Tetracycline hydrochloride

Medical and veterinary use, pharmaceutical manufacturing, household disposal, and farm runoff; residues can occur in meat and milk if withdrawal times aren’t followed [3][4].

Taking the medicine; workplace handling (healthcare, pharma, animal feed); drinking water or eating food with residues; improper disposal of unused drugs [2][3][4].

Can cause stomach upset and sun sensitivity; rare but serious liver injury; permanent tooth discoloration and effects on bones in fetuses and young children; antibiotic use drives resistance [1][2][5].

Pregnant people, children under 8, people with liver disease, those with heavy sun exposure, and workers who handle the drug [1][2].

Use only as prescribed; avoid during pregnancy/for young children unless directed by a clinician; protect skin from sun while taking; return unused meds at take‑back programs; choose foods from sources that follow veterinary withdrawal rules; use protective gear at work [2][3][4].