Johnson & Johnson is again recalling a prescription drug because of an odd musty odor likely caused by a chemical on shipping pallets, according to the Associated Press. J&J is recalling four lots of its HIV medicine Prezista at the wholesale and pharmacy level in four foreign countries: Austria, Germany, Ireland and the United Kingdom. The company also is discussing with Canadian regulators whether to recall a fifth lot distributed there. Fewer than 2,000 bottles of the pills are believed to still be in the marketplace in those countries. Patients should not stop taking the medication, according to Johnson & Johnson, which will replace any affected bottles. No cases of serious patient harm have been reported, but four consumer reports of the musty, moldy odor led to the recall.