How Food Can Affect Rozerem (Ramelteon)
In our latest Q&A, the pharmacist discusses if Ramelteon should be taken with a high-fat meal and its impact on effectiveness.
So, I was prescribed Ramelteon 8 mg tablets by my psychiatrist, and on my pill bottle, it says to “take 1 tablet by mouth every night at bedtime with a high-fat meal.” However, every other source, like the medication guide from the pharmacy and various medical sites that explain the drug, all say not to take it with a meal because it won’t work as well. I’ve tried Lunesta before, and it worked better without a meal as well. So, I’m just wondering, will I be okay if I don’t eat with it, or is that just my psychiatrist's personal recommendation? Thanks in advance!
Sep 05, 2024- Rozerem should not be taken with or immediately after a high-fat meal because it may slow down how quickly the medication works and reduce how fast you fall asleep.
- Taking Rozerem with a high-fat meal can delay when the medication reaches its peak level in your blood by about 45 minutes.
- If your prescription bottle has different instructions, talk to your doctor or pharmacist since there may be a specific reason for your individual dosing directions.
Answer
Thank you for your great question.
According to the FDA prescribing information for Ramelteon, it is recommended to not take the medication with or immediately after a high-fat meal. Doing so may reduce the medication's effectiveness.
Specifically, the prescribing information for the drug (label (fda.gov)) states the following:
Effect of Food: When administered with a high-fat meal, the AUC0-inf for a single 16 mg dose of ROZEREM was 31% higher, and the Cmax was 22% lower than when given in a fasted state. The median Tmax was delayed by approximately 45 minutes when ROZEREM was administered with food. The effects of food on the AUC values for M-II were similar. It is therefore recommended that ROZEREM not be taken with or immediately after a high-fat meal [see Dosage and Administration (2.1)].
To help explain the above excerpt:
- AUC (Area Under the Curve) measures the total exposure of the body to the medication over time, while Cmax represents the maximum concentration of the drug in the blood after taking a dose.
- A higher AUC indicates that the body is exposed to the drug for a longer period, while a lower Cmax suggests that the peak concentration of the drug is reduced.
- Both of these factors can affect how quickly and effectively the medication works.
In practical terms, for someone taking Rozerem, this means that taking the medication with a high-fat meal could lead to a longer duration of drug exposure but with a lower peak concentration. The main concern with taking it with or immediately after a high-fat meal is that it would slow absorption, which may reduce its effect on sleep latency (i.e., you may not fall asleep as quickly).
I can't speak to why the instructions on your bottle state to take it with a high-fat meal.
It's possible those instructions came from your healthcare provider and were, therefore, included on the pharmacy bottle. There may be a specific reason your provider wants you to take it that way, but I can't be certain.
All I can say for sure is that, in general, the drug is not recommended to be taken with a high-fat meal. You should consult your doctor or pharmacist about it for more personalized advice and better insight as to why your prescription directions are the way they are.
Final Words
I hope this was helpful!
Thanks again for reaching out.
References & sources
- Rozerem Prescribing Information — AccessFDA
Glossary — Terms in This Answer
- AUC (Area Under the Curve)
- A measurement of the total amount of medication in your bloodstream over a period of time after taking a dose.
- Cmax
- The highest concentration or peak level of a drug in your blood after taking a dose.
- Tmax
- The time it takes after taking a medication for it to reach its maximum concentration in the blood.
- Fasted state
- A condition of having an empty stomach with no food or recent meals.
- Absorption
- The process by which a medication passes from your digestive system into your bloodstream.
- Sleep latency
- The amount of time it takes from when you try to fall asleep until you actually fall asleep.
- Prescribing information
- The official FDA-approved document that describes how a medication should be used, including dosage and warnings.
Dr. Brian Staiger, PharmD
Doctor of Pharmacy, board certified clinical pharmacist (BCPS), American Herbalist Guild, Medication Therapy Management certified
Brian Staiger, PharmD, BCPS, is a licensed pharmacist with more than 13 years of experience across retail pharmacy, clinical pharmacy, medication safety, pharmacy program development, and healthcare administration. He is the founder of HelloPharmacist.com, where he helps patients...
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