COVID-19: TOPICAL Theophylline for Loss of Taste and Smell Post-Infection

In the aftermath of COVID-19 infections, many patients experience the loss of taste (hypogeusia) or smell (hyposmia). In some cases, the loss of taste or smell can last months or even longer term. Theophylline is a drug used for respiratory diseases such as asthma and emphysema. There have been studies recently to see if it can help to improve hyposmia …