Name a key side effect that should be monitored when prescribing venlafaxine.

When prescribing venlafaxine, it is crucial to monitor for elevated blood pressure as a key side effect. Venlafaxine is a serotonin-norepinephrine reuptake inhibitor (SNRI) that can cause dose-dependent increases in blood pressure. This effect is particularly notable at higher doses, and it occurs due to the drug’s ability to increase norepinephrine levels, which can lead to an increase in vascular resistance and, consequently, an elevation in blood pressure.

Regular monitoring of blood pressure is important, especially when patients are on higher doses or have pre-existing hypertension. Adjustments in medication or additional antihypertensive treatment may be necessary to manage this side effect effectively. Recognizing signs of elevated blood pressure early allows for timely intervention, improving patient safety while on venlafaxine therapy.