Side effects are mainly gastrointestinal and photosensitive allergic reactions common to the tetracycline antibiotics group. It can also damage calcium-rich organs, such as teeth and bones, although this is very rare. It sometimes causes nasal cavities to erode; quite commonly, the BNF suggests, because of this, tetracyclines should not be used to treat pregnant or lactating women and children under 12 except in certain conditions where it has been approved by a specialist because there are no obvious substitutes. Candidiasis (thrush) is not uncommon following treatment with broad-spectrum antibiotics.
Oxytetracycline
Chlortetracycline
Doxycycline
Eravacycline
Sarecycline
Tetracycline
Streptomycin
Minocycline