Predawn Versus Preiftar Timing of Levothyroxine Administration During Ramadan Intermittent Fasting: A Multicenter Randomized Controlled Trial | Synapse
March 3, 2026Open Access
Predawn Versus Preiftar Timing of Levothyroxine Administration During Ramadan Intermittent Fasting: A Multicenter Randomized Controlled Trial
Key Points
Thyroid stability is maintained whether levothyroxine is taken at predawn or preiftar.
Both timing options are safe for patients, allowing for personal preference in administration.
The trial involved a multicenter randomized controlled design to compare the two regimens.
Results support the flexibility of levothyroxine administration during Ramadan's fasting periods.
Abstract
Both preiftar and predawn LT4 regimens maintained thyroid stability during Ramadan. Either can be safely adopted according to patient preference.