British National Formulary (BNF)http://bnf.org/bnf/index.htm
Use the link here to help you check the medications you are being asked in questions to administer. I would suggest that you keep this window open and refer to the BNF as you go along. Please note that you will need to register to user the BNF but this relatively easily and free! Once you are registered if you go to the product section then you can find the medication you wish by using the search facility at the top of the page.