Risk factors for adverse drug reactions

[Vania]

Many factors can increase the likelihood of an adverse drug reaction (any unwanted effects of a drug). They include

Hereditary factors
Certain diseases
Simultaneous use of several drugs
Very young or old age
Pregnancy
Breastfeeding

Hereditary factors make some people more susceptible to the toxic effects of certain drugs.
Certain diseases can alter drug absorption, metabolism, and elimination and the body