2013
DOI: 10.1590/s1984-82502013000100002
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A review of analytical methods for the determination of four new phosphodiesterase type 5 inhibitors in biological samples and pharmaceutical preparations

Abstract: The introduction of oral phosphodiesterase type 5 inhibitor therapy in 1998 revolutionized the treatment of erectile dysfunction. Erectile dysfunction is the most common sexual problem in men. It often has a profound effect on intimate relationships and quality of life. The analysis of pharmaceuticals is an important part of the drug development process as well as for routine analysis and quality control of commercial formulations. Whereas the determination of sildenafil citrate, vardenafil and tadalafil are w… Show more

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Cited by 13 publications
(14 citation statements)
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“…Geralmente, o tratamento medicamentoso tem de ser associado ao não-farmacológico logo de início 9 . A primeira linha para tratamento de DE é composta pela mudança dos hábitos de vida, aconselhamento, psicoterapia/terapia sexual e os fármacos inibidores da fosfodiesterase-5 3,66,67 .…”
Section: Tratamento Da Disfunção Erétilunclassified
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“…Geralmente, o tratamento medicamentoso tem de ser associado ao não-farmacológico logo de início 9 . A primeira linha para tratamento de DE é composta pela mudança dos hábitos de vida, aconselhamento, psicoterapia/terapia sexual e os fármacos inibidores da fosfodiesterase-5 3,66,67 .…”
Section: Tratamento Da Disfunção Erétilunclassified
“…Apresenta também, uma seletividade moderada (80 vezes menor) para as PDE-1 (localizadas no músculo liso, rins e cérebro) e uma seletividade ainda maior para as PDE-6, encontradas nas células fotorreceptoras da retina 75 . 66 . O objetivo do estudo foi avaliar a satisfação com o tratamento para DE, a mudança de tratamento e outros fatores associados.…”
Section: -Mecanismo De Açãounclassified
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“…Sildenafil citrate was the first drug approved for the treatment of ED in 1998. The United States food and drug administration (FDA) approved tadalafil and vardenafil hydrochloride in 2003 [2].…”
Section: Introductionmentioning
confidence: 99%
“…There are several studies in medical literature reporting the determination of sildenafil citrate in pharmaceuticals, plasma samples, herbal drugs or dietary supplements using liquid chromatography method [1][2][3][4][5][6][7], electroanalytical methods [8,9]gas chromatography [10], Thin layer chromatography [11], capillary electrophoresis [12] and capillary chromatography [13][14][15]. Many spectrophotometric Methods have also been reported [16][17][18][19][20][21][22].…”
Section: Introductionmentioning
confidence: 99%