NTG

Abbreviation with 2 meanings

NTG
Stands forNitroglycerin
Meanings2
CategoriesMedical

NTG has two meanings. It stands for Nitroglycerin (drug) or Normal-tension glaucoma (ophthalmology & ENT).

Meanings of NTG at a glance

#NTG stands forContext
1NitroglycerinMedical › Drug
2Normal-tension glaucomaMedical › Ophthalmology & ENT

1. Nitroglycerin

Medical · Drug Abbreviations

Nitrate vasodilator used to relieve angina and treat acute heart failure and high blood pressure emergencies. It is given as sublingual tablets or spray, ointment, patches or continuous IV infusion.

Example: NTG 0.4 mg SL x 1 given, chest pain 7/10 to 2/10.

Nitroglycerin was first made as an explosive by Ascanio Sobrero in 1847, and its medical use for angina was described in 1879. Combined with PDE5 inhibitors such as sildenafil or tadalafil it can cause severe hypotension, so it is withheld for 24 to 48 hours after those drugs. Sublingual tablets lose potency once the bottle is opened and should be replaced regularly.

2. Normal-tension glaucoma

Medical · Ophthalmology & ENT Abbreviations

Form of open-angle glaucoma in which optic nerve damage and visual field loss occur even though eye pressure stays in the normal range. Lowering pressure further still slows progression.

Example: NTG with disc hemorrhage OS, IOP 15; target 30 percent reduction, start SLT.

The Collaborative Normal-Tension Glaucoma Study (1998) showed that a 30 percent pressure reduction slowed progression. NTG is particularly common in Japan and among people of East Asian ancestry. Low blood pressure at night and migraine may be risk factors. In cardiology NTG means nitroglycerin.

More drug abbreviations

  • NE – Norepinephrine
  • Neo – Neo-Synephrine (phenylephrine)
  • nitro – Nitroglycerin
  • NPH – Neutral protamine Hagedorn (isophane insulin)
  • NTX – Naltrexone
  • NVP – Nevirapine
  • ORS – Oral rehydration solution
  • OXC – Oxcarbazepine

See all 170 drug abbreviations →

More ophthalmology & ENT abbreviations

  • NIHL – Noise-induced hearing loss
  • NLP – No light perception
  • NPC – Nasopharyngeal carcinoma
  • NPDR – Nonproliferative diabetic retinopathy
  • OAE – Otoacoustic emissions
  • OCT – Optical coherence tomography
  • OE – Otitis externa
  • OM – Otitis media

See all 74 ophthalmology & ENT abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.