Lastacaft : Uses, Side Effects, Interactions & More

Why is this medication prescribed?

Lastacaft (Alcaftadine) ophthalmic is used to relieve the itching of allergic conjunctivitis. Lastacaft is in a class of medications called antihistamines. It works by blocking histamine, a substance in the body that causes allergic symptoms.

How should this medicine be used?

Lastacaft (Alcaftadine) ophthalmic comes as a solution (liquid) to instill into the eye. It is usually instilled into the affected eyes once a day. To remind you to use Lastacaft, take it around the same time each day. Follow the directions on your prescription label carefully and ask your doctor or pharmacist to explain any parts you do not understand. Use Lastacaft exactly as directed. Do not use more or less or use it more often than prescribed by your doctor.

To instill the eye drops, follow these steps:

  1. Wash your hands well with soap and water.
  2. Check the dropper tip to make sure it is not chipped or cracked.
  3. Avoid touching the tip of the dropper against your eye or anything else; eye drops and droppers must be kept clean.
  4. While tilting your head back, lower the lower lid of your eye with your index finger to form a pocket.
  5. Hold the dropper (tip down) with the other hand, as close to the eye as possible without touching it.
  6. Rest the remaining fingers of that hand against your face.
  7. While looking up, gently squeeze the dropper so that a single drop falls into the pocket formed by the lower eyelid. Remove your index finger from the lower eyelid.
  8. Close your eye for 2 to 3 minutes and tilt your head down as if looking at the ground. Try not to blink or squeeze your eyelids.
  9. Place a finger over the tear duct and apply gentle pressure.
  10. Wipe any excess fluid from your face with a tissue.
  11. If you are using more than one drop in the same eye, wait at least 5 minutes before instilling the next drop.
  12. Replace and tighten the dropper bottle cap. Do not clean or rinse the dropper tip.
  13. Wash your hands to remove any medicine.

Other uses for this medicine

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

What special precautions should I follow?

Before using Lastacaft eye drops,

  • Tell your doctor and pharmacist if you are allergic to Lastacaft, any other medications, or any of the ingredients in Lastacaft solution. Ask your pharmacist for a list of the ingredients.
  • Tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking.
  • Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while using Lastacaft, call your doctor.
  • You should know not to wear contact lenses if your eyes are red. If your eyes are not red and you wear contact lenses, you should know that the Lastacaft solution contains benzalkonium chloride which can be absorbed by soft contact lenses. Remove contact lenses before instilling Lastacaft and put them back in 10 minutes later.

What special dietary instructions should I follow?

Unless your doctor tells you otherwise, continue your normal diet.

What should I do if I forget a dose?

Instill the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not give a double dose to make up for a missed one.

What side effects can this medication cause?

Lastacaft eye drops may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • eye irritation
  • itching, burning, or stinging of the eye
  • eye redness
  • runny nose
  • headache

Lastacaft eye drops may cause other side effects. Call your doctor if you have any unusual problems while using this medicine.

If you experience a serious side effect, you or your doctor can submit a report online to the Food and Drug Administration’s (FDA) MedWatch Adverse Event Reporting program (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).

What should I know about storage and disposal of this medication?

Keep this medicine in the container it came in, tightly closed, and out of the reach of children. Store at room temperature and away from excess heat and moisture (not in the bathroom).

Unnecessary medications must be disposed of in special ways to ensure that pets, children, and others cannot consume them. However, you should not flush this medicine down the toilet. Instead, the best way to dispose of your medications is through a drug take-back program. Talk to your pharmacist or contact your local garbage / recycling department to find out about take-back programs in your community. See the FDA Safe Drug Disposal website (http://goo.gl/c4Rm4p) for more information if you do not have access to a take-back program.

It is important to keep all medicines out of the sight and reach of children, since many containers (such as those containing weekly pills and those for eye drops, creams, patches and inhalers) are not resistant to children and small children can easily open them. To protect young children from poisoning, always close the safety caps and immediately place the medicine in a safe place, one that is upright and out of their sight and reach. http://www.upandaway.org

What other information should I know?

Keep all your appointments with your doctor.

Don’t let anyone use your medicine. Ask your pharmacist any questions you have about refilling your prescription.

It is important that you keep a written list of all prescription and over-the-counter (over-the-counter) medications you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should take this list with you each time you visit a doctor or if you go into hospital. It is also important information to take with you in case of emergencies.

Brand Names

  • Lastacaft®

Disclaimer: We have made every effort to ensure that all information is factually accurate, comprehensive and up-to-date. However, this article should not be used as a licensed health care professional’s choice of knowledge and expertise. You should always consult your doctor or other health care professional before taking any medication. The information given here is subject to change and it has not been used to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions or adverse effects. The lack of warning or other information for any drug does not indicate that the combination of medicine or medication is safe, effective or appropriate for all patients or all specific uses.

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