Abstract
Over the past three decades, oral controlled-release dosage forms have been developed due to their therapeutic advantages, such as ease of administration, patient compliance, and flexibility in formulation. However, this approach has faced physiological difficulties, such as the inability to contain and position the controlled drug delivery system within the desired region of the gastrointestinal tract (GIT) due to variable gastric emptying and motility. Venlafaxine is an antidepressant and a serotonin and norepinephrine reuptake inhibitor (SNRI). Its active metabolite, desvenlafaxine, works by blocking the reuptake of serotonin and norepinephrine, which are key neurotransmitters in mood regulation. Gastroretentive dosage forms can stay in the gastric region for several hours and significantly prolong the gastric residence time of drugs. Natural materials have been extensively used in drug delivery because they are readily available, cost-effective, eco-friendly, capable of many chemical modifications, potentially degradable, and compatible due to their natural origin. Keywords: Sustained Release Floating Tablets, Venlafaxine,
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