What is Alcaftadine used for?
Alcaftadine is used to prevent itching of the eyes due to allergies. Alcaftadine is an antihistamine. It works by blocking a certain natural substance (histamine) that causes allergic symptoms.
Do not use this medication to treat red or irritated eyes due to wearing contact lenses. Contact your doctor for further instructions if this occurs.
How should I take Alcaftadine?
Apply this medication in both eyes as directed by your doctor, usually once a day.
Wash your hands before each use. To avoid contamination, do not touch the dropper tip or let it touch your eye or any other surface.
The preservative in this product may be absorbed by contact lenses. If you wear contact lenses, remove them before using this medication and keep them out of your eyes for at least 10 minutes after each dose. Do not wear contact lenses if your eyes are red.
Tilt your head back, look upward, and pull down the lower eyelid to make a pouch. Hold the dropper directly over your eye and place one drop into the pouch as directed by your doctor. Look downward, gently close your eyes, and place one finger at the corner of your eye (near the nose). Apply gentle pressure for 1 to 2 minutes before opening your eyes. This will prevent the medication from draining out. Try not to blink or rub your eye. Repeat these steps for your other eye.
Do not rinse the dropper. Replace the dropper cap after each use.
If you are using another kind of eye medication (for example, other drops or ointments), wait at least 5 minutes before applying other medications. Use eye drops before eye ointments to allow the drops to enter the eye.
Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time each day.
Do not use this product if it becomes contaminated (for example, drops turn a dark color). Using contaminated eye medication can cause infection, serious damage to the eye, and loss of vision. Contact your doctor or pharmacist for more information.
Tell your doctor if your condition does not improve in a few days or if it worsens.
How do I store Alcaftadine?
Alcaftadine is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store Alcaftadine in the bathroom or the freezer. There may be different brands of Alcaftadine that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.
You should not flush Alcaftadine down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.
Precautions & warnings
What should I know before using Alcaftadine?
Before using this medication, tell your doctor or pharmacist your medical history, especially of: contact lens use.
After you apply this drug, your vision may be temporarily unclear. Do not drive, use machinery, or do any activity that requires clear vision until you are sure you can perform such activities safely.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
If you develop an eye infection or eye injury, or require eye surgery, ask your doctor if you should continue to use your current bottle of alcaftadine eye drops or start a new bottle.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
It is unknown if this drug passes into breast milk. Consult your doctor before breast-feeding.
Is it safe during pregnancy or breast-feeding?
There are no adequate studies in women for determining risk when using this Alcaftadine during pregnancy or while breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking Alcaftadine. Alcaftadine is pregnancy risk category B according to the US Food and Drug Administration (FDA).
FDA pregnancy risk category reference below:
- A=No risk,
- B=No risk in some studies,
- C=There may be some risk,
- D=Positive evidence of risk,
What side effects can occur from Alcaftadine?
Mild and temporary burning/stinging of the eyes may occur when you apply this medication. If this effect persists or worsens, tell your doctor or pharmacist promptly.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.
What drugs may interact with Alcaftadine?
Alcaftadine may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.
Does food or alcohol interact with Alcaftadine?
Alcaftadine may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.
What health conditions may interact with Alcaftadine?
Alcaftadine may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have.
The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using this Alcaftadine.
What is the dose of Alcaftadine for an adult?
Usual Adult Dose for Allergic Conjunctivitis
Instill one drop in each eye once a day
What is the dose of Alcaftadine for a child?
Usual Pediatric Dose for Allergic Conjunctivitis
2 years and older:
Instill one drop in each eye once a day
Safety and efficacy have not been established in patients younger than 2 years.
How is Alcaftadine available?
Alcaftadine is available in the following dosage forms and strengths:
- Ophthalmic solution.
What should I do in case of an emergency or overdose?
In case of an emergency or an overdose, call your local emergency services or go to your nearest emergency room.
What should I do if I miss a dose?
If you miss a dose of Alcaftadine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.
Hello Health Group does not provide medical advice, diagnosis or treatment.
Review Date: November 15, 2018 | Last Modified: September 12, 2019
Alcaftadine Ophthalmic Dosage. https://www.drugs.com/dosage/alcaftadine-ophthalmic.html. Accessed November 14, 2018.
Alcaftadine Drops. https://www.webmd.com/drugs/2/drug-155184/alcaftadine-ophthalmic-eye/details. Accessed November 14, 2018.