Autofill a Search

I have a table full of prescription drugs and they are very hard to spell. What i have is in the customer form a relationship to my prescriptions table already. What i would like it to be able to do is when i type in the first 4 letters of the prescription it then gives me the options that come up with the start of that word. For example

Im looking to add the drug lipitor so my agent types in the letters lipi and i would like for the box to then recommend based on the letters i inputted lipitor and have it fill into the box with the information. 

Then i would like it to show the table of dosages that are available for that drug like 10mg,20mg etc.


How would i do this?

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Benjamin Brooks
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