Hypertension Linezolid should not be given to the following patients unless they are monitored for potential increases in blood pressure: Those taking any of the following: sympathomimetic drugs (eg, pseudoephedrine), vasopressors (eg, epinephrine, norepinephrine), or dopaminergic drugs (eg, dopamine, dobutamine) Those with uncontrolled hypertension Those with thyrotoxicosis Those with a pheochromocytoma Use During Pregnancy and Breastfeeding Animal reproduction studies with linezolid show some risk, and no adequate, well-controlled studies have been done in pregnant women.