Primary study · included by 1 review

A randomized double-blind, placebo-controlled trial of zinc sulfate supplementation for alleviation of radiation-induced oral mucositis and pharyngitis in head and neck cancer patients.

Sangthawan 2013 · Sangthawan Duangjai, Phungrassami Temsak, Sinkitjarurnchai Wattana · Journal of the Medical Association of Thailand = Chotmaihet thangphaet · 2013

Included by

The Route of Administration Determines the Efficacy of Zinc in Preventing Radiation-Induced Oral Mucositis: A Systematic Review and Meta-Analysis.

Non-Cochrane · intervention · 2026 · cited as Sangthawan 2013 · Table 1; Figure 3; references 20-24

Outcome this study informs	Pooled effect	Evidence	Certainty
Severe (Grade 3-4) radiation-induced oral mucositis Systemic (oral) zinc supplementation vs Placebo, standard care or no treatment · During radiotherapy	RR 0.52 [0.27, 1.01]	3 studies · 268 participants	Low

1 including review in total.