Can I take Amitriptyline and Buspirone together?
Drug interaction guide
Originally published 14 Mar 2026
Meets Patient’s editorial guidelines
- DownloadDownload
- Share
- Language
- Discussion
- Audio Version
Taking amitriptyline and buspirone together can increase the risk of a rare but serious condition called serotonin syndrome. It can also make you feel much more drowsy or dizzy than usual.
In this article:
Continue reading below
Why this happens
Both medicines increase the levels of a chemical called serotonin in your brain. If these levels get too high, it can cause 'serotonin syndrome'. Additionally, both drugs have a calming effect on the central nervous system, which can lead to increased sleepiness when combined.
What you should do
Back to contentsYou should only take these two medicines together if they have been specifically prescribed by your doctor. If you are taking both, watch out for symptoms like extreme shivering, sweating, a very fast heartbeat, muscle stiffness, or confusion. If you notice these, seek medical help immediately. Avoid driving or using machinery until you know how this combination affects you.
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

Treatment and medication
Can I take 7.5mg and Medikinet together?
Taking Zopiclone and Medikinet (methylphenidate) together can cause a 'tug-of-war' effect in your body. Medikinet is a stimulant designed to wake you up and help you focus, while Zopiclone is a sedative designed to make you sleepy. Taking them at the same time can make both medicines less effective. Additionally, while Medikinet is active, it may be harder for you to fall asleep, even after taking Zopiclone. In some cases, mixing stimulants and sedatives can lead to unpredictable effects on your coordination, heart rate, or mental state (such as feeling confused or agitated).

Treatment and medication
Can I take 150 and Zigduo together?
Taking aspirin (75mg to 150mg) with Xigduo (which contains dapagliflozin and metformin) can increase the risk of your blood sugar dropping too low (hypoglycaemia). It may also increase the risk of a rare but serious condition called lactic acidosis, where too much acid builds up in your blood.
Article history
The information on this page is written and peer reviewed by qualified clinicians.
14 Mar 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.