Nomophobia is a behavioural addiction associated with smartphones, particularly the anxiety that arises when an individual is disconnected from mobile networks or unable to access their device. The study objective was to assess the impact of the information module on knowledge regarding nomophobia and its prevention among undergraduate nursing students. A quantitative research approach was adopted a with a pre-experimental one-group pre-test and post-test design with a sample of 200 undergraduate nursing students using a non-probability purposive sampling technique. A self-structured questionnaire was used to assess the knowledge regarding nomophobia and its prevention. The results revealed that in the pre-test, 192 (96%) participants had obtained a poor grade, 06 (03%) participants an average grade, 02 (01%) a good grade, and none (0%) obtained an excellent grade. In the post-test, none of the participants had obtained a poor grade, 20 (10%) obtained an average grade, 64 (32%) a good grade and 116 (58%) participants had obtained an excellent grade. The intervention was effective in increasing the knowledge of the undergraduate nursing students. A statistically significant association was found between age, marital status and current residence and pre-test knowledge score (p=0.05). Thus, the information module was effective in increasing the knowledge of undergraduate nursing students regarding nomophobia and its prevention.