I searched on merck, crossfire, googled, utfsed and found nothing on the meclizine HCl (in dramamine) .

Could some body tell me in which solvents it is Soluble, its percentage in tha solvent n in which solvent it is INSOLUBLE .

..took aprox. 10 sec to find on google.

Meclizine hydrochloride: Insoluble in water, Insoluble in ether, Very soluble in chloroform, pyridine,and acid-alcohol-water mixture; slightly soluble in dilute acids and alcohol.

You might want to have a look at these first.

http://www.erowid.org/experiences/exp.php?ID=9434

http://www.erowid.org/experiences/exp.php?ID=1204