What Is a 'Pre-Med'?

What Is a Pre-Med?

Pre-med is short for pre-medication. It refers to medicine given to a patient before they receive an anaesthetic. The aim is to prepare the body and mind for the procedure ahead.

In the past, pre-meds were often given by injection. Today, most are taken as tablets or a liquid, which is easier for patients and staff alike. The timing varies depending on the drug used, but you will typically take a pre-med around one to two hours before your operation.

Not everyone needs a pre-med. Your anaesthetist will assess whether one would be helpful based on your medical history, the type of surgery planned, and how you are feeling about the procedure. If they think it would benefit you, they will explain what they recommend and why.

Why Are Pre-Meds Given?

Pre-meds serve several purposes, and your anaesthetist may suggest one for a range of reasons.

The most common use is to reduce anxiety. Many people feel nervous before surgery, which is entirely normal. A sedative pre-med can help you feel calmer and more relaxed as you are taken to the operating theatre. This can make the whole experience less distressing.

Pre-meds can also help with other aspects of anaesthesia. Some are given to reduce the risk of nausea and vomiting after surgery. Others help to dry secretions in the mouth and airways, making it easier for the anaesthetist to manage your breathing during the procedure. In certain cases, a pre-med may be used to reduce stomach acid, which lowers the risk of complications if any stomach contents reach the lungs.

Pain relief can also begin before surgery. Some pre-meds include mild painkillers that start working early, helping to manage discomfort once the main anaesthetic wears off.

Your situation may be slightly different. ask a question below ↓ and our editorial team will reply with our advice.

Pre-Meds for Children and Anxious Patients

Children often find the prospect of an operation frightening. Younger children in particular may struggle to understand what is happening, which can make the experience more upsetting for them and their parents. A sedative pre-med can help a child feel drowsy and less aware of their surroundings, easing the transition into the anaesthetic room.

Liquid pre-meds are commonly used for children because they are easier to take. The medical team will explain how and when to give the medicine, and will usually allow a parent or carer to stay with the child until the anaesthetic takes effect.

Adults can be just as anxious about surgery. If you feel particularly worried, let your anaesthetist know during your pre-operative assessment. They can discuss whether a pre-med might help and answer any questions you have. There is no need to feel embarrassed about asking for support.

What to Expect

If you are given a pre-med, you may start to feel drowsy, relaxed, or a little light-headed. This is normal and means the medicine is working. You should not drive or operate machinery after taking a sedative pre-med, and you will need someone to accompany you home after your surgery.

Staff will monitor you while you wait for your operation. If you have any concerns or feel unwell after taking the pre-med, let a member of the team know straight away.

Some people experience a dry mouth as a side effect, particularly with certain types of pre-med. Drinking may be restricted before surgery, but staff can offer other ways to keep your mouth comfortable if needed.

Not all patients will be offered a pre-med. The decision depends on individual circumstances and the type of anaesthesia planned. If you feel strongly that you would benefit from one, raise this during your pre-operative appointment. The anaesthetic team will take your preferences into account when planning your care.

For more general information about anaesthesia and what to expect before surgery, the Royal College of Anaesthetists provides patient resources on their website. Your hospital's pre-assessment team can also answer specific questions about your procedure.