Drug interactions
Clemastine + Hyaluronidase
Severity: Minor
Clemastine and Hyaluronidase: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Large systemic doses of antihistamines are reported in labeling to make tissues partly resistant to hyaluronidase. This may reduce the spreading effect and require larger doses.
What this interaction means in plain words
Clemastine and Hyaluronidase have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Clemastine belongs to Respiratory; Hyaluronidase belongs to Miscellaneous.
Why it happens
Antihistamines may reduce tissue responsiveness to hyaluronidase; mechanism not well defined.
What to do
Assess dispersion effect and be prepared to use a larger hyaluronidase dose if the response is inadequate in patients on high-dose antihistamines.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Clemastine
Other interactions of Hyaluronidase
Frequently asked questions
Can I take Clemastine with Hyaluronidase?
MediHelp rates the interaction as minor. Clemastine and Hyaluronidase have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Large systemic doses of antihistamines are reported in labeling to make tissues partly resistant to hyaluronidase. This may reduce the spreading effect and require larger doses.
How serious is the interaction between Clemastine and Hyaluronidase?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Assess dispersion effect and be prepared to use a larger hyaluronidase dose if the response is inadequate in patients on high-dose antihistamines.
What other medicines interact with Clemastine?
MediHelp also lists interactions of Clemastine with, for example, Alfentanil, Benzhydrocodone / acetaminophen, Buprenorphine buccal. The full list is on the Clemastine page.
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