Washington:The US Food and Drug Administration (FDA) on Monday (local time) warned coronavirus vaccine maker Johnson & Johnson of possible rare neurological complications caused due to its dose.
The complication is known as Guillain-Barre syndrome. While the FDA said it had not established the vaccine could cause the syndrome, it noted an increase in reports of the sometimes paralyzing condition, reported CNN.
"Today, the FDA is announcing revisions to the vaccine recipient and vaccination provider fact sheets for the Johnson & Johnson (Janssen) COVID-19 Vaccine to include information pertaining to an observed increased risk of Guillain-Barre Syndrome (GBS) following vaccination," the FDA said in a statement sent to CNN.
"Reports of adverse events following use of the Janssen COVID-19 Vaccine under emergency use authorization suggest an increased risk of Guillain-Barre syndrome during the 42 days following vaccination," the updated label reads. "Although the available evidence suggests an association between the Janssen vaccine and increased risk of GBS, it is insufficient to establish a causal relationship. No similar signal has been identified with the Moderna and Pfizer-BioNTech COVID-19 vaccines," the label added.
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The FDA said 100 preliminary reports of Guillain-Barre syndrome had been filed with the US government's Vaccine Adverse Reporting System, out of 12.8 million Janssen vaccines given. "Guillain Barre syndrome (a neurological disorder in which the body's immune system damages nerve cells, causing muscle weakness and sometimes paralysis) has occurred in some people who have received the Janssen COVID-19 Vaccine," the FDA says in the label update for patients and caregivers.
People should seek medical attention if they notice symptoms such as weakness or tingling in the arms and legs, especially if it spreads, after receiving a vaccine, the FDA said. Other telltale symptoms include difficulty walking, speaking, chewing or swallowing; double vision; and bowel or bladder control problems.