Side effects are Undesirable effects of a drug, vaccination or treatment that may occur in addition to the desired main effect.
- You can harmless and temporary (e.g. headaches, tiredness, mild skin reactions).
- Some side effects are more serious (e.g. severe allergic reactions, organ damage).
- Whether and which side effects occur depends on:
- the Type of medicine or active substance,
- the Dose,
- individual factors such as age, previous illnesses or other medications taken at the same time.
