Aloe - Alka-Seltzer Plus Cold (Aspirin, Chlorpheniramine, Phenylpropanolamine) Interaction
Herbal: Aloe
Also Known As: Aloe vera, Aloe Capensis, Aloe Gel, Aloe Latex, Aloe Leaf Gel, Aloe Perfoliata, Aloe Vera Gel, Aloes, Burn Plant, Cape Aloe, Chritkumari, Curacao Aloe, Elephant's Gall, Ghee-Kunwar, Ghi-Kuvar, Ghrita-Kumari, Indian Aloe, Kanya, Kumari, Lily of the Desert, Miracle plant
Drug: Aspirin, Chlorpheniramine, Phenylpropanolamine
Brand names:
Alka-Seltzer Plus Cold

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 04, 2025
Interaction Details
Aspirin, Chlorpheniramine, Phenylpropanolamine is classified as belonging to the following category: Anticoagulant/Antiplatelet Drugs
Theoretically, aloe gel might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro research shows that aloe gel can inhibit platelet aggregation. This inhibition was greater than that seen with celecoxib, but less than that seen with aspirin.
Interaction Rating
Likelihood of Occurrence
PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
References
- Mushtaq S, Mushtaq Z, Sarfraz J, et al. Comparison of effect of aloe vera gel with aspirin and celecoxib on platelet aggregation. Professional Med J. 2020; 27(5):973-978.
Aloe Overview

Aloe - More Interactions
Aloe interacts with 457 drugs
Interaction Rating Key
These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.
Major | The combined use of these agents is strongly discouraged as serious side effects or other negative outcomes could occur. |
Moderate | Use cautiously under the care of a healthcare professional or avoid this combination. A significant interaction or negative outcome could occur. |
Minor | Be aware that there is a chance of an interaction. Watch for warning signs of a potential interaction. |
Unknown | No interactions have been reported or no interaction data is currently available. |
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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
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Drug descriptions are provided by MedlinePlus.