The aim of the study was to compare the in vitro performance of different
acyclovir tablets of the same strength from different companies under different trade
names: Acyclovir actavis 400mg tab ,Acic 400mg tab ,and Veramide 400mg tab.,
and compare with pure acyclovir.
The comparison include friability, thickness, and hardness as non official tests, and
dissolution and weight variation as official tests. Dissolution test is the most
important test in which we can determine the real amount of active ingredient
(acyclovir) found in each tablet formulation in addition to the rate of drug release
from these formulation .
The results reveals that no significant changes observed in thickness, hardness
,and Friability ,all the formulation were found within the limits.
The dissolution rate exerts significant differences after 5min, 51.9% of veramide,
76.4% of acyclovir activs, and acic 58.3% in comparison with 88.5% of acyclovir .
After 10 min, only the percentage released from acic.( 75.72% ) was significantly
differ from reference drug acyclovir 94.5% .While the results of this study showed
a significant differences of percentage released after 20 min from veramide
,acyclovir actavis ,and acic are (95.7, 97.2,and 99.1 respectively) in comparison
with acyclovir(99.5%). Amount of drug that released after40 min ,the percentage of
drug released from all test tablets not significantly differ from that released from
acyclovir100%..
Conclusion an attempt was made to compare three acyclovir different forms
Acyclovi actavis , Acic ,and Veramide and compare the dissolution rate with
standard acyclovir .The results showed a significant decrease in dissolution rate
after 5 ,and20 min ,only acic exert a significant reduction after 10 min. All tablets
released active ingredient in non significant manner after 40 min . further in vivo
studies showed be done to reveal how such results affect the pharmacokinetic of
mentioned drugs.