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You may bring all needed prescription drugs with you on your flight. This includes liquids. gels and aerosol medications. Some specific types of prescription medications you may need to bring include eye drops, saline solution and petroleum jelly.
The Transportation Safety Administration does not limit the number of prescription drugs that you bring on board with you in your carry-on baggage; however those who bring liquid medicines that are not in bottles of three ounces or less or are not in a one-quart plastic bag must declare to one of the TSA security officers at a checkpoint that they have prescription medication in their luggage. The prescribed medication is subject to being inspected before it may clear security.
When possible, the traveler who brings prescribed medication on a flight should have documentation she can show to TSA employees to help explain why the medication is necessary. Although it is not absolutely required that the name on a prescription matches the name on a passenger's ticket, if these two names do not match, the traveler should be prepared to explain why.
99.9% of the time, on domestic flights, they don't care or check to see any documentation. They know that people travel with prescriptions all the time, and it would take a very long time to check everyone's documentation when it's not necessary.
As far as preboarding, that's up to each individual crew (not even the airlines). But most of the time, especially if you ask for additional time, they'll allow it.
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