Can I take Pregabalin and Sedoxil together?
Drug interaction guide
Originally published 25 Jan 2026
Meets Patient’s editorial guidelines
- DownloadDownload
- Share
- Language
- Discussion
- Audio Version
Taking pregabalin and Sedoxil (mexazolam) together can significantly increase the risk of severe drowsiness, dizziness, and breathing difficulties. You may feel extremely sleepy, confused, or unsteady on your feet, which increases the risk of falls and accidents. In serious cases, it can lead to slowed or shallow breathing.
In this article:
Video picks for Drug interactions
Continue reading below
Why this happens
Both medications are central nervous system (CNS) depressants. They work by slowing down brain activity in different ways. When taken together, their effects add up (a synergistic effect), leading to much stronger sedation than either drug would cause on its own.
What you should do
Back to contentsYou should only take these two medicines together if they have been specifically prescribed by the same doctor who is aware of both prescriptions. Avoid driving, operating heavy machinery, or performing tasks that require alertness until you know how this combination affects you. Do not drink alcohol while taking these medications. If you experience extreme sleepiness or difficulty breathing, seek medical help immediately.
Continue reading below
Important precautions
Back to contentsSevere respiratory depression and sedation
Both medicines cause central nervous system depression. Taking them together, or with alcohol or opioids, significantly increases the risk of life-threatening breathing difficulties, extreme sleepiness, and coma.
Mental health disorders
Pregabalin can cause suicidal thoughts or an urge to self-harm. You must seek medical help immediately if your mood changes or you have thoughts of hurting yourself.
Pregnancy
Pregabalin use during the first three months of pregnancy may increase the risk of birth defects. Effective contraception must be used during treatment.
Drug dependence and withdrawal
Pregabalin carries a risk of dependence and addiction. Do not stop taking it suddenly, as this can cause severe withdrawal symptoms such as seizures or anxiety.
Sedoxil is a benzodiazepine and can lead to physical and psychological dependence even at therapeutic doses. Do not stop taking it suddenly, as this can cause severe withdrawal symptoms including seizures and hallucinations.
Food and drink warnings
Back to contentsAlcohol
It is best to avoid or strictly limit alcohol while taking these medicines. Both pregabalin and Sedoxil cause drowsiness and dizziness; alcohol significantly increases these effects, which can lead to dangerous levels of sedation, breathing difficulties, and loss of coordination. Combining alcohol with these medicines also increases the risk of liver damage.
Grapefruit juice
Avoid drinking grapefruit juice or eating grapefruit while taking Sedoxil. Grapefruit contains compounds that interfere with how your body breaks down this medicine, which can lead to higher levels of the drug in your blood and increase the risk of side effects like extreme sleepiness.
Caffeine (Coffee, Tea, Energy Drinks)
Limit your intake of caffeine. Caffeine is a stimulant that can counteract the calming effects of Sedoxil and pregabalin, potentially making your treatment less effective for anxiety or sleep issues.
Continue reading below
Using other medicines
Back to contentsTaking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Disclaimer
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
Patient picks for Drug interactions
%20together%3F/og.png)
Treatment and medication
Can I take Atorvastatin and Rybelsus (semaglutide) together?
There is no known direct interaction between atorvastatin and Rybelsus (semaglutide). Both medications are often prescribed together to manage cardiovascular risk and blood sugar levels in patients with type 2 diabetes.

Treatment and medication
Can I take Colecalciferol and Ezetimibe together?
There is no known significant interaction between colecalciferol (Vitamin D3) and ezetimibe. Taking these two medications together is generally considered safe.
Continue reading below
Article history
The information on this page is written and peer reviewed by qualified clinicians.
25 Jan 2026 | Originally published

Ask, share, connect.
Browse discussions, ask questions, and share experiences across hundreds of health topics.

Feeling unwell?
Assess your symptoms online for free
Sign up to the Patient newsletter
Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.
By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.