Do not use APO-DESVENLAFAXINE if: allergic (hypersensitive) to desvenlafaxine, venlafaxine or any of the other ingredients in APO-DESVENLAFAXINE; taking or have taken, within the last 14 days, another medicine known as monoamine oxidase inhibitor (MAOI) including linezolid, an antibiotic, and methylene blue, a dye used in certain surgeries; taking other drugs that contain venlafaxine or desvenlafaxine; taking any prescription or non-prescription medicines, including nutritional or herbal supplements, without checking with the doctor first (see Precautions and Interactions).
Taking a MAOI together with many prescription medicines, including APO-DESVENLAFAXINE, can cause serious or even life-threatening side effects. Also, wait at least 7 days after taking APO-DESVENLAFAXINE is stopped before taking any MAOI. (See Interactions.)