You can give Mylicon (simethicone) drops as often as every feeding, up to 12 times in a 24-hour period. The label directs parents to give doses after meals and at bedtime, repeating as needed throughout the day. That 12-dose ceiling is the hard limit, so even on a rough day with frequent feedings, keep a mental count.
Dosing Schedule and Timing
The standard approach is to give a dose after each feeding and again at bedtime. Most newborns eat 8 to 12 times a day, so the 12-dose maximum lines up naturally with a typical feeding schedule. You don’t need to space doses a certain number of hours apart. If your baby finishes a bottle at 2 p.m. and is fussy with gas again at 3 p.m. after another feeding, a second dose is fine as long as you stay under 12 for the day.
You can give the drops directly into your baby’s mouth using the included dropper, aiming toward the inner cheek. You can also mix a dose into about 1 ounce of cool water, formula, or breast milk if your baby resists the dropper. Either method works equally well.
How Quickly It Works
Simethicone works by breaking up gas bubbles in the stomach and intestines so they’re easier to pass. Because it acts physically on bubbles rather than being absorbed into the bloodstream, it tends to work within minutes. If your baby doesn’t seem more comfortable after 15 to 20 minutes, the fussiness may not be gas-related. Giving additional doses beyond what’s needed won’t speed things up.
Why It’s Considered Very Safe
Simethicone is not absorbed into your baby’s body. It passes through the digestive tract unchanged and comes out the other end. This is why the safety profile is so forgiving compared to most medications: there’s essentially nothing entering the bloodstream. The drops are safe to use every day for as long as your baby needs them.
Allergic reactions are rare but possible. Watch for skin rash, hives, or swelling of the face, lips, tongue, or throat after giving a dose. If you see any of these, stop using the drops.
One Important Drug Interaction
If your baby takes thyroid medication (levothyroxine), be cautious. The American Academy of Pediatrics flagged a case where an infant’s thyroid levels failed to normalize over several weeks because the parents were also giving simethicone colic drops. The simethicone appeared to interfere with how well the thyroid medication was absorbed. If your baby is on any prescription medication, let your pediatrician know before adding Mylicon to the routine.
Signs the Problem Isn’t Just Gas
Mylicon is meant for ordinary infant gas and the fussiness that comes with it. If you’re giving it regularly and your baby isn’t improving, or if other symptoms appear alongside the discomfort, something else may be going on. A few patterns worth paying attention to:
- Forceful, projectile vomiting right after feeds, especially with poor weight gain, can signal a condition called pyloric stenosis that needs medical evaluation.
- Blood or mucus in the stool alongside pain during feeds and back-arching may point to a milk protein allergy rather than simple gas.
- Sudden episodes of intense crying where your baby pulls their legs to their chest, followed by dark or bloody stools, could indicate a bowel condition called intussusception that requires urgent care.
- Fever, excessive sleepiness, or poor feeding alongside belly pain suggest an infection or another issue that gas drops won’t address.
- Poor weight gain or weight loss combined with ongoing fussiness is a signal that something beyond normal gas is interfering with your baby’s nutrition.
Ordinary gas and colic are uncomfortable but shouldn’t come with any of these red flags. A gassy baby who is otherwise feeding well, gaining weight, and having normal stools is generally just working through the normal challenges of a developing digestive system.