THE FIBRINOLYTIC ALTERATION ASSOCIATED WITH DAILY ADMINISTRATION OF SILDENAFIL

  • Fathelrahman M Hassan Department of Clinical Laboratory Science, College of Applied Medical Science, Immam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.

Abstract

Objective: The objective of this study was to determine the fibrinolytic alteration associated with daily administration of sildenafil.

Methods: A total of 12 adult male rabbits without mortality rate had been fed standard and subdivided into four groups; their average weight was 1.5, 2.5, 1.9, and 2 kg randomly selected during the period of March 2012–July 2013. Depending on weight, the control groups (2.25 mg/1.5 kg day) and sildenafil groups (3 mg/2 kg/day, 2.85 mg/1.9 kg/day, and 1.7 mg/2.5 kg/day) were injected by normal saline and sildenafil concentration, respectively to create four groups, every group was composed of three rabbits; saline rabbit (control group, n=3) and sildenafil rabbits (sildenafil group, n=9). All rabbit’s plasma samples have been investigated for prothrombin time, activated partial thromboplastin time, fibrinogen, plasminogen activator inhibitor-1 (PAI-1), prothrombin fragment 1+2, tissues plasminogen activator (tPA), plasmin antiplasmin (PAP), plasminogen, and D-dimer after 24 h of administration.

Results: The PAP level was significantly (p<0.05) decreased following sildenafil injection. Sildenafil-injected (3 mg/ml) rabbits had decreased the means of PAI-1 and mean tPA, as early as 1-day post-injection, with a considerable lower PAP first determined 3 days after injection that continued into each rabbit 2 and 3.

Conclusion: Better strategies are to initiate and manipulate this drug ought to reduce the chance of each thrombosis and hemorrhage, at the same time as minimizing the need for laboratory monitoring with the aid of the use of PAI-1, tPA, and PAP checks.

Keywords: Fibrinolytic, Alteration, Administration, Sildenafil.

References

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Hassan, F. M. “THE FIBRINOLYTIC ALTERATION ASSOCIATED WITH DAILY ADMINISTRATION OF SILDENAFIL”. Asian Journal of Pharmaceutical and Clinical Research, Vol. 11, no. 8, Aug. 2018, pp. 107-9, doi:10.22159/ajpcr.2018.v11i8.23144.
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