Viagra is a medication that is used to help treat men suffering from erectile dysfunction or ED. Viagra is a brand name for a generic form called Sildenafil. Viagra is a prescription drug that is prescribed by a licensed physician. Viagra works by increasing and individual's blood flow in the penis so that the penis will fill with blood and create and keep an erection hard enough to have sexual intercourse. Viagra only works when an individual is sexually stimulated. If there is no sexual stimulation, no erection will occur. It has been shown that it may take up to four hours before sexual activity.

How to use Cialis?

Viagra, or sildenafil, is prescribed to be taken when needed, typically 30 minutes to an hour before partaking in sexual activity. It is recommended that individuals do not take Viagra more than once per day. The medication should be stored properly, being stored at room temperature and away from temperature moisture and heat, and should not be stored in the bathroom. 

What are side effects of Viagra?

There are numerous side effects of Viagra, both common and uncommon. Approximately 15% of individuals taking Viagra will experience side effects. The most common side effects of Viagra include headache, flushing or reddening of the skin, upset stomach, stuffy or runny nose, back pain, muscle pain, nausea, or abnormal vision such as changes in color vision and blurred vision. Some uncommon and more severe side effects include heart attack, stroke, irregular heartbeat, and death have happened before from taking Viagra. It is recommended that men with heart problems should talk with a doctor before taking Viagra. IT is also recommended that individuals allergic to its ingredients or if taking another nitrate medication should avoid taking Viagra or Sildenafil.

Is Cialis a great alternative for Viagra?

There are other medications that have been shown to help treat erectile dysfunction, such as Cialis, or generic drug called tadalafil. Both Viagra and Cialis are phosphodiesterase-5 (PDE5) inhibitors that are used to treat impotence, or erectile dysfunction. Cialis has been shown to provide the ability to obtain an erection for a longer period of time compared to Viagra, with Cialis lasting up to 18 hours while Viagra only lasts for about 4 to 6.

How to buy Viagra online in Australia?

Both Viagra in Australia and Cialis can be purchased at a general pharmacy store with a prescription from a licensed physician. Viagra and Cialis can also be purchased online at stores such as lemonaidheath.com. A website called findviagra.com can slo help find cheaper generic Viagra, or sildenaphil, online. Viagra is described as a small, blue, diamond-shaped tablet with the inscription of VGR 50, VGR 25, and VGR 100 with the numbers being the content of active ingredient in milligrams in the medication. So, medication can be purchased at doses of 25, 50, and 100 mg. Other doses include 120mg, 130mg, 150mg, and 200mg. 

Normal erektil funktion

Normal seksuel funktion hos mænd involverer flere diskrete komponenter: libido, indlede og fastholde erektion, orgasme, ejakulation og refraktær periode. Penis er en vaskulær orgel, der eksisterer i et kontinuum fra slap til den erigerede position. Erektil dysfunktion er en tilstand, der opstår, når erektion tilstrækkelig til vaginal penetration ikke kan opnås ved normale fysiologiske midlerViagra er den bedste løsning for at stoppe denne sygdom. Den seneste udvikling inden for grundforskning samt klinisk forskning har ført til en bedre forståelse af de fysiologiske mekanismer, der regulerer den erektile funktion af penis. Anatomisk undersøgelser har afgrænset det veno-okklusiv mekanisme af korporal organer, der er den kritiske mekanisme begrænse blod udvandringen fra penis. Analyse af legemlige væv og anvendelse af dyremodeller har yderligere belyst de mekanismer, der regulerer legemlige glatte muskeltonus.

Billed. Penis erektil funktion

Erektion er en neurovaskulær begivenhed der opstår, når blodtilførslen til penis
overstiger flow ud af penis. Succesfuld erektioner afhænger præcis graduering af neurale stier samt penis vaskulær integritet. En lempelse af trabekulær glat muskulatur resulterer i øget blodgennemstrømning til corpora cavernosa, hvilket fører til sinusformet lood flyde til penis, er kontrolleret af det autonome erektion centrum, kilden til parasympatisk (S2-S4) og sympatiske (T12-L2) input til i bækken plexus, samt hule nerver innerverer de trabekulær glatte muskulatur. Neural stimulering sendes via Nervi erigentes (dvs. bækken autonome fibre), som frigiver tre vigtige neurotransmittere:

  1. noradrenalin (sympatiske fibre);
  2. acetylcholin (ACh, parasympatisk);
  3. nitrogenoxid (NO; nonadrenergic-non-kolinerge).

Høje niveauer af NO i trabekulær glatte muskulatur resultater i afslapning. Spredning af NO gennem den glatte muskulatur membranen fører til aktivering af guanylatcyklase, der producerer cyklisk guanosinmonophosphat (cGMP). En biokemisk kaskade resultater i ændret calcium og kalium-ion-kanal gennemtrængelighed, en reduktion i cytosol calcium fører til relaksation af den glatte og øget blodgennemstrømning

httpv://www.youtube.com/watch?v=XyvdOLi3XnI

Video (Spørgsmål og svar) om erektil problemer


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