Meclizine is an antihistamine commonly used to alleviate symptoms associated with motion sickness, such as nausea, vomiting, and dizziness. It also helps manage vertigo, a sensation of spinning or dizziness often linked to inner ear conditions like Meniere’s disease. Meclizine works by blocking certain signals in the brain that contribute to these uncomfortable sensations.
Understanding Meclizine and Its Forms
Meclizine is available in both chewable and non-chewable oral tablet forms, with common dosages ranging from 12.5 mg to 50 mg. Chewable tablets must be thoroughly chewed or crushed before swallowing. Non-chewable tablets are swallowed whole. Some tablets have a “score” or indentation line across the middle, indicating they are designed to be broken into smaller, equal doses. Unscored tablets lack this line and are not intended for division.
The Practice of Pill Splitting
Splitting pills can achieve a lower dosage, make a tablet easier to swallow, or potentially reduce medication costs. However, only certain tablets are suitable for splitting, specifically those that are “scored.” A scored tablet has a line that allows for a more even break. Even with a score, achieving perfectly equal halves can be challenging, with some split halves deviating by more than 10% from the expected weight.
Use a commercial pill splitter for better accuracy. Split pills one at a time, just before taking the dose, rather than splitting an entire prescription at once. This practice helps maintain the medication’s stability, as exposing the inner contents to air, heat, or humidity can affect its potency. Always consult with a healthcare professional before attempting to split any medication.
When Splitting is Not Recommended and What to Do Instead
Many tablets should not be split. Extended-release, sustained-release, or long-acting formulations (ER, SR, LA, XL, or XR) are designed to release medication gradually. Splitting these can disrupt their controlled release, leading to a sudden, excessive drug release and dangerous side effects. Enteric-coated tablets also pose a risk when split, as their protective coating, designed to prevent stomach acid degradation, can be compromised.
Unscored, unusually shaped, or very small tablets are not suitable for splitting, as achieving an accurate and consistent dose is difficult. If a tablet crumbles easily when attempting to split it, it should not be divided. Individuals with impaired vision, dexterity issues, or memory problems may also find it challenging to split pills, increasing the risk of incorrect dosing.
If a different meclizine dosage is needed, or if swallowing difficulties arise, consult a healthcare professional. They can prescribe a different strength or suggest alternative formulations, such as liquid forms. Pharmacists can also provide guidance on whether a specific tablet can be safely split and on proper techniques.