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Table 1 Disallowed medication during the trial period

From: A study protocol for a double-blind randomised placebo-controlled trial evaluating the efficacy of carrageenan nasal and throat spray for COVID-19 prophylaxis—ICE-COVID

Disallowed co-medication

Antihistamines

Decongestants

Antitussives

Combination cold products

Antivirals

Oral or nasal steroids

All nasal sprays

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Trials

ISSN: 1745-6215