Close icon


Brimonidine Tartrate
Sourced from United Kingdom
Prescription Required
Alphagan P
Brimonidine Tartrate
Sourced from Canada
Prescription Required
Generic Equivalents what's the difference?
Brimonidine (Generic)
Brimonidine Tartrate
Sourced from Canada
Prescription Required
Brimonidine (Generic)
Brimonidine Tartrate
Sourced from United Kingdom
Prescription Required

Brimonidine/Brimonidine P Ophthalmic (Alphagan, Alphagan P)

Brimonidine ophthalmic (for the eyes) is used to reduce pressure inside the eyes in people with open-angle glaucoma or ocular hypertension. The Alphagan P brand of this medicine is available only with a prescription.

Brimonidine ophthalmic may also be used for purposes not listed in this medication guide.

Possible Side Effects Of Brimonidine Ophthalmic (Alphagan, Alphagan P)

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using this medicine and call your doctor at once if you have:

  • eye pain or increased watering;
  • vision changes; or
  • severe swelling, redness, burning, or discomfort in or around your eye.

Common side effects may include:

  • mild itching, redness, burning, or other irritation of your eyes;
  • dry mouth, blurred vision; or
  • drowsiness, tiredness.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

Important Information About Brimonidine Ophthalmic (Alphagan, Alphagan P)

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

You should not use brimonidine ophthalmic if you are allergic to it.

Tell your doctor if you have ever had:

  • heart problems, circulation problems;
  • coronary artery disease (clogged arteries);
  • low blood pressure;
  • depression; or
  • Raynaud’s syndrome, Buerger disease.

Tell your doctor if you are pregnant or breast-feeding.

How To Use Brimonidine Ophthalmic (Alphagan, Alphagan P)

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.

If you wear contact lenses, use the drops at least 10 minutes before inserting your lenses.

Wash your hands before using the eye drops.

Use only the number of drops your doctor has prescribed.

Do not touch the tip of the eye dropper or place it directly on your eye. A contaminated dropper can infect your eye, which could lead to serious vision problems.

Wait at least 5 minutes before using any other eye drops your doctor has prescribed.

If you are using this medicine to treat eye redness or irritation, call your doctor if your symptoms do not improve after 3 days.

Do not use the eye drops if the liquid looks cloudy, has changed colors, or has particles in it. Call your pharmacist for new medicine.

Store at room temperature away from moisture and heat. Do not freeze. Keep the bottle tightly closed when not in use.

Tell your doctor right away if you have any eye injury or infection, or if you need to have any type of surgery, especially eye surgery.

If You Miss A Dose

Use the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not use two doses at one time.

If You Overdose

An overdose of brimonidine ophthalmic is not expected to be dangerous. Seek emergency medical attention if anyone has accidentally swallowed the medication.

What To Avoid While Using Brimonidine Ophthalmic (Alphagan, Alphagan P)

Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.

Do not use other eye medications unless your doctor tells you to.

Drugs That Affect Brimonidine Ophthalmic (Alphagan, Alphagan P)

Using brimonidine ophthalmic with other drugs that make you drowsy can worsen this effect. Ask your doctor before using opioid medication, a sleeping pill, a muscle relaxer, or medicine for anxiety or seizures.

Tell your doctor about all your other medicines, especially:

  • an antidepressant; or
  • heart or blood pressure medication.

This list is not complete. Other drugs may affect brimonidine ophthalmic, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.


If you have any questions about buying discount Brimonidine, Brimonidine P (Alphagan, Alphagan P) or any other prescription products online, you can contact our team of professional Patient Service Representatives or one of our pharmacists by calling 1-833-313-3173.

Notice: The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Place An Order

Ready to place an order? Click the button below to SEE how you can order your prescription.

Order Now