 This review aimed to identify the effectiveness of a text messaging intervention on hypertension management, specifically focusing on the dosage of text messaging and additional interventions with text messaging. The results showed that text messaging significantly reduced systolic blood pressure but not diastolic blood pressure. Text messages delivered at a lower frequency had a small effect on SBP and DBP reduction, and the use of a text messaging intervention have the odds of uncontrolled BP among patients with hypertension in six months. The review suggests that one-way text messaging delivered weekly is effective and requires fewer resources, and future studies should integrate text messaging into other interventions to improve adherence behaviors and blood pressure control among patients with hypertension. This article was authored by Han Lan Tam, Elizamy Ling Wong, Kin Chung, and others.