodiesterase type 5 (PDE5), such as sildenafil, relax blood vessels. These have shown that sildenafil causes a modest reduction in blood pressure, even when taken with other blood pressure-lowering drugs, providing reassurance on safety when taken as a single dose for erectile dysfunction. However, these studies do not offer any insight into the potential of PDE5 inhibition in the long-term treatment of hypertension. We will address this question by investigating the effects of regular administration of sildenafil on blood pressure. It may also be postulated that, because of its mechanism of action, sildenafil will also improve the function of the endothelium, the single layer of cells that lines all blood vessels. Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Sildenafil (Revatio) is used to improve the ability to exercise in adults with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness). Children should not usually take sildenafil, but in some cases, a doctor may decide that sildenafil (Revatio) is the best medication to treat a child's condition. Sildenafil is in a class of medications called phosphodiesterase (PDE) inhibitors. Sildenafil treats erectile dysfunction by increasing blood flow to the penis during sexual stimulation. Sildenafil treats PAH by relaxing the blood vessels in the lungs to allow blood to flow easily. If you are taking sildenafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or increase sexual desire. Sildenafil does not prevent pregnancy or the spread of sexually transmitted diseases such as human immunodeficiency virus (HIV).
Sildenafil will be prescribed for you by a specialist doctor. Every time you collect a supply, check that you have been given the same brand of tablets as before. If the appearance is not the same as usual, please speak with your doctor or pharmacist. Do not drink grapefruit juice while you are on sildenafil. The most common side-effects are headache, sickness, flu-like infections, diarrhoea and nosebleeds. Pulmonary arterial hypertension (PAH) is a condition where there is too high a blood pressure in the arteries which supply blood to your lungs from your heart. The arteries become narrowed so your heart has to work harder to pump blood to your lungs. Sildenafil ist ein Arzneistoff aus der Gruppe der PDE-5-Hemmer, einer Gruppe gefäßerweiternder (vasodilatierender) Substanzen. Große Bekanntheit erlangte er als Wirkstoff des 1998 von dem US-amerikanischen Unternehmen Pfizer unter dem Namen Viagra auf den Markt gebrachten Arzneimittels zur Behandlung der erektilen Dysfunktion (Erektionsstörung) beim Mann. Diese Wirkung wurde zufällig im Rahmen der Entwicklung von Sildenafil als Mittel zur Behandlung von Bluthochdruck und Angina pectoris entdeckt. Außer als Potenzmittel ist Sildenafil seit 2006 ferner zur Behandlung der idiopathischen pulmonal-arteriellen Hypertonie und der pulmonalen Hypertonie in Verbindung mit einer Bindegewebskrankheit zugelassen (Markenname Revatio). Sildenafil war der erste Arzneistoff der Wirkstoffklasse der PDE-5-Hemmer. Umgangssprachlich wird der Name Viagra gelegentlich auch als Sammelbegriff für andere Medikamente dieser Wirkstoffgruppe, beispielsweise Tadalafil (Cialis), Vardenafil (Levitra) oder Avanafil (Spedra) verwendet. In Deutschland, Österreich und der Schweiz sind sildenafilhaltige Arzneimittel verschreibungspflichtig.
Madrid, Spain—The prescribing of sildenafil to treat residual hypertension in patients with valvular heart disease should raise a red flag for pharmacists. That warning came from late-breaking results of the SIOVAC trial that were presented at the European Society of Cardiology meeting in Barcelona, Spain. At a Hot Line LBCT Session at the ESC Congress, Hospital General Universitario Gregorio Marañon–led researchers reported that off-label use of the drug led to worse clinical outcomes, including twice the risk of hospitalization, compared with placebo.“Valvular disease is considered the next cardiac epidemic because of its strong association with age and the rapid aging of the population worldwide,” said principal investigator Javier Bermejo, MD, Ph D. “The only established treatment is repair or replacement of the valve surgically or percutaneously. But symptoms often remain or reappear in the long-term. Residual pulmonary hypertension is the most important risk factor for death and disability after successful correction of the valvular lesion.”Increased blood pressure in the pulmonary artery might persist after valve treatment, according to the study, which points out that sildenafil—which usually is used to treat erectile dysfunction—is frequently prescribed off-label in patients with retrograde pulmonary hypertension. Conducted in 17 public hospitals and coordinated by the Spanish Network Centre for Cardiovascular Research (CIBERCV), the SIOVAC trial looked at whether sildenafil can improve long-term outcomes in patients with residual pulmonary hypertension after correction of a valvular lesion. Sildenafil (Revatio) was approved in 2005 based on a 12-week study that showed improvements in six minute walk distance. In the initial study, there was not a clear difference between 20mg three times a day and higher doses. In a subsequent study that followed patients for years, the majority of patients increased their dose to 80mg three times daily and had lasting benefit. In 2012, generic Revatio became available as Sildenafil. Most experts that treat PAH believe that over time patients generally do better on the higher dose (80mg) rather than the 20mg dose. As you would expect, the higher dose has more side effects. In my practice, when I start sildenafil I do so at the 20mg three times daily dose.
Effects of sildenafil citrate. information and current treatment guidelines, sildenafil should be safe in younger and older men with or without hypertension. Sildenafil is a vasodilator that helps blood flow and is used to treat pulmonary hypertension and similar illnesses. Sildenafil tablets are the most common. Patient