Vaccinations for Covid-19 are now underway in the U.S. Two vaccines – one from Pfizer and BioNTech, one from Moderna — have received emergency use authorizations by the Food and Drug Administration.

Cyclobenzaprine is a generic prescription oral tablet used to treat muscle spasms. It does not come in any brand-name versions. Cyclobenzaprine can cause mild to serious side effects, including ...