GTN Sublingual Spray – Glyceryl Trinitrate Information

Description

Glyceryl trinitrate (GTN), also called nitroglycerin, is a nitrate medicine used for angina. GTN spray is used under the tongue; it is not glycerol (glycerin), a skincare ingredient or a constipation treatment.

Product information

Medicine	Glyceryl trinitrate / GTN / nitroglycerin
Form	Sublingual spray, used under the tongue
Pack and strength	Check the supplied pack and patient leaflet for the brand, strength and number of metered doses. Ask the pharmacy to confirm these before supply.

How to use

Use only as directed by your clinician and the leaflet for the actual product supplied. Do not choose a dose yourself or inhale a sublingual spray as if it were an asthma inhaler. Ask the pharmacist to explain priming and administration for your pack.

Important safety information

Do not combine GTN with PDE5 inhibitors such as sildenafil, tadalafil or vardenafil: blood pressure can fall dangerously. Tell the pharmacist about all other medicines and supplements.
Discuss low blood pressure, heart conditions, allergies, pregnancy, breastfeeding or use for a child with a healthcare professional before use. Read the full contraindications in the supplied leaflet.
Headache, dizziness and flushing may occur. Do not drive or use machinery if dizzy or faint.
Keep out of children's sight and reach. Follow the pack's storage directions and keep the spray away from flames and smoking.

Call 999 for sudden chest pain that does not go away, pain spreading to the arms, neck, jaw, stomach or back, or chest pain with sweating, sickness, light-headedness or breathlessness. Do not delay emergency care while seeking an online supply.