Lean/Sizzurp Ingredients, Use, and Coping With Mental Health Symptoms.

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

Who cites it

4 citing papers in PubMed.

1. Promethazine is not a good option to aid sleep quality, especially for people using psychiatric services.BJPsych bulletin · 2025
   Review
2. Oral fentanyl consumption and withdrawal impairs fear extinction learning and enhances basolateral amygdala principal neuron excitatory-inhibitory balance in male and female mice.Addiction neuroscience · 2024
   Article
3. Tailoring opioid use prevention content for juvenile diversion programs with adolescents and their caregivers.Journal of substance use and addiction treatment · 2024
   Article
4. Codeine and promethazine: Exploratory study on "lean" or "sizzurp" using national survey data and an online forum.PloS one · 2024
   Article

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

Authors and funding

1 author.

Funding

No grant is acknowledged in the PubMed record.

Abstract

Indexed as