Skip to main content

Alavert Disease Interactions

There is 1 disease interaction with Alavert (loratadine).


Loratadine (applies to Alavert) renal/liver disease

Moderate Potential Hazard, High plausibility. Applicable conditions: Renal Dysfunction

Loratadine is primarily converted by the liver to an active metabolite, and both parent drug and metabolite are excreted in the urine. Patients with renal and/or liver disease may be at greater risk for adverse effects from loratadine due to drug and metabolite accumulation. The manufacturer recommends one-half the regular dosage initially in patients with liver failure or decreased renal function (GFR < 30 mL/min). Due to the differential effects of hepatic impairment on the serum half-life and clearance of loratadine and pseudoephedrine, the use of products containing a fixed combination of these drugs is not recommended in the presence of liver failure.


  1. Matzke GR, Halstenson CE, Opsahl JA, Hilbert J, Perentesis G, Radwanski E, Zampaglione N "Pharmacokinetics of loratadine in patients with renal insufficiency." J Clin Pharmacol 30 (1990): 364-71
  2. Clissold SP, Sorkin EM, Goa KL "Loratadine. A preliminary review of its pharmacodynamic properties and therapeutic efficacy." Drugs 37 (1989): 42-57
  3. Hilbert J, Moritzen V, Parks A, Radwanski E, Perentesis G, Symchowicz S, Zampaglione N "The pharmacokinetics of loratadine in normal geriatric volunteers." J Int Med Res 16 (1988): 50-60
  4. "Product Information. Claritin (loratadine)." Schering Corporation (2002):
  5. Schiano TD, Bellary SV, Cassidy MJ, Thomas RM, Black M "Subfulminant liver failure and severe hepatotoxicity caused by loratadine use." Ann Intern Med 125 (1996): 738-40
  6. Monroe EW "Safety and efficacy of loratadine in urticaria." Int J Dermatol 35 (1996): 837-41
View all 6 references

Alavert drug interactions

There are 93 drug interactions with Alavert (loratadine).

Alavert alcohol/food interactions

There is 1 alcohol/food interaction with Alavert (loratadine).

Report options

Share by QR Code
QR code containing a link to this page

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.