DDInter1666 DDInter649
In eliciting its mechanism of action, sildenafil ultimately prevents or minimizes the breakdown of cyclic guanosine monophosphate (cGMP) by inhibiting cGMP specific phosphodiesterase type 5 (PDE5) [F3850, F3853, F3856, F3859, F3883, F3886, L5611, L5614]. The result of doing so allows cGMP present in both the penis and pulmonary vasculature to elicit smooth muscle relaxation and vasodilation that subsequently facilitates relief in pulmonary arterial hypertension and the increased flow of blood into the spongy erectile tissue of the penis that consequently allows it to grow in size and become erect and rigid [F3850, F3853, F3856, F3859, F3883, F3886, L5611, L5614]. Interestingly enough, it is precisely via this mechanism why sildenafil was at first researched as a potential treatment
Enzalutamide is an androgen receptor (AR) inhibitor for the treatment of castration-resistant prostate cancer (CRPC), both metastatic and non-metastatic. It is a second-generation antiandrogen agent that the FDA approved on August 31, 2012.[L40639, A252667] Although androgen deprivation therapy (ADT) is the first-line treatment of prostate cancer and remission can be achieved, arising resistance is inevitable, becoming castration-resistant prostate cancer. Until recently, docetaxel is the only treatment available for metastatic CRPC; however, AR inhibitors have been developed for more targeted therapy, although first-generation AR inhibitors like bicalutamide did not substantially increase the survival rate. Second-generation such as enzalutamide is more efficacious due to a higher affinity to AR and no partial agonist activity compared to bicalutamide.[A252667,A252642] Due to a favorable pharmacological profile, a phase 1 study of enzalutamide was initiated in July 2007. Compared to the average time of 10 to 15 years for a drug to go from pre-clinical to clinical studies, enzalutamide was developed relatively rapidly.
Sildenafil {u} (Compound) binds {v} (Gene) CYP3A4
CYP3A4 {u} (Gene) is bound by {v} (Compound) Enzalutamide
Sildenafil {u} (Compound) causes {v} (Side Effect) Musculoskeletal pain
Musculoskeletal pain {u} (Side Effect) is caused by {v} (Compound) Enzalutamide
Sildenafil {u} (Compound) resembles {v} (Compound) Vardenafil
Vardenafil {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Enzalutamide
Sildenafil {u} (Compound) binds {v} (Gene) CYP3A4
CYP3A4 {u} (Gene) is bound by {v} (Compound) Bicalutamide
Bicalutamide {u} (Compound) resembles {v} (Compound) Enzalutamide
Sildenafil {u} (Compound) binds {v} (Gene) CYP2C9
CYP2C9 {u} (Gene) is bound by {v} (Compound) Nilutamide
Nilutamide {u} (Compound) resembles {v} (Compound) Enzalutamide
Sildenafil {u} (Compound) binds {v} (Gene) CYP3A5
CYP3A5 {u} (Gene) is bound by {v} (Compound) Eplerenone
Eplerenone {u} may cause a minor interaction that can limit clinical effects when taken with {v} Enzalutamide
Sildenafil {u} (Compound) causes {v} (Side Effect) Musculoskeletal pain
Musculoskeletal pain {u} (Side Effect) is caused by {v} (Compound) Eplerenone
Eplerenone {u} may cause a minor interaction that can limit clinical effects when taken with {v} Enzalutamide
Sildenafil {u} (Compound) causes {v} (Side Effect) Pruritus
Pruritus {u} (Side Effect) is caused by {v} (Compound) Nilutamide
Nilutamide {u} (Compound) resembles {v} (Compound) Enzalutamide
Sildenafil {u} (Compound) causes {v} (Side Effect) Injury
Injury {u} (Side Effect) is caused by {v} (Compound) Nefazodone
Nefazodone {u} may cause a moderate interaction that could exacerbate diseases when taken with {v} Enzalutamide
Sildenafil {u} (Compound) causes {v} (Side Effect) Unspecified disorder of skin and subcutaneous tissue
Unspecified disorder of skin and subcutaneous tissue {u} (Side Effect) is caused by {v} (Compound) Bicalutamide
Bicalutamide {u} (Compound) resembles {v} (Compound) Enzalutamide
Sildenafil (Compound) binds CYP3A4 (Gene) and CYP3A4 (Gene) is bound by Enzalutamide (Compound)
Sildenafil (Compound) causes Musculoskeletal pain (Side Effect) and Musculoskeletal pain (Side Effect) is caused by Enzalutamide (Compound)
Sildenafil (Compound) resembles Vardenafil (Compound) and Vardenafil may cause a moderate interaction that could exacerbate diseases when taken with Enzalutamide
Sildenafil (Compound) binds CYP3A4 (Gene) and CYP3A4 (Gene) is bound by Bicalutamide (Compound) and Bicalutamide (Compound) resembles Enzalutamide (Compound)
Sildenafil (Compound) binds CYP2C9 (Gene) and CYP2C9 (Gene) is bound by Nilutamide (Compound) and Nilutamide (Compound) resembles Enzalutamide (Compound)
Sildenafil (Compound) binds CYP3A5 (Gene) and CYP3A5 (Gene) is bound by Eplerenone (Compound) and Eplerenone may cause a minor interaction that can limit clinical effects when taken with Enzalutamide
Sildenafil (Compound) causes Musculoskeletal pain (Side Effect) and Musculoskeletal pain (Side Effect) is caused by Eplerenone (Compound) and Eplerenone may cause a minor interaction that can limit clinical effects when taken with Enzalutamide
Sildenafil (Compound) causes Pruritus (Side Effect) and Pruritus (Side Effect) is caused by Nilutamide (Compound) and Nilutamide (Compound) resembles Enzalutamide (Compound)
Sildenafil (Compound) causes Injury (Side Effect) and Injury (Side Effect) is caused by Nefazodone (Compound) and Nefazodone may cause a moderate interaction that could exacerbate diseases when taken with Enzalutamide
Sildenafil (Compound) causes Unspecified disorder of skin and subcutaneous tissue (Side Effect) and Unspecified disorder of skin and subcutaneous tissue (Side Effect) is caused by Bicalutamide (Compound) and Bicalutamide (Compound) resembles Enzalutamide (Compound)