Which antibiotic should not be given to children under 8 years due to its effects on bones and teeth?

Doxycycline is the antibiotic that should not be given to children under 8 years due to its potential effects on bones and teeth. This tetracycline antibiotic can bind to calcium ions, which can lead to the formation of complexes that disrupt normal bone growth and can cause permanent discoloration of the teeth. The tetracycline class of antibiotics is known for this adverse effect, which is why guidelines recommend avoiding their use in young children whose developing teeth and bones may be negatively impacted. Consequently, the safety profile of doxycycline in pediatric patients necessitates careful consideration and alternative treatments whenever possible in this age group.