SUNVENIZ XL is a brand name for the antidepressant medication venlafaxine, which is commonly prescribed in an extended-release formulation. It belongs to a class of drugs known as serotonin-norepinephrine reuptake inhibitors (SNRIs). By increasing the levels of serotonin and norepinephrine, neurotransmitters that play key roles in mood regulation, SUNVENIZ XL helps to alleviate symptoms of depression, anxiety, and certain other mood disorders. The extended-release form of this medication is designed to allow for once-daily dosing, providing a steady release of the drug into the bloodstream over the course of the day, which can help in maintaining stable drug levels in the body and potentially reduce side effects. Like all medications, it is important to use SUNVENIZ XL under the guidance of a healthcare provider, as it may not be suitable for everyone and could have potential side effects.