What is intravenous sedation?

What is Intravenous (IV) Sedation?

Intravenous (IV) sedation is a technique in which a sedative drug (Midazolam or Hypnovel) is delivered directly into a vein, usually in the arm. It produces a relaxed state, allowing treatment to be carried out more comfortably.

How will it affect me?

• You will feel very relaxed, sleepy, and content.

• You are not unconscious and can respond when spoken to, but most patients doze.

• You do not feel drunk or disinhibited; it is akin to light sleep or sleep talking.

Will the treatment hurt?

• Local anaesthetic is administered after your IV sedation to ensure there is no pain from the procedure.

• Because you are relaxed, you may barely notice the local anaesthetic being given, and discomfort is minimal.

Will I know what is happening?

• One effect of the sedative is amnesia, which can block most or all memory of the procedure.

• Time may feel compressed — an hour can seem like just a few minutes.

• Most patients remember little, if anything, and often feel as though they have been asleep.

Are there any side effects?

• The major side effect is a slower breathing rate, caused by deep relaxation.

• During the procedure, your nurse will monitor oxygen levels and heart rate using a fingertip monitor.

• Supplemental oxygen can be delivered via a nasal cannula.

• If your breathing slows too much, you will be asked to take deep breaths before treatment resumes.

Is IV sedation safe?

• IV sedation is very safe due to the drugs used and our monitoring systems.

• In the unlikely event of complications, the sedative effects can be reversed with another drug kept on standby.

• It is safer than general anaesthetic for many procedures, and allergies to these drugs are extremely rare.

• Our team is experienced in IV sedation, performing it 4–8 times per day, with dedicated registered nurses supporting you from admission until discharge.

• The NZ Dental Council, NZ Dental Association, and NZ Society for Sedation in Dentistry provide guidelines that we strictly follow, and all staff undergo continual training in patient management during sedation.