Is there ever a time to consider IM
Vitamin B12 injection : For maximum bioavailability, especially in cases of severe deficiency or malabsorption, intramuscular injections of vitamin B12 offer direct absorption and are often prescribed to rapidly restore adequate levels
the former gives you the option of getting or skipping the caffeine, while the latter is always caffeine-free
N/A Reconstitution, storage, and handling
In some embodiments, the formulations or compositions described herein are liquids and are administered via narrow gauge needles or cannulas (e.g., 22 gauge needle, 25 gauge needle, or cannula), minimizing damage to the tympanic membrane upon administration