The Web Health



Generic name: tetrahydrozoline ophthalmic [TE-tra-hye-DROZ-oh-leen-off-THAL-mik]

Brand names: Altazine, Optigene 3, Visine, Geneye Extra, Geneyes,… Show all 10 brands
Class of drugs: ophthalmic decongestants and antihistamines

What is Visine?

Tetrahydrozoline acts as a vasoconstrictor. It reduces the redness of the eye by narrowing swollen vessels.

Visine (for eyes) provides temporary relief from minor eye irritations such as minor redness, swelling, or drainage.Visine can be used in other ways not mentioned in this guide.

Side effects of Visine

If you experience any of the following symptoms of an allergic reaction, seek emergency medical attention: hives, difficulty breathing, swelling of the face, lips, or tongue, or swelling in your throat.

Visine can cause serious side effects. If you experience:

  • Eye redness that persists or worsens
  • Eye pain
  • Changes in your vision
  • Chest pain is characterized by a fast or irregular heartbeat.
  • Feeling short of breath, having a severe headache, or buzzing in the ears

Visine can cause the following side effects:

  • Mild burning or stinging in the eyes;
  • Watery eyes, blurred vision,
  • Dilated pupils

There may be other side effects. For medical advice on side effects, call your doctor. The FDA can be contacted at 1-800-FDA-1088 to report side effects.


Visine provides temporary relief from minor irritations or redness of the eyes.If you experience eye redness or pain that persists or worsens, or if your vision changes, stop using Visine immediately and contact your doctor.

Before you take this drug

Visine should not be used if you have an allergy to it.

If you have any other medical conditions or concerns, ask your doctor or pharmacist whether it's safe to take the medicine.

  • Glaucoma;
  • Heart disease, high blood pressure
  • Diabetes;
  • A thyroid disorder,
  • An eye injury or infection.

Visine is not known to harm unborn babies. If you plan to get pregnant or are already pregnant, tell your doctor.There is no way to know if tetrahydrozoline ophthalmic can pass into breast milk or if it will harm a baby who is nursing. You should tell your doctor if you're breastfeeding a child.

How to take Visine?

Do not exceed the recommended dosage or duration. Use the recommended dose and do not exceed it.

If you use the medication for too long or too frequently, it can worsen symptoms and damage the blood vessels in your eyes.Before using eye drops, wash your hands.

How to apply eye drops

  • To create a pocket, tilt your head slightly back and pull your lower eyelid down. The tip of the dropper should be pointing down. Squeeze out a few drops by looking up and away.
  • Close your eyes and gently press the inside corner of your eye for approximately 1 minute to prevent the liquid from draining to your tear duct.
  • Only use the recommended number of drops.

Avoid touching the tip or placing it directly on your eye. If the dropper is contaminated, it can cause serious vision problems.If the liquid is discolored or contains particles, do not use it.Store away from moisture or heat at room temperature. Store away from moisture and heat. When not in use, keep the bottle tightly sealed.

What happens if I miss the dose?

Visine can be used as needed, and you don't need to follow a schedule. If you have a regular schedule, take the missed dose as quickly as you can. If your next scheduled dosage is approaching, skip the missed dose. You should not take extra medicine to compensate for a missed dose.

What happens if I overdose?

Overdoses of tetrahydrozoline are not dangerous. If anyone accidentally swallows the medication, seek emergency medical attention. You can also call Poison Help at 1-800-222-1222.

Visine should be kept out of the reach of children. Some eye drops can cause serious health problems in young children who accidentally swallow or suck on the medicine.

What should be avoided?

Use this medication only when you are not wearing contact lenses. Visine contains a preservative that can discolor soft lenses. Wait 15 minutes after taking this medication before you put it in your contacts.

Interaction with other drug

Tetrahydrozoline in the eye is unlikely to interact with other drugs that you may take orally or by injection. Many drugs interact with each other. Inform your healthcare provider about the medicines you take, including vitamins and herbal remedies.