Introduction
Phenil is a prescription medication that contains two active ingredients: Chlorpheniramine Maleate and Phenylephrine. It is commonly sold under the brand name Phenil. This eye drop is primarily used to relieve symptoms associated with allergic conjunctivitis, such as itching, redness, and swelling of the eyes.
Uses
Phenil is prescribed for the treatment of allergic conjunctivitis, a condition characterized by inflammation of the conjunctiva (the clear membrane covering the white part of the eye). Allergic conjunctivitis can be triggered by various allergens, such as pollen, pet dander, and dust mites. This eye drop helps to alleviate the uncomfortable symptoms caused by the allergic reaction, providing relief to patients.
Dosage and Administration
The recommended dosage for Phenil is 1 to 2 drops in each affected eye, 2 to 3 times a day, or as directed by your healthcare provider. Before applying the eye drop, wash your hands thoroughly to prevent contamination. Tilt your head back slightly, pull down your lower eyelid to create a small pocket, and instill the prescribed number of drops into the pocket. Close your eyes gently for a few moments to allow the medication to spread evenly across the eye surface. Avoid touching the dropper tip to any surface, including the eye, as this can lead to contamination.
Mechanism of Action
Chlorpheniramine Maleate, one of the active ingredients in Phenil, is an antihistamine. It works by blocking the action of histamine, a substance released during an allergic reaction. By interfering with histamine, Chlorpheniramine Maleate helps reduce itching, redness, and swelling of the eyes.
Phenylephrine, the other active ingredient, is a sympathomimetic agent that acts as a vasoconstrictor. It works by narrowing the blood vessels in the eyes, which helps to reduce redness and swelling.
Side Effects
Common side effects may include temporary stinging or burning sensation in the eyes, blurred vision, and increased sensitivity to light. These side effects are usually mild and tend to resolve on their own.
In rare cases, serious side effects may occur. If you experience severe eye pain, changes in vision, eye discharge, or any other unusual symptoms, stop using the eye drop and consult your healthcare provider immediately.
Drug Interactions
inform your healthcare provider about all the medications you are currently taking, including prescription medications, over-the-counter drugs, and herbal supplements. Certain medications may interact with Phenil, potentially affecting its effectiveness or increasing the risk of side effects. Common drug interactions include:
- Monoamine oxidase inhibitors (MAOIs)
- Beta-blockers
- Other sympathomimetic agents
To ensure your safety and the optimal effectiveness of Phenil, disclose your complete medication history to your healthcare provider.
Precautions
Before using Phenil, inform your healthcare provider if you have any allergies, especially to antihistamines or sympathomimetic agents. Additionally, let them know if you have any other eye conditions, such as glaucoma or dry eye syndrome.
Phenil should not be used in children below the age of 2 years without the guidance of a healthcare professional.
Avoid using Phenil while wearing contact lenses. If you wear contact lenses, remove them before applying the eye drop and wait for at least 15 minutes before reinserting them.
Storage
To maintain the effectiveness and safety of Phenil, store it properly. Keep the bottle tightly closed when not in use and store it at room temperature, away from direct sunlight and moisture. Do not freeze the medication. Keep it out of reach of children and pets.
Patient Tips
- Follow the dosage instructions provided by your healthcare provider and do not exceed the recommended dose.
- If you experience any discomfort, such as stinging or burning, after applying the eye drop, you can try refrigerating it before use. Cold drops may provide additional relief.
- If you are using other eye drops or ointments, wait for at least 5 minutes between applying each medication to prevent interactions.
- If your symptoms do not improve or worsen after a few days of using Phenil, consult your healthcare provider for further evaluation.
Please note that this description, as well as the other content on our website is for educational purposes only. We do not provide medical advice. For specific medical advices, diagnoses and treatment options you should consult with your doctor.
References
- Chlorphenamine: drowsy (sedating) antihistamine (NHS UK) [Accessed 29 Jun. 2024] (online) Available at:
- Beechams All-in-One Oral solution (Health Professionals SmPC) Available at:
- Chlorpheniramine (Drugs.com) [Accessed 27 Jun. 2024] (online) Available at:
- chlorpheniramine maleate (OTC) [Accessed 11 Jun. 2024] (online) Available at:
- Codeine (MedlinePlus) [Accessed 21 Jun. 2024] (online) Available at:
- Kumar M, Upadhayay P, Shankar R, Joshi M, Bhatt S, Malik A. Chlorpheniramine maleate containing chitosan-based nanoparticle-loaded thermosensitive in situ gel for management in allergic rhinitis. Drug Deliv Transl Res. 2019 Dec;9(6):1017-1026. doi: 10.1007/s13346-019-00639-w. [Accessed 13 Jun. 2024] Available at:
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