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Does Side Effects of Hyalgan (hyaluronic acid) cause side effects?
Hyalgan (hyaluronic acid) is a natural chemical found in almost all species of animals and in various parts of the human body that works as a biological lubricant, reducing friction between adjacent tissues.
It is present in high amounts in joints and synovial fluid (the fluid that fills the knee joint). Hyalgan is used to treat pain due to osteoarthritis of the knee in patients who do not get adequate relief from simple pain medicines or from exercise and physical therapy.
It is administered by injection directly into the knee joint (intra-articular injection). The exact mechanism by which Hyalgan works is not known. The synovial fluid in the knees helps lubricate and cushion our joints during movement. Sodium hyaluronate is the major component in the synovial fluid.
People with osteoarthritis do not have enough hyaluronic acid in their synovial fluid. It is thought that Hyalgan injection helps restore synovial fluid, thereby reducing some of the pain and discomfort associated with osteoarthritis.
Common side effects of Hyalgan include
- pain at the injection site,
- swelling of the knee,
- upset stomach, and
Other side effects of Hyalgan include
No clinically significant drug-drug interactions between Hyalgan injection and other medications have been reported.
Hyalgan (hyaluronic acid) side effects list for healthcare professionals
- Hyalgan was investigated in a pivotal clinical investigation conducted in the United States in which there were three arms (164 subjects treated with Hyalgan; 168 with placebo; and 163 with naproxen) (refer to Table 1).
- Common adverse events reported for the Hyalgan-treated subjects were
- Swelling and effusion, local skin reactions (ecchymosis and rash), and headache occurred at equal frequency in the Hyalgan- and placebo-treated groups. Hyalgan treated subjects had 48/164 (29%) incidents of gastrointestinal complaints that were not statistically different from the placebo-treated group.
- A statistically significant difference in the occurrence of pain at the injection site was noted in the Hyalgan-treated subjects: 38/164 (23%) in comparison to 22/168 (13%) in the placebo-treated subjects (p = 0.022).
- There were 6/164 (4%) premature discontinuations in Hyalgan-treated subjects due to injection site pain in comparison to 1/168 ( < 1%) in the placebo-treated subjects.
- These differences were not statistically significant. Two (2/164, 1.2%) Hyalgan-treated subjects and 3/168 (1.8%) placebo-treated subjects were reported to have positive bacterial cultures of effusion aspirated from the treated knee.
- The two Hyalgan-treated subjects and two of the placebo-treated subjects did not exhibit evidence of infection clinically or subsequently and were not treated with antibiotics. One of the placebo-treated subjects was hospitalized and received presumptive treatment for septic arthritis.
- Hyalgan has been
in clinical use in Europe since 1987. Analysis of the adverse events that have
been reported with the use of Hyalgan in
Europe reveals that most of the events are related to local symptoms such as
- swelling/effusion, and
- warmth or redness at the injection site.
- Usually such symptoms disappear within a few days by resting the affected joint and applying ice locally.
- Only sporadically have these events been more severe and longer lasting.
- Very rare cases of intra-articular infection have been reported.
- Strict aseptic technique must be followed in administering Hyalgan.
- Systemic allergic reactions rarely have been recorded.
- Isolated cases of an anaphylactic or anaphylactic-like reaction have been reported in post-marketing experience and they all resolved.
- Allergic-type signs and symptoms such as rash, pruritus, and urticaria also are very rare.
- A few cases of fever were reported. In some instances, they were associated with local reactions, in other cases, no association other than temporal was found with the use of the product.
- Adverse experience data from the literature contain no evidence of increased risk relating to retreatment with Hyalgan.
- The frequency and severity of adverse events occurring during repeat treatment cycles did not increase over that reported for a single treatment cycle.
Hyalgan (hyaluronic acid) is a natural chemical found in almost all species of animals and in various parts of the human body that works as a biological lubricant, reducing friction between adjacent tissues. Common side effects of Hyalgan include pain at the injection site, swelling of the knee, rash, itching, headache, nausea, vomiting, upset stomach, and diarrhea. It is unknown if Hyalgan is safe to use during pregnancy because it has not been evaluated in pregnant women. It is unknown if Hyalgan can enter breast milk.
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Medications & Supplements
Report Problems to the Food and Drug Administration
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.
Professional side effects and drug interactions sections courtesy of the U.S. Food and Drug Administration.