The worldwide transmission of acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as a deadly or devastating disease is known to affect thousands of people every day, many of them dying all over the planet. The main reason for the massive effect of COVID-19 on society is its unpredictable spread, which does not allow for proper planning or management of this disease. Antibiotics, antivirals, and other prescription drugs, necessary and used in therapy, obviously have side effects (minor or significant) on the affected person, there are still not clear enough studies to elucidate their combined effect in this specific treatment, and existing protocols are sometimes unclear and uncertain. In contrast, it has been found that nutraceuticals, supplements, and various herbs can be effective in reducing the chances of SARS-CoV-2 infection, but also in alleviating COVID-19 symptoms. However, not enough specific details are yet available, and precise scientific studies to validate the approved benefits of natural food additives, probiotics, herbs, and nutraceuticals will need to be standardized according to current regulations. These alternative treatments may not have a direct effect on the virus or reduce the risk of infection with it, but these products certainly stimulate the human immune system so that the body is better prepared to fight the disease. This paper aims at a specialized literary foray precisely in the field of these "cures" that can provide real revelations in the therapy of coronavirus infection.

Bhabha Pharmacy Research Institute Bhabha University Bhopal 462026 India

Chrono Environment CNRS 6249 Université de Franche Comté 25000 Besançon France

Department of Natural Product Chemistry School of Pharmacy Shanghai Jiao Tong University Shanghai 200240 China

Department of Pharmaceutical Sciences Batterjee Medical College P O Box 6231 Jedah 21442 Saudi Arabia

Department of Pharmacology Chitkara College of Pharmacy Chitkara University Punjab 140401 India

Department of Pharmacy Faculty of Medicine and Pharmacy University of Oradea 410028 Oradea Romania

Department of Pharmacy Jagannath University Sadarghat Dhaka 1100 Bangladesh

Department of Pharmacy Southeast University Banani Dhaka 1213 Bangladesh

Doctoral School of Biological and Biomedical Sciences University of Oradea 410087 Oradea Romania

Faculty of Physical Culture Palacký University Olomouc 77111 Olomouc Czech Republic

Integro Global Ltd Dhaka 1206 Bangladesh

Pharmacology Department Faculty of Veterinary Medicine Suez Canal University Ismailia 41522 Egypt

Practice of Medicine Department Government Homeopathic Medical College Bhopal 462003 India

PRISAL Foundation Pharmaceutical Royal International Society Bhopal 462042 India

School of Chemistry and Chemical Engineering Hubei University Hubei 430062 China

Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of Pharmacy Shanghai Jiao Tong University Shanghai 200240 China

Techno India NJR Institute of Technology Udaipur 313003 India

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