Key takeaways
Lastacaft (alcaftadine) and loratidine (Claritin) are both antihistamines, but they are used differently and have distinct forms. Lastacaft is an eye drop used once daily to treat eye itching and redness due to allergies, while loratidine is an oral medication taken once daily to relieve general allergy symptoms like runny nose and watery eyes. Lastacaft is only available as a brand medication and is applied directly to the eyes, whereas loratidine is available in various forms, including tablets and liquids, and has generic options. Lastacaft can cause eye irritation and isn’t suitable for contact lens-related irritation, while loratidine may cause headaches and drowsiness. Additionally, Lastacaft is safe for children as young as 2 years old, similar to liquid forms of loratidine. Loratidine tablets and capsules can’t be used in children younger than 6 years old.
