Hello - we’ve been experiencing intermittent shortages of lidocaine 5% patches and are considering using lidocaine 4% patches as a substitute. I’m hearing that other institutions only use 4% patches in the hospital setting and curious if the 4% patch used the same way as the 5% patch, i.e., up to 3 patches at a time for max duration of 12 hours within a 24-hour period? Or do you follow the Drug Facts label and use just one patch at a time? I’m trying to find information about using multiple 4% patches and haven’t found much, other than a single case report where a 56 year-old male applied 17 lidocaine 4% patches at once for at least 5 hrs and had minimal lidocaine absorption (https://pubmed.ncbi.nlm.nih.gov/39105469/). Thanks for any insights.