Thanks for your query,based on the facts that you have posted it appears that you have what is called as Asthenosprmia meaning there by that the percentage of active motile sperms is 5 %.
Normally as per WHO standards and accepted by infertility
centres world wide the percentage of active grade one sperm required to fertilize female eggs should be 12-15 % .
Truly speaking there are no medications that can increase the sperm motility
however following measure will help you to increase motility of sperms.
1) Practice regular exercise for 45 minutes followed by meditation
for 1/2 an hour in the morning.
2) Take high protein diet rich in vegetables and fruits and Vitamin A
3)Take anti oxidants like Almonds 5-6 everyday..
4) Avoid alcohol and smoking