Manufacturer: Allergan
Pharmaceutical name: Brimonidine
Pack: 1 bottle (5 ml (0.2 %))
Alphagan eye drops contain Brimonidine as the active ingredient, which falls under a class of medications known as alpha agonists. It operates by activating the alpha receptors located on the blood vessels in the eye.
The intraocular pressure is normally regulated by a steady flow of aqueous humour, a liquid that circulates within the eye. This aqueous humour is generated by the ciliary body, a specific part of the eye, and drains via channels known as the trabecular meshwork. In cases such as glaucoma, if the drainage of aqueous humour is obstructed, it accumulates within the eye, leading to elevated pressure. This increased pressure must be alleviated to prevent damage to the optic nerve and possible vision impairment.
Brimonidine activates the alpha receptors located on the blood vessels supplying the ciliary body, causing these blood vessels to narrow and thereby reducing the volume of fluid that filters from the blood vessels to create aqueous humour.
Avoid using Alphagan if you have taken an MAO inhibitor, including isocarboxazid, phenelzine, rasagiline, selegiline, or tranylcypromine, within the last 14 days.
Before utilizing Alphagan, inform your doctor if you have any history of kidney or liver disease, heart disease, high blood pressure, circulatory issues like Raynaud's or Buerger's disease, or if you have experienced fainting or low blood pressure.
Do not use Alphagan while wearing contact lenses, as this medication may contain preservatives that can adhere to soft lenses. Please wait at least 15 minutes after administering Alphagan before inserting your contact lenses.
Ensure that the dropper tip does not touch any surfaces, including your eyes or hands. Contaminated droppers can introduce infection into your eye, potentially leading to vision loss or serious eye damage.
Side Effects: possible burning, stinging, or itching sensations in the eyes; a feeling of something being in the eye; redness in the eye or eyelid; mild swelling or puffiness around the eyes; light sensitivity; nausea, an upset stomach; headaches, dizziness; muscle aches; sleep disturbances (insomnia); dry mouth or nose; or an unusual or unpleasant taste in your mouth.