Protect · Harm map
Know what can go wrong—and when to act
Three things matter: how well the product was made, how it gets into your body, such as a shot or a pill, and whether a clinician checks on you afterward.
Injection raises the stakes
An unknown injection can carry added risk because it passes some of the body’s defences against germs and toxins.
So ask where it was made, check that the label names a licensed pharmacy, and ask how to store it, for example whether it needs a fridge. Anything injected must be sterile, meaning free of living germs.
Made-to-order quality can vary
When a pharmacy mixes a medicine badly, germs or other unwanted matter can get into it. The mix can also hold too much or too little of the active ingredient, the part that does the work.
A state pharmacy licence is the first check. Some made-to-order medicines come instead from an outsourcing facility, a larger plant that makes batches for clinics. As of September 2026, such a plant chooses to register with the FDA and must follow factory quality rules, but registration is not FDA approval of what it makes.
Get urgent help for fast, severe changes
A severe allergic reaction can start within seconds or minutes. A swollen face or tongue, struggling to breathe, fainting, or loss of consciousness calls for emergency help; call 911.
Sepsis is the body’s extreme response to an infection and is a medical emergency. Signs can include confusion, clammy skin, severe discomfort, fever or feeling very cold, a weak pulse, or shortness of breath.