Unauthorized drugs may also: lead to infections, allergic reactions, and other serious complications contain too much, too little, or none of the active ingredient contain unlisted, dangerous or unknown ingredients contain contaminants, such as solvents, heavy metals, particles (fibers, glass, plastic), or microbials (bacteria, fungi, endotoxins) be poorly or incorrectly labelled be improperly manufactured or stored interact with other medications or health products you may be taking.
Wang, T
The two are sometimes researched together, which is why a combined format is offered
On a U-100 syringe, each unit is 0.01 mL, so each unit contains 25 mcg