Tag: Delayed side effects

While iron infusions are generally safe and effective, up to one-third of patients may experience delayed, flu-like symptoms 2–5 days after treatment. Understanding the full spectrum of what are the delayed side effects of iron infusion is crucial for patient management and anxiety reduction.

Anaphylaxis, a severe allergic reaction, can occur within seconds of medication exposure. However, the answer to **how long do drug side effects take to start?** is complex, as timing can range from minutes to years, depending on the drug and individual patient factors.