Danny knew a drugstore that sold needles without question, where he also got an eyedropper a a baby pacifier. 

He stopped at the Automat to steal a teaspoon, then put down two dollars on a six dollar room where he knew the landlord...
He bolted the door and put his spoon, needle, and dropper on a table by the bed...
He dropped the tablet in the spoon and covered it with a dropperful of water. He held a match under the spoon until the tablet dissolved. He tore a strip of paper, wet it,, and wrapped it around the end of the dropper, fitting the needle over the wet paper to make an airtight connection...
Danny