From the FDA Drug Label
Allergic-type reactions are rare and may occur as a result of sensitivity to the local anesthetic or to other formulation ingredients, such as the antimicrobial preservative chlorobutanol contained in multiple-dose vials These reactions are characterized by signs such as urticaria, pruritus, erythema, angioneurotic edema (including laryngeal edema), tachycardia, sneezing, nausea, vomiting, dizziness, syncope, excessive sweating, elevated temperature, and, possibly, anaphylactoid-like symptomatology (including severe hypotension)
Vomiting after Novocain can occur as part of an allergic-type reaction, which is a rare but possible side effect of the drug 1. The symptoms of an allergic reaction to Novocain may include:
- Nausea
- Vomiting
- Dizziness
- Sneezing
- Excessive sweating
- Elevated temperature It is essential to monitor patients for signs of an allergic reaction and provide prompt treatment if necessary.
From the Research
Vomiting after receiving Novocain is uncommon, but if it occurs, it is essential to contact your dentist or healthcare provider promptly and follow their advice to manage symptoms and prevent complications. While waiting for professional advice, stay hydrated with small sips of clear fluids like water or flat ginger ale, avoid solid foods until the nausea subsides, and rest in a comfortable position. Some possible causes of vomiting after Novocain include:
- The epinephrine in dental anesthetics can cause increased heart rate and nausea 2
- Swallowing blood or dental materials during procedures may irritate the stomach
- A mild allergic reaction to the anesthetic
- Sensitivity to the feeling of numbness or anxiety during dental procedures Over-the-counter medications like dimenhydrinate (Dramamine) 50mg every 4-6 hours or meclizine (Bonine) 25mg every 24 hours may help manage nausea, but consult a healthcare provider before taking these 3. It is crucial to seek immediate medical attention if vomiting persists beyond a few hours, is severe, or is accompanied by other symptoms like rash or difficulty breathing. Recent studies have shown that ondansetron and metoclopramide are effective antiemetics for managing nausea and vomiting, but their use should be guided by a healthcare provider 4, 5. In general, the management of vomiting after Novocain should prioritize the patient's comfort, hydration, and overall well-being, while also addressing the underlying cause of the symptoms 6, 2.