RALOXIFENE

                    4-(2-piperidinoethoxy)benzoic acid

                    6-methoxy-2-(4-methoxyphenyl)benzothiophene

RANITIDINE

                    1-methoxy-1-methylamino-2-nitroethylene

RIFAMPICIN

                    1-amino-4-methylpiperazine

RIMANTADINE

                    1-bromo adamantane

                    1-adamantyl methyl ketone

                    1-adamantane carboxulic acid 

RAMIPRIL 

                    (s,s,s)-2-azabicyclo[3,3,0]-octane-carboxylic acid benzylester hcl paroxetine n-methyl paroxetine

                    (-)trans-4r-(4-fluorophenyl)-3s-hydroxymethyl-1-methyl piperdine 

ROSIGLITAZONE (BASE,HCL,MALEATE) 

                    2,4-thiazolidinedione.

                    5-[4-[2-(n-methyl-n-(2-pyridyl)amino)ethoxy]benzylidine]-2,4-thiazolidinedione