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Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [4] [8] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon. [9]
Sildenafil’s ability to increase blood flow makes the medication useful for managing other conditions. Some sources suggest Viagra might make you last longer in bed, and others say it’s good ...
The Adult Asthma Quality of Life Questionnaire (AQLQ) was developed at McMaster University in Ontario, Canada and was published in 1992. [15] It has since been used as a comparison tool [16] as well as a tool in clinical trials. [17] [18] The Asthma Life Impact Scale (ALIS) measure was developed in 2010 by Galen Research. [19]
Sildenafil is most commonly prescribed to be taken one time per day in doses between 25 and 100 mg for ED. Your healthcare provider will determine the best dosage for you based on a number of factors.
Chemical structure of sildenafil (Viagra), the prototypical PDE5 inhibitor. A phosphodiesterase type 5 inhibitor (PDE5 inhibitor) is a vasodilating drug that works by blocking the degradative action of cGMP-specific phosphodiesterase type 5 (PDE5) on cyclic GMP in the smooth muscle cells lining the blood vessels supplying various tissues.
Viagra’s main ingredient sildenafil is part of a class of drugs referred to as PDE5 inhibitors, which (unlike non-prescription supplements) are approved by the FDA for the treatment of ED.
The Patient Health Questionnaire 2 item (PHQ-2) is an ultra-brief screening instrument containing the first two questions from the PHQ-9. [ 8 ] : 3 Two screening questions to assess the presence of a depressed mood and a loss of interest or pleasure in routine activities , and a positive response to either question indicates further testing is ...
Sildenafil citrate (the active ingredient in Viagra) isn’t linked to physical addiction, meaning you won’t develop a physical dependence on it or develop withdrawal symptoms if you stop using ...