Can You Take Loratadine With Lemsip Products?

In our latest question and answer, the pharmacist discusses whether or not it is safe to take loratadine with Lemsips products.


Can I take Lemsip or decongestants with loratadine?

Asked by Emily On Dec 06, 2021

Answered by
Medical Content Reviewed By HelloPharmacist Staff

Published Dec 06, 2021
Last updated Apr 11, 2024

Key points

  • There are no known drug interactions between the drugs contained in Lemsip brand products and loratadine.

Hi and thanks for reaching out!

The pharmacist team here is United States-based, so I had to look up exactly what drugs are contained in Lemsip, a UK-based brand of cold medicine.

Drugs Contained In Lemsip

It looks like Lemsip has a few different products available, including:

  • Lemsip Cold & Flu Lemon Powder
  • Lemsip Cough
  • Lemsip Max Day & Night Cold & Flu Relief
  • Lemsip Max All in One Cold & Flu

They can contain any of the following:

  • Paracetamol (known as acetaminophen in the US)
  • Phenylephrine
  • Guaifenesin
  • Caffeine

You mentioned a decongestant specifically in your question and phenylephrine is the decongestant contained in Lemsip products.

Lemsip With Loratadine

The good news is that none of the above drugs contained in Lemsip products interact with loratadine (the generic for Claritin here in the United States), including phenylephrine. Therefore, Lemsip products are safe to take with loratadine.

In the United States, there are even some products that contain both loratadine and a decongestant (such as Claritin-D, which contains loratadine, and pseudoephedrine, a similar decongestant to phenylephrine).

Final Words

Thanks again for reaching out to us!

Although our pharmacists may not have particular experience with certain UK brands of medicine, most contain drugs that are also available in the US, just under a different name. So, if you have questions about any other drugs, let us know!


  • Loratadine Monograph, PubChem
  • Lemsip manufacturer website, Lemsip

About the Pharmacist

Dr. Brian Staiger, PharmD

Dr. Brian has been practicing pharmacy for over 13 years and has wide-ranging experiences in many different areas of the profession. From retail, clinical, program development, and administrative responsibilities, he's your knowledgeable and go-to source for all your pharmacy and medication-related questions! Dr. Brian Staiger also has herbalist training and educational certificates in the field of medical ethnobotany. Feel free to send him an email at [email protected]! You can also connect with Dr. Brian Staiger on LinkedIn.

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