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The following adverse reactions have been identified during post-approval use of hyaluronidase products. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. The most frequently reported adverse reactions have been local injection site reactions.
Hyaluronidase has been reported to enhance the adverse reactions associated with coadministered drug products. Edema has been reported most frequently in association with hypodermoclysis.
Allergic reactions (urticaria, angioedema) have been reported in less than 0.1% of patients receiving hyaluronidase. Anaphylactic-like reactions following retrobulbar block or intravenous injections have occurred, rarely.
Read the Amphadase (hyaluronidase injection) Side Effects Center for a complete guide to possible side effects
It is recommended that appropriate references be consulted regarding physical or chemical incompatibilities before adding Amphadase® to a solution containing another drug.
Furosemide, the benzodiazepines and phenytoin have been found to be incompatible with hyaluronidase.
Hyaluronidase should not be used to enhance the dispersion and absorption of dopamine and/or alpha agonist drugs.
When considering the administration of any other drug with hyaluronidase, it is recommended that appropriate references first be consulted to determine the usual precautions for the use of the other drug; e.g., when epinephrine is injected along with hyaluronidase, the precautions for the use of epinephrine in cardiovascular disease, thyroid disease, diabetes, digital nerve block, ischemia of the fingers and toes etc., should be observed.
When hyaluronidase is added to a local anesthetic agent, it hastens the onset of analgesia and tends to reduce the swelling caused by local infiltration, but the wider spread of the local anesthetic solution increases its absorption; this shortens its duration of action and tends to increase the incidence of systemic reaction.
Salicylates, Cortisone, ACTH, Estrogens and Antihistamines
Patients receiving large doses of salicylates, cortisone, ACTH, estrogens or antihistamines may require larger amounts of hyaluronidase for equivalent dispersing effect, since these drugs apparently render tissues partly resistant to the action of hyaluronidase.
Read the Amphadase Drug Interactions Center for a complete guide to possible interactions
Last reviewed on RxList: 7/5/2012
Additional Amphadase Information
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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