Psych Central reports:

Two popular antipsychotic medications made by Johnson & Johnson — Risperdal and risperidone — have been recalled due to possible contamination with a chemical used to treat the wood pallets the drug is often transported on.

The drug is from the Johnson & Johnson-owned subsidiary Ortho-McNeil-Janssen Pharmaceuticals.

The recall was prompted by reports from two consumers of an odd odor emanating from their medication. Johnson & Johnson tracked the odor down to trace amounts of TBA (2,4,6 tribromoanisole).

According to Johnson & Johnson, TBA is a byproduct of a chemical preservative sometimes applied to wood often used in the construction of pallets on which materials are transported and stored.

While not considered to be toxic, TBA can generate an offensive odor and a very small number of patients have reported temporary gastrointestinal symptoms when taking other products with this odor.

If you have concerns or questions, call your pharmacist or visit Risperdal.com