When guinea pigs were given a specific drug called ractopamine every day for a week, the drug stayed in their lungs much longer than in other organs—even 30 days later—like it got stuck there and took its time leaving.

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Evidence from Studies

Supporting (1)

8

Community contributions welcome

8

Comparison of ractopamine residue depletion from internal tissues

Cohort Study

Animal

2013 Feb

The study gave guinea pigs ractopamine for a week and then checked how long it stayed in their bodies. It found that the drug lingered much longer in the lungs than in the liver, muscles, or kidneys, which matches exactly what the claim says.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Comparison of ractopamine residue depletion from internal tissues

Score: 8

DOI: 10.3109/08923973.2012.702115

Similar Assertions

When guinea pigs were given a specific drug called ractopamine for a week, traces of it stayed in their lungs for a whole month—even after they stopped taking it. This is way longer than scientists usually expect the drug to stick around in the body.

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92%

When guinea pigs were given a specific drug called ractopamine every day for a week, the drug stayed longest and in the highest amount in their lungs the day after they stopped taking it—much more than in their muscles, which had almost none.

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84%

When farmers stop giving pigs a drug called ractopamine, the leftover traces in the meat disappear quickly—so fast that by the time the pig is slaughtered, there’s hardly any left, and it’s under the safety limits set by regulators.

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70%