###Human: Is it necessary to take another dose of I-pill if vomited after first dose? ###Assistant: Hello. Usually, it is not necessary to take an additional pill if one vomited after three hours. If just vomited a little then it is not necessary to take an additional pill. Then also confirm whether you had 0.75 mg or 1.5 mg tablet. If it was 1.5 mg then it is not necessary. However, if you have consumed 0.75 mg then it is better to take an additional 0.75 mg after 12 hours. So, overall it is not necessary to take any additional dose, just confirm the above factors for additional surety.