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Testosterone Replacement, Low T, HCG, & Beyond
When Testosterone Is Not Enough
Bioequivalence and Bioavailability of an ODT of Sildenafil Citrate
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<blockquote data-quote="madman" data-source="post: 179390" data-attributes="member: 13851"><p><span style="font-size: 26px"><strong>Bioequivalence and Bioavailability of an Orodispersible Tablet of Sildenafil Citrate in Healthy Chinese Male Subjects</strong></span></p><p></p><p></p><p></p><p></p><p><span style="font-size: 22px"><strong>Abstract</strong></span></p><p></p><p><em><strong><span style="color: rgb(184, 49, 47)">Sildenafil citrate is approved to treat erectile dysfunction. An orally disintegrating tablet (ODT) of sildenafil citrate that does not require swallowing or administration with fluids has been developed.</span></strong></em> <span style="color: rgb(44, 130, 201)"><em><strong>The bioequivalence and bioavailability of sildenafil citrate ODT (50 mg) without and with water were compared with conventional sildenafil citrate tablets (50 mg) in an open-label, randomized crossover study.</strong></em></span> Healthy Chinese male subjects (n = 36) were allocated to 1 of 6 sildenafil citrate treatment sequences under fasted conditions, and plasma samples for determination of sildenafil concentrations were collected predose through 14 hours postdose. Bioequivalence was demonstrated for sildenafil citrate ODT administered without water relative to the sildenafil citrate tablet administered with water; 90%CIs for the ratios of adjusted geometric means for sildenafil AUClast , Cmax , and AUCinf (ratio, 101.41%; 90%CI, 95.49%-107.70%; ratio, 93.55%; 90%CI, 84.15%-104.00%; and ratio, 101.03%; 90%CI, 94.80%-107.66%; respectively) were wholly contained within the bioequivalence acceptance range of 80% to 125%, indicating bioequivalence criteria were met. Relative bioavailability of sildenafil citrate ODT administered with water to the sildenafil citrate tablet (50 mg) administered with water was 97.10%, 91.43%, and 97.09% with respect to sildenafil AUClast , Cmax , and AUCinf , respectively (90%CI, 91.43%-03.12%, 82.25%-101.65%, and 90.90%-103.71%, respectively). <span style="color: rgb(0, 0, 0)">Both sildenafil citrate formulations were generally well tolerated in healthy Chinese men. Sildenafil citrate ODT administered without or with water was bioequivalent to or met bioequivalence criteria compared with conventional sildenafil citrate tablets administered with water under fasted conditions in healthy Chinese men, thus offering a convenient alternative method of oral administration.</span></p><p></p><p></p><p></p><p></p><p></p><p></p><p><span style="font-size: 22px"><strong>Conclusions</strong></span></p><p></p><p><span style="color: rgb(184, 49, 47)"><em><strong>As a 50‐mg dose, sildenafil citrate ODT taken either without or with water is bioequivalent to or meets bioequivalence criteria compared with the commercial sildenafil citrate film‐coated tablet taken with water, thus offering a convenient alternative method of oral administration.</strong></em></span> <em><strong><span style="color: rgb(44, 130, 201)">Both formulations were safe and generally well-tolerated in healthy Chinese men.</span></strong></em></p></blockquote><p></p>
[QUOTE="madman, post: 179390, member: 13851"] [SIZE=26px][B]Bioequivalence and Bioavailability of an Orodispersible Tablet of Sildenafil Citrate in Healthy Chinese Male Subjects[/B][/SIZE] [SIZE=22px][B]Abstract[/B][/SIZE] [I][B][COLOR=rgb(184, 49, 47)]Sildenafil citrate is approved to treat erectile dysfunction. An orally disintegrating tablet (ODT) of sildenafil citrate that does not require swallowing or administration with fluids has been developed.[/COLOR][/B][/I] [COLOR=rgb(44, 130, 201)][I][B]The bioequivalence and bioavailability of sildenafil citrate ODT (50 mg) without and with water were compared with conventional sildenafil citrate tablets (50 mg) in an open-label, randomized crossover study.[/B][/I][/COLOR] Healthy Chinese male subjects (n = 36) were allocated to 1 of 6 sildenafil citrate treatment sequences under fasted conditions, and plasma samples for determination of sildenafil concentrations were collected predose through 14 hours postdose. Bioequivalence was demonstrated for sildenafil citrate ODT administered without water relative to the sildenafil citrate tablet administered with water; 90%CIs for the ratios of adjusted geometric means for sildenafil AUClast , Cmax , and AUCinf (ratio, 101.41%; 90%CI, 95.49%-107.70%; ratio, 93.55%; 90%CI, 84.15%-104.00%; and ratio, 101.03%; 90%CI, 94.80%-107.66%; respectively) were wholly contained within the bioequivalence acceptance range of 80% to 125%, indicating bioequivalence criteria were met. Relative bioavailability of sildenafil citrate ODT administered with water to the sildenafil citrate tablet (50 mg) administered with water was 97.10%, 91.43%, and 97.09% with respect to sildenafil AUClast , Cmax , and AUCinf , respectively (90%CI, 91.43%-03.12%, 82.25%-101.65%, and 90.90%-103.71%, respectively). [COLOR=rgb(0, 0, 0)]Both sildenafil citrate formulations were generally well tolerated in healthy Chinese men. Sildenafil citrate ODT administered without or with water was bioequivalent to or met bioequivalence criteria compared with conventional sildenafil citrate tablets administered with water under fasted conditions in healthy Chinese men, thus offering a convenient alternative method of oral administration.[/COLOR] [SIZE=22px][B]Conclusions[/B][/SIZE] [COLOR=rgb(184, 49, 47)][I][B]As a 50‐mg dose, sildenafil citrate ODT taken either without or with water is bioequivalent to or meets bioequivalence criteria compared with the commercial sildenafil citrate film‐coated tablet taken with water, thus offering a convenient alternative method of oral administration.[/B][/I][/COLOR] [I][B][COLOR=rgb(44, 130, 201)]Both formulations were safe and generally well-tolerated in healthy Chinese men.[/COLOR][/B][/I] [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
When Testosterone Is Not Enough
Bioequivalence and Bioavailability of an ODT of Sildenafil Citrate
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