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What are Alphagen P drops?

Alphagen P drops, also known by its generic name Brimonidine, is a medication used to treat open-angle glaucoma or high fluid pressure in the eye. Open-angle glaucoma occurs when the eye’s drainage canals become clogged, which increases pressure on the eye and damage to the optic nerve occurs.

How do the drops work?

This medication lowers the pressure of the eye by allowing better fluid drainage in the eye. It also reduces the amount of fluid formed in the eye.

  • Wash your hands first and do not let the dropper tip touch any surface other than your eye.
  • Remove contact lenses before using this medication and wait at least 15 minutes after application before putting in your contact lens.
  • Tilt your head back, look up and pull down the lower eyelid.
  • Hold the dropper over the eye and insert one drop, usually three times a day, or as directed by your doctor.
  • Then look down and close your eyes for 1 to 2 minutes.
  • Place one finger at the corner of your eye and apply light pressure.
  • Do not blink or rub your eye, so the medication will not drain out.
  • Do not rinse the dropper and replace the dropper cap after use.


If you are using another kind of eye medication, wait at least 5 minutes before applying another medication to the eye. It is also important to continue using Brimonidine if you don’t have any symptoms. This medication must be used regularly in order to benefit from it. Use the drops at the same time every day.

This drug is not recommended for children under 2 years old because this drug can cause an increased risk of slowed breathing, which can be deadly.

Side Effects

Some common side effects of Brimonidine drops include:

  • Eye discomfort, itching, redness
  • Blurred vision
  • Dizziness
  • Dry mouth
  • Bad taste in the mouth

If the following side effects occur, contact your doctor:

  • Fast/pounding heartbeats
  • Persistent headache
  • Eye pain/burning/swelling
  • Extreme sensitivity to light
  • Vision changes


What do I tell my doctor before using these drops?

Tell your doctor if you have a medical history of blood vessel diseases, blood circulation disorders, depression, severe heart disease, kidney disease, and liver disease.

Can I drink alcohol while taking these drops?

This drug may make you dizzy, drowsy, or blur your vision. Alcohol or marijuana can make you more dizzy or drowsy. Do not drive or use heavy machinery until you know you can do it safely. Talk to your doctor if you consume cannabis or drink regularly.

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A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

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