The 27-year-old took to Twitter on Thursday night to clarify what he meant earlier in the week when he issued angry tweets - and then elaborated on SEN radio - regarding his early morning visitors.
"I would like to apologise for any misunderstanding that was created on Wednesday morning by my comments on Twitter about the random drug testing procedures," he said on Thursday.
"I'm fully supportive of the drug testing program and understand that while it's inconvenient for players on occasions, it’s a critical part of the AFL drugs policy."
Swan revealed this week he had been tested three times in the past week - twice while on the Arizona training camp and then at 6am on Wednesday morning.
It was after the third test he took to the social media site to express his dissatisfaction.
"Stop sending out drug testers at 6am. It's starting to piss me off. What's wrong with the afternoon? You can't catch me anyway. Too clever," he tweeted.
Then he told SEN he had no problem providing samples as part of the AFL and ASADA's anti-doping code - which was expanded last year to include testing for EPO and CERA, and the human growth hormone - just not first thing in the day.
"It came as a surprise to me too that they knocked on my door again. It's three times in the last week or something," he told the radio station on Wednesday morning.
"Clearly they think I'm taking steroids.
"I don't mind getting drug tested. I don't have a problem with it but I don't know what the difference is between six o'clock and say nine o'clock.
"If they want to keep sending them out at six o'clock, I might have to move house."
AFL general manager of football operations Adrian Anderson said the timing of the tests was a routine part of the "blood profiling" program that had between 20 to 30 players - considered as the game's highest achievers - involved.
"Players have got an obligation to comply with testing in that regard so I can understand why it's not great to be woken up early in the morning and particularly three in a row," he said on Wednesday.
"The reason why they do it in a row is because they compile blood profiles on players; that's the cutting edge blood testing technique, to compile profiles so you're comparing a player against his own norm rather than against a broader average.
"It's not great being woken up in the morning but the integrity of the competition is just so important, and the way we let ASADA guide us in terms of when they believe is the appropriate time and how to do that testing, and we ask the players to be understanding in that regard.
"We do understand it can be inconvenient but it's fundamentally important that we can do it to protect the integrity of the competition."
