H2 blockers, what they are, how they work, what they mean to your child with acid reflux and infants with acid reflux.
Here's how they can help your baby's reflux. They block the messengers that tell the stomach to begin production of acid. These messages or signals. These signals are delivered by the messenger hormones called histamine (type 2). Histamine communicates with the cell by attaching to contact points located on the cell surface called receptors. They work by occupying the receptors so that histamine cannot bind and communicate to the parietal cell to activate it to start producing acid.
Acid is produced by the parietal cells located in the stomach lining. These cells don't secrete acid until they receive the signal from Histamine type 2 to begin production.
The H2 blocker works by occupying the receptors so that histamine cannot bind and communicate to the parietal cell to start producing acid. However; they only block one of three different signals that the parietal cell receives telling it to produce acid, so the signal can still get through.
Some examples of what is available on the market today are:
The human (and baby) body will build a tolerance to H2 blockers. So you will likely notice it’s depleting effectiveness over time. In fact they stop working in about 10 days. This is called tachyphylaxis (or tolerance) So even if the H2 blocker provides some relief initially, the infant often rapidly develops tolerance and becomes ineffective.
Another consideration is that histamine 2 blockers contain alcohol and alcohol is a mucosal irritant.
H2 blockers come in different dosage forms including tablets, capsules, liquids, and effervescent tablets. They are available in over the counter (OTC) and by prescription (RX) form.
This is a suggestion or option and by no means are we instructing you to dose your baby this way. Please do your research and proceed with what you feel comfortable doing for treating your baby’s acid reflux.
Crush a 75mg Zantac® or ranitidine tablet. Mix with 10mL of Mylanta Cherry Supreme or if unavailable you can use any generic brand as long as it doesn’t contain aluminum. Read the ingredients. RiteAid, Walmart, CVS, Target, and other retail chains carry generic brands.
You can dose 1ml up to 5 times a day even if you have a new born.
Please keep an eye out for very loose stools. If indicated you may have to lessen the dose.
Normal recommendations are to take them about one hour before eating. That gives the drug time to be absorbed into the bloodstream and reach the parietal cells before histamine can (which would trigger acid production).
Contraindications are WHAT NOT TO DO
You should not take with any of the following medications:
They only inhibit one stimulus of acid production. For example, H2 won't block production stimulated by the nervous system (stress-induced acid production).
Much of the contents of this page came from the archived version of the Marci-kids website.