It could be colic and related to feeding practice . You avoid bottle feed and feed from a cup or glass anything other than breast milk . Burp gas properly . Colic aid is natural intestinal tonic for colic
MCh - Urology, Visiting Fellow Andrology and Men's Health, Visiting Physician Urology and Andrology, Fellowship in Minimal Access Surgery, Master of Surgery, MBBS, EUREP USI Fellowship
Dear Mr. lybrate-user, the symptoms may reflect, UTI or Bladder Outlet Obstruction. I would strongly recommend alpha blockers to see the effect. A personal visit for examination is also required. Prostate enlargement can cause recurrent infections and this kind of pain.
MBBS, MD - Paediatrics, Indian Fellowship of Pediatric Critical Care Medicine
Daily recommended dose is 400 iu so if 1 ml contains 800 iu then dose will be 0.5 ml 1 ml = 20 drops so 0.5 ml = 10 drops you can give it 0.5 ml = 10 drops once daily dose schedule or you can give it 0.25 ml = 5 drops two times per day schedule.
If baby is breast fed only or getting some cow's milk or formula milk or calcium syrup. You should withhold everything except breast feed. Secondly if stools are not hard, then it's ok with once a week frequency for stools, if baby is breast fed only.
You should always take the prescribed drugs. If nothing abnormal has happened like rash or pain or anything else. Then less chances of side effects. Please continue the syrup as advised and consult a doctor if any adverse reaction. Anything unusual should be noticed.