Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Zaditor (ketotifen) and ketorolac eye drops (Acular) are both eye drops, but they serve different purposes and have distinct characteristics. Zaditor is an over-the-counter antihistamine used to relieve itchy eyes caused by allergies. It’s typically used twice a day, is available as a lower-cost generic, and is safe for children aged 3 and older. Common side effects include headache and runny nose. On the other hand, ketorolac is a prescription-only, non-steroidal anti-inflammatory drug (NSAID) used to treat pain and inflammation after eye surgeries like cataract removal and corneal surgery. It can also help with allergy-related itchy eyes but is not the first choice for this condition. It’s used 2 to 4 times a day, and it can cause stinging or burning. Ketorolac eye drops are available in generic form and suitable for children as young as 2 years old. Both medications require you to remove contact lenses before use, but ketorolac eye drops have additional risks like slower healing and potential breathing problems for those with certain medical histories.
Zaditor (ketotifen)
Ketorolac eye drop
Zaditor (ketotifen)
Ketorolac eye drop
Summary of Zaditor vs. Acular
Summary for Antihistamine
Zaditor (ketotifen) is an antihistamine eye drop that's available over the counter for allergy-related itchy eyes. It works by blocking histamine and stopping your body from releasing chemicals that cause allergy symptoms. Adults and children can use Zaditor (ketotifen). The typical dosage is one drop into the affected eye(s) twice daily. Side effects can include headache, blurry vision, and dry eyes.
Summary for NSAID
Prescription only
Ketorolac eye drop is a non-steroidal anti-inflammatory drug (NSAID). It's used to treat inflammation and pain after corneal or cataract surgery. Ketorolac eye drop can also help with itchy eyes from allergies, but it's not a first-choice medication for this condition. Ketorolac eye drop can be used by adults and children and is typically instilled 2 to 4 times per day, depending on the medical condition. Some common side effects include stinging, burning, and irritation after putting the eye drops. Ketorolac eye drop is available as a generic and as brand name medications (Acular, Acular LS, and Acuvail).
Indications of Zaditor vs. Acular
Indications for
•Allergy-related itchy eyes
Indications for
•Relief of pain or inflammation after cornea refractive surgery in people ages 3 years and older - Ketorolac (Acular LS) 0.4% only
•Relief of pain or inflammation after cataract removal in people ages 2 years and older- Ketorolac (Acuvail) 0.45% and ketorolac (Acular) 0.5% only
•Itchy eyes due to allergies in people ages 2 years and older - Ketorolac (Acular) 0.5% only