Has anyone ever travelled to S. Korea with a legal presribed Viagra?

but if you are traveling in the US, and TSA finds prescription drugs in your possession, they had better be in the bottles that came from the pharmacy, and have everything on the label all legit.

I take a number of prescription meds and I inject myself daily as well (Diabetes). I pack my meds in the kind of week by eek pack otherwise I would carry a huge volume of bottle meds and I carry my diabetic meds with needles in a cold pack with a frozen block to keep it cold. I have been stopped occasionally, most often leaving Britain, because they need to be sure the pack is indeed frozen otherwise it would be a large quantity of liquid that could be a bomb.  Otherwise I have never been bothered. I guess if I were stopped I could write myself a note from a doctor.  You experience was unusual and really could have been dangerous as you point out.  I will call the TSA because this would also affect my patients.  I need to knwo if this was a fluke or policy.
Hope all is well with you my friend.

in the bottles (or other packaging) that the pharmacy issues it in, and TSA just enforces said rules.

There is no federal law requiring meds to be transported by patients in their original containers.  And, no, you don't have to carry your meds in their original bottles and with the prescription to fly on a domestic flight.  It even says so on the TSA website.  You have to go through the kabuki dance with them if you have a "medically-necessary" liquid in excess of 1.4oz.  Recognize that a TSA clerk with perhaps a GED will decide what is "medically necessary."  

It's good to see that the rules are less restrictive now, though I do note that the adviso you graciously posted does note that some states do have (or could have) said restrictions.

Same is true if you're stopped by the police while driving. If your medication isn't in the proper container and you're poor, lower or working class or a minority you're likely to be arrested and go to jail.

So, even with a Penal Code 1203.4 that was granted by the courts. It will be there despite you have succesfully obtained a
1203.4?

A friend of mine was driving back into the country and was stopped at the border. The Border Patrol asked him, "Do you have any drugs or firearms?" My friend replied, "Why? What do you need?"  
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He told me that the prison food wasn't nearly as bad as he thought it would be.
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Ba-dum-dum.

I always put it in a Rx bottle from another Rx..

Reminds me of the young teens whose father comes up to him one day and says:  "Son, I need to speak to you on the topic of sex.", the son says:  "Sure dad, what do you need to know?"

Not to say that it couldn't happen, but travel with it all the time. I keep it in its blister pack, though and not separate pills. I have a lot of meds, never had a problem internationally or domestically. I did get stopped once for carrying equine medicine (about a liquid quart for veterinary purposes). They sniffed it handed them my business card, and was on my way no problem.

I don't need, and rarely use ED meds, but sometimes if I am going on a "fuck fest" I will take a half or a third of a Cialis tab to help with my recovery time, and rather than go through the hassle of getting them here in the US I often just go to one of the airport gift shops and just buy them over the counter to take home with me. I have never had even the slightest issue doing this. I just leave them in the original packaging in the bag I get from the gift shop and I have never, not once ever been questioned about them.

Curious what airports sells the real blue pills? I travel alot as well and have never seen any such type of med at any airport.

Now I am not referring to San Jose CA, or Panama City FL of course. The ones I am talking about are Panama City, Panama and San Jose Costa Rica. Sorry I wasn't more clear. lol

It never fails for me when I leave from the airport by me that they pull my drug bag out. It sits there for 30 minutes, and then they swab it for explosives...or something. But when I go through Miami, they send it right through. I always keep the meds in the original bottle, because I do travel with script narcotics. My doctor even wrote out "a note" on a script pad that I needed to take the opiates. But, I'm not too fond of the idiot TSA agent broadcasting to everybody else about my meds....idiot

I put my daily vitamins and prescription meds in a small plastic container that has separate compartments for each day. I put my sildenafil pills in a little dispenser that used to contain small mints. So I never have any in their original prescription containers. I've traveled to dozens of countries with this setup in my carry-on suitcase and never been stopped or searched.