tranylcypromine improves toxicity of fentanyl transdermal by Other (see remark). Contraindicated. Remark: Keep away from fentanyl in individuals who require concomitant administration MAOIs, or inside of 14 days of halting an MAOI. Intense and unpredictable potentiation by MAO inhibitors continues to be described with opioid analgesics.isavuconazon