Can You Take Abilify and Claritin Together?
Yes, you can safely take Abilify (aripiprazole) and Claritin (loratadine) together—there are no clinically significant drug interactions between these medications.
Why This Combination is Safe
The FDA drug label for Abilify explicitly addresses drug interactions and does not list loratadine (Claritin) as a contraindicated or cautionary medication 1. The label specifically states that "no dosage adjustment is necessary" when Abilify is coadministered with various medications, and antihistamines like loratadine are not flagged as problematic 1.
Loratadine is a second-generation antihistamine with minimal drug interaction potential. Research confirms that loratadine and fexofenadine "appear to be the least likely nonsedating antihistamines to interact with other medications and to result in a life-threatening interaction" 2. This is particularly important because loratadine does not significantly interact with the cytochrome P450 enzyme system that metabolizes many psychiatric medications.
Key Metabolic Considerations
Abilify is primarily metabolized through CYP3A4 and CYP2D6 pathways 1. The drugs that require dose adjustments with Abilify are:
- Strong CYP3A4 inhibitors (e.g., itraconazole, clarithromycin)
- Strong CYP2D6 inhibitors (e.g., quinidine, fluoxetine, paroxetine)
- Strong CYP3A4 inducers (e.g., carbamazepine, rifampin)
Loratadine does not fall into any of these categories and does not meaningfully affect these metabolic pathways.
Clinical Considerations
While the combination is safe, be aware of these practical points:
Sedation potential: Loratadine at recommended doses does not cause sedation 3. However, Abilify may cause drowsiness in some patients 1. The combination does not increase sedation risk beyond what Abilify alone might cause.
No dose adjustments needed: Continue both medications at their prescribed doses without modification.
Monitor for Abilify's known side effects: The presence of loratadine does not change Abilify's side effect profile, which includes potential orthostatic hypotension, metabolic changes, and movement disorders 1.
Important Exception
The only antihistamine-related caution with Abilify involves benzodiazepines (not antihistamines). The FDA label notes that combining Abilify with benzodiazepines like lorazepam can increase sedation and orthostatic hypotension 1. This does not apply to Claritin.
Bottom line: Take both medications as prescribed without concern for drug-drug interactions. Inform your healthcare provider about all medications you're taking, but this specific combination poses no safety concerns.