The Neuroshrink blog recently explored why Viagra and other medications used to treat erectile dysfunction can trigger an episode of transient global amnesia (TGA), “one of the more mysterious and freaky cognitive syndromes one can encounter.”
Long term usage of Viagra has been shown to cause dyspepsia (indigestion) and can lead to stomach upset such as diarrhoea, gastritis, vomiting and abdominal pain. Erectile dysfunction is really common. But thankfully there are plenty of easy treatments that can help.
Results from a small clinical trial suggest that Cialis, an erectile dysfunction drug in the same family of medicines as Viagra, might help prevent vascular dementia by increasing blood flow in the brain.
Moreover, animal studies have shown that sildenafil enhances memory in several models (Prickaerts et al., 2002b; Rutten et al., 2005) and attenuates memory impairment induced by NO synthase (NOS) inhibition (Devan et al., 2006; 2007;).
Commonly reported side effects of sildenafil include headache, skin flushing, indigestion, and visual disturbances [3]. Neuropsychiatric adverse effects, including lightheadedness, depression, anxiety, sleeplessness, abnormal dreams, behavior changes, and nervousness, have also been reported in previous studies [4].
If you take more than the recommended dose of Viagra, you can develop a condition known as priapism, which is an erection that lasts for longer than four hours. Priapism is a medical emergency and can result in serious damage to the delicate structures in your penis, so seek medical attention immediately.
Viagra could cause neurological disturbances
There are studies that point to the role of Viagra in causing neurological disturbances and amnesia. It has been linked to Transient Global Amnesia, a condition in which there is a sudden, temporary loss of memory that is not caused by any neurological conditions.
Commonly reported side effects of sildenafil include headache, skin flushing, indigestion, and visual disturbances [3]. Neuropsychiatric adverse effects, including lightheadedness, depression, anxiety, sleeplessness, abnormal dreams, behavior changes, and nervousness, have also been reported in previous studies [4].
Regardless of your dose or individual metabolism rate, Viagra usually wears off after 4-6 hours. Note that your erection should never last more than four hours. If it does, seek medical treatment.
Dr. Desai led the study that found no evidence that Viagra and Cialis reduced the risk of Alzheimer's or related dementias, and Dr.
Viagra and similar medications work by increasing blood flow to your penis. Although they may become psychologically addictive if misused, there's no evidence that using Viagra can lead to physical dependence or addiction.
Scientists may have discovered a new use for a drug commonly prescribed to treat erectile dysfunction. A study led by experts at the Cleveland Clinic found that taking sildenafil (brand name Viagra) could dramatically reduce a person's risk of developing Alzheimer's disease, though more research is needed.
have a serious heart or liver problem. have recently had a stroke, heart attack or a heart problem – your doctor should carefully check whether your heart can take the additional strain of having sex. have low blood pressure (hypotension) have a rare inherited eye disease, such as retinitis pigmentosa.
Viagra helps to maintain the erection after ejaculation and reduces the refractory time before a second erection can be obtained.
The biggest difference between Viagra and Cialis is the amount of time their effects last. Viagra remains effective for 4 to 6 hours, which offers ample opportunity to have sex on multiple occasions if you wish. However Cialis typically allows you to achieve erections for up to 36 hours after taking a tablet.
However, because Viagra is a vasodilator, it helps open up blood vessels and arteries. You might think that this would actually help to reduce the risk of a heart attack, but, there have been reports of heart attack, stroke, arrhythmia and even death in men taking Viagra.
Viagra can stay in the system for up to 20 hours, but it takes about four to five half-lives for a drug to be fully eliminated. How long it is effective differs from person to person. FDA labeling states that Viagra is effective for up to four hours, but the effect at four hours is much less than at two hours.
A penile erection can normally last anywhere from a few minutes to about half an hour. On average, men have five erections a night while they're sleeping, each lasting about 25 to 35 minutes (Youn, 2017).
Viagra is only recommended to be taken once per day. This means that if you're planning on engaging in sexual activity more than once throughout the day, you shouldn't take a pill every time. And if you take a pill and it doesn't work for you — don't double up and take another one.
Using medication like Viagra recreationally isn't a good idea. In fact, doing so may increase your risk of dealing with side effects and interactions, especially if you use other medications, alcohol or recreational drugs at the same time.
Viagra does not make your penis bigger. No pill does. It can help you get and maintain a firmer erection that lasts longer, though.
The effects of Cialis (tadalafil) last much longer than those for Viagra or Levitra (up to 36 hours) so many men prefer it as involves less planning. The downside is that if you do experience side effects these can last for longer too. Like Levitra, Cialis is not affected much by food, so can be taken after a meal.