As many as seven parents have lodged complaints, but the actual number of children who received expired medicine remains unclear. Several children at a health centre in Puthucode, Keralam, allegedly received expired paracetamol syrup, prompting complaints from parents and an investigation by health officials. KRISHNAGIRI: While administering pentavalent vaccines to 1.5 to 3.5-month-old babies at Anchetti Upgraded Primary Health Centre, mothers from Thomsanapalli, Siddhandapuram and Thimmenatti alleged.