Glyceryl Trinitrate (GTN) Spray
What is GTN?
GTN Spray is commonly used to treat angina, a condition characterised by chest pain or discomfort.
It belongs to the class of drugs known as nitrates.
How Does it Work and Why is it Important to Take?
GTN Spray relaxes and widens blood vessels, especially around the heart. This boosts blood flow to the heart muscle, easing angina symptoms and reducing heart strain.
Taking it as prescribed is vital for symptom relief and better heart blood flow
The Dose of The Medication
Use 1 or 2 sprays under your tongue
You can have a second dose of 1 or 2 sprays under your tongue if they pain still persists after 5 mines of the first dose
How to Take It
Sit down comfortably.
Remove the cap and place your finger on the button.
Prime the spray by spraying it into the air.
Hold the spray in front of you and take a deep breath.
Open your mouth and lift your tongue to the roof.
While holding your breath, press the button to spray.
Close your mouth and breathe in through your nose.
If needed, repeat the steps for another dose.
Remain seated for 5 minutes, then rise slowly when ready."
What to Expect
GTN Spray offers rapid relief from angina symptoms, typically within minutes of use. Its effects are short-lived, lasting around 20 to 30 minutes.
Possible Side Effects
Nausea
Dizziness and weakness
Tired or drowsy
Headaches
Flushing
Management of Side Effects
Click here for common side effects and how to manage them
If you experience severe, persistent or bothersome side effects, contact your GP clinician, local pharmacy or NHS 111
Common Interactions
Inform your clinician about all medications, including over-the-counter and herbal supplements, as they can interact with GTN.
This includes erectile dysfunction drugs like sildenafil, tadalafil, etc.
Avoid over-the-counter ibuprofen or aspirin unless advised by a clinician.
Special Warnings
Call 999 if, five minutes after your second dose, pain persists, worsens, or you feel unwell.
Limit alcohol intake to reduce medication side effects.
Monitoring Your Progress
Your GP clinician may monitor your blood pressure and adjust the treatment plan accordingly
Keep track of your angina symptoms and report any changes to your GP clinician
Where to Find More Information and Who to Contact
Refer to the patient information leaflet and the NHS website for more details.
If you have questions or experience unusual symptoms, contact your GP clinician, local pharmacy, or NHS 111.