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Prepaid Expenses (Tables)
3 Months Ended
Mar. 31, 2021
Notes to Financial Statements  
Prepaid Expenses

Prepaid expenses consist of the following:

 

    March 31,   December 31,
    2021   2020
Prepaid insurance   $ -     $ 54,180  
Prepaid stock options for services     87,001       86,999  
Prepaid professional fees     65,000       65,000  
Prepaid research and development expense     289,746       289,746  
Other prepaid costs     20,424       70,350  
Total prepaid expenses   $ 462,171     $ 566,275