Slideshows Images Quizzes

Copyright © 2018 by RxList Inc. RxList does not provide medical advice, diagnosis or treatment. See additional information.


Last reviewed on RxList: 12/17/2018
Naropin Side Effects Center

Last reviewed on RxList 12/17/2018

Naropin (ropivacaine hcl) is used as a local (in only one area) anesthesia for a spinal block, also called an epidural. Naropin is used to provide anesthesia during a surgery or C-section, or to ease labor pains. Common side effects of Naropin include:

  • nausea,
  • vomiting,
  • headache,
  • back pain,
  • fever,
  • itching,
  • numbness or tingly feeling, or
  • problems with urination or sexual function.

Tell your doctor if you have serious side effects of Naropin including:

  • anxiety,
  • restlessness,
  • confusion,
  • feeling like you might pass out,
  • problems with speech or vision,
  • ringing in the ears,
  • metallic taste,
  • numbness or tingling around your mouth, or
  • tremors,
  • seizures (convulsions),
  • weak or shallow breathing,
  • slow heart rate,
  • weak pulse,
  • fast heart rate,
  • gasping, or
  • feeling unusually hot.

The dose of Naropin depends on many factors, including the procedure being performed, the area to be numbed, the vascularity of the tissues, the number of neuronal segments to be blocked, the depth of anesthesia and degree of muscle relaxation required, the duration of anesthesia desired, individual tolerance, and the physical condition of the patient. Naropin may interact with birth control pills or other hormones, cimetidine, cyclobenzaprine, interferon, ondansetron, propranolol, theophylline, verapamil, warfarin, heart rhythm medications, antidepressants, or medicines to treat psychiatric disorders. Tell your doctor all medications you use. Naropin is not expected to be harmful to a fetus. Consult your doctor if you are pregnant or plan to become pregnant. It is not known whether this medication passes into breast milk or if it could harm a nursing baby. Consult your doctor before breastfeeding.

Our Naropin (ropivacaine hcl) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.


Digestive Disorders: Common Misconceptions See Slideshow
Naropin Consumer Information

Get emergency medical help if you have signs of an allergic reaction: hives or red skin rash; dizziness; sneezing; difficulty breathing; nausea or vomiting; sweating; swelling of your face, lips, tongue, or throat.

Tell your caregivers at once if you have any of these serious side effects:

  • feeling anxious, restless, confused, or like you might pass out;
  • problems with speech or vision;
  • ringing in the ears, metallic taste, numbness or tingling around your mouth, or tremors;
  • seizure (convulsions);
  • weak or shallow breathing;
  • slow heart rate, weak pulse; or
  • fast heart rate, gasping, feeling unusually hot.

Common side effects include:

  • nausea, vomiting;
  • headache, back pain;
  • fever;
  • itching;
  • numbness or tingly feeling; or
  • problems with urination or sexual function.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the entire detailed patient monograph for Naropin (Ropivacaine Hcl)


About how much does an adult human brain weigh? See Answer
Naropin Professional Information


Reactions to ropivacaine are characteristic of those associated with other amide-type local anesthetics. A major cause of adverse reactions to this group of drugs may be associated with excessive plasma levels, which may be due to overdosage, unintentional intravascular injection or slow metabolic degradation.

The reported adverse events are derived from clinical studies conducted in the U.S. and other countries. The reference drug was usually bupivacaine. The studies used a variety of premedications, sedatives, and surgical procedures of varying length. A total of 3,988 patients have been exposed to Naropin at concentrations up to 1% in clinical trials. Each patient was counted once for each type of adverse event.

Incidence ≥5%

For the indications of epidural administration in surgery, cesarean section, postoperative pain management, peripheral nerve block, and local infiltration, the following treatmentemergent adverse events were reported with an incidence of ≥ 5% in all clinical studies (N=3988): hypotension (37%), nausea (24.8%), vomiting (11.6%), bradycardia (9.3%), fever (9.2%), pain (8%), postoperative complications (7.1%), anemia (6.1%), paresthesia (5.6%), headache (5.1%), pruritus (5.1%), and back pain (5%).

Incidence 1 To 5%

Urinary retention, dizziness, rigors, hypertension, tachycardia, anxiety, oliguria, hypoesthesia, chest pain, hypokalemia, dyspnea, cramps, and urinary tract infection.

Incidence In Controlled Clinical Trials

The reported adverse events are derived from controlled clinical studies with Naropin (concentrations ranged from 0.125% to 1% for Naropin and 0.25% to 0.75% for bupivacaine) in the U.S. and other countries involving 3,094 patients. Table 3A and 3B list adverse events (number and percentage) that occurred in at least 1% of Naropintreated patients in these studies. The majority of patients receiving concentrations higher than 5 mg/mL (0.5%) were treated with Naropin.

Table 3A: Adverse Events Reported in ≥1% of Adult Patients Receiving Regional or Local Anesthesia (Surgery, Labor, Cesarean Section, Postoperative Pain Management, Peripheral Nerve Block and Local Infiltration)

Adverse Reaction Naropin
total N=1661
total N=1433
N (%) N (%)
Hypotension 536 (32.3) 408 (28.5)
Nausea 283 (17) 207 (14.4)
Vomiting 117 (7) 88 (6.1)
Bradycardia 96 (5.8) 73 (5.1)
Headache 84 (5.1) 68 (4.7)
Paresthesia 82 (4.9) 57 (4)
Back pain 73 (4.4) 75 (5.2)
Pain 71 (4.3) 71 (5)
Pruritus 63 (3.8) 40 (2.8)
Fever 61 (3.7) 37 (2.6)
Dizziness 42 (2.5) 23 (1.6)
Rigors (Chills) 42 (2.5) 24 (1.7)
Postoperative complications 41 (2.5) 44 (3.1)
Hypoesthesia 27 (1.6) 24 (1.7)
Urinary retention 23 (1.4) 20 (1.4)
Progression of labor poor/failed 23 (1.4) 22 (1.5)
Anxiety 21 (1.3) 11 (0.8)
Breast disorder, breast-feeding 21 (1.3) 12 (0.8)
Rhinitis 18 (1.1) 13 (0.9)

Table 3B: Adverse Events Reported in ≥1% of Fetuses or Neonates of Mothers Who Received Regional Anesthesia (Cesarean Section and Labor Studies)

Adverse Reaction Naropin
total N = 639
total N = 573
N (%) N (%)
Fetal bradycardia 77 (12.1) 68 (11.9)
Neonatal jaundice 49 (7.7) 47 (8.2)
Neonatal complication-NOS 42 (6.6) 38 (6.6)
Apgar score low 18 (2.8) 14 (2.4)
Neonatal respiratory disorder 17 (2.7) 18 (3.1)
Neonatal tachypnea 14 (2.2) 15 (2.6)
Neonatal fever 13 (2) 14 (2.4)
Fetal tachycardia 13 (2) 12 (2.1)
Fetal distress 11 (1.7) 10 (1.7)
Neonatal infection 10 (1.6) 8 (1.4)
Neonatal hypoglycemia 8 (1.3) 16 (2.8)

Incidence <1%

The following adverse events were reported during the Naropin clinical program in more than one patient (N=3988), occurred at an overall incidence of <1%, and were considered relevant:

Application Site Reactions - injection site pain

Cardiovascular System - vasovagal reaction, syncope, postural hypotension, non-specific ECG abnormalities

Female Reproductive - poor progression of labor, uterine atony

Gastrointestinal System - fecal incontinence, tenesmus, neonatal vomiting

General and Other Disorders - hypothermia, malaise, asthenia, accident and/or injury

Hearing and Vestibular - tinnitus, hearing abnormalities

Heart Rate and Rhythm - extrasystoles, non-specific arrhythmias, atrial fibrillation

Liver and Biliary System - jaundice

Metabolic Disorders - hypomagnesemia

Musculoskeletal System - myalgia

Myo/Endo/Pericardium - ST segment changes, myocardial infarction

Nervous System - tremor, Horner’s syndrome, paresis, dyskinesia, neuropathy, vertigo, coma, convulsion, hypokinesia, hypotonia, ptosis, stupor

Psychiatric Disorders - agitation, confusion, somnolence, nervousness, amnesia, hallucination, emotional lability, insomnia, nightmares

Respiratory System - bronchospasm, coughing

Skin Disorders - rash, urticaria

Urinary System Disorders - urinary incontinence, micturition disorder

Vascular - deep vein thrombosis, phlebitis, pulmonary embolism

Vision - vision abnormalities

For the indication epidural anesthesia for surgery, the 15 most common adverse events were compared between different concentrations of Naropin and bupivacaine. Table 4 is based on data from trials in the U.S. and other countries where Naropin was administered as an epidural anesthetic for surgery.

Table 4: Common Events (Epidural Administration)

Adverse Reaction Naropin Bupivacaine
5 mg/mL
total N=256
7.5 mg/mL
total N=297
10 mg/mL
total N=207
5 mg/mL
total N=236
7.5 mg/mL
total N=174
N (%) N (%) N (%) N (%) N (%)
hypotension 99 (38.7) 146 (49.2) 113 (54.6) 91 (38.6) 89 (51.1)
nausea 34 (13.3) 68 (22.9)     41 (17.4) 36 (20.7)
bradycardia 29 (11.3) 58 (19.5) 40 (19.3) 32 (13.6) 25 (14.4)
back pain 18 (7) 23 (7.7) 34 (16.4) 21 (8.9) 23 (13.2)
vomiting 18 (7) 33 (11.1) 23 (11.1) 19 (8.1) 14 (8)
headache 12 (4.7) 20 (6.7) 16 (7.7) 13 (5.5) 9 (5.2)
fever 8 (3.1) 5 (1.7) 18 (8.7) 11 (4.7)    
chills 6 (2.3) 7 (2.4) 6 (2.9) 4 (1.7) 3 (1.7)
5 (2) 8 (2.7) 10 (4.8) 10 (4.2)    
paresthesia 5 (2) 10 (3.4) 5 (2.4) 7 (3)    
pruritus     14 (4.7) 3 (1.4)     7 (4)

Using data from the same studies, the number (%) of patients experiencing hypotension is displayed by patient age, drug and concentration in Table 5. In Table 6, the adverse events for Naropin are broken down by gender.

Table 5: Effects of Age on Hypotension (Epidural Administration) Total N: Naropin = 760, Bupivacaine = 410

AGE Naropin Bupivacaine
5 mg/mL 7.5 mg/mL 10 mg/mL 5 mg/mL 7.5 mg/mL
  N (%) N (%) N (%) N (%) N (%)
< 65 68 (32.2) 99 (43.2) 87 (51.5) 64 (33.5) 73 (48.3)
≥ 65 31 (68.9) 47 (69.1) 26 (68.4) 27 (60) 16 (69.6)

Table 6: Most Common Adverse Events by Gender (Epidural Administration) Total N: Females = 405, Males = 355

Adverse Reaction Female Male
N (%) N (%)
hypotension 220 (54.3) 138 (38.9)
nausea 119 (29.4) 23 (6.5)
bradycardia 65 (16) 56 (15.8)
vomiting 59 (14.6) 8 (2.3)
back pain 41 (10.1) 23 (6.5)
headache 33 (8.1) 17 (4.8)
chills 18 (4.4) 5 (1.4)
fever 16 (4) 3 (0.8)
pruritus 16 (4) 1 (0.3)
pain 12 (3) 4 (1.1)
urinary retention 11 (2.7) 7 (2)
dizziness 9 (2.2) 4 (1.1)
hypoesthesia 8 (2) 2 (0.6)
paresthesia 8 (2) 10 (2.8)

Systemic Reactions

The most commonly encountered acute adverse experiences that demand immediate countermeasures are related to the central nervous system and the cardiovascular system. These adverse experiences are generally dose-related and due to high plasma levels that may result from overdosage, rapid absorption from the injection site, diminished tolerance or from unintentional intravascular injection of the local anesthetic solution. In addition to systemic dose-related toxicity, unintentional subarachnoid injection of drug during the intended performance of lumbar epidural block or nerve blocks near the vertebral column (especially in the head and neck region) may result in underventilation or apnea ("Total or High Spinal"). Also, hypotension due to loss of sympathetic tone and respiratory paralysis or underventilation due to cephalad extension of the motor level of anesthesia may occur. This may lead to secondary cardiac arrest if untreated. Factors influencing plasma protein binding, such as acidosis, systemic diseases that alter protein production or competition with other drugs for protein binding sites, may diminish individual tolerance.

Epidural administration of Naropin has, in some cases, as with other local anesthetics, been associated with transient increases in temperature to >38.5°C. This occurred more frequently at doses of Naropin > 16 mg/h.

Neurologic Reactions

These are characterized by excitation and/or depression. Restlessness, anxiety, dizziness, tinnitus, blurred vision or tremors may occur, possibly proceeding to convulsions. However, excitement may be transient or absent, with depression being the first manifestation of an adverse reaction. This may quickly be followed by drowsiness merging into unconsciousness and respiratory arrest. Other central nervous system effects may be nausea, vomiting, chills, and constriction of the pupils.

The incidence of convulsions associated with the use of local anesthetics varies with the route of administration and the total dose administered. In a survey of studies of epidural anesthesia, overt toxicity progressing to convulsions occurred in approximately 0.1% of local anesthetic administrations.

The incidence of adverse neurological reactions associated with the use of local anesthetics may be related to the total dose and concentration of local anesthetic administered and are also dependent upon the particular drug used, the route of administration, and the physical status of the patient. Many of these observations may be related to local anesthetic techniques, with or without a contribution from the drug. During lumbar epidural block, occasional unintentional penetration of the subarachnoid space by the catheter or needle may occur. Subsequent adverse effects may depend partially on the amount of drug administered intrathecally as well as the physiological and physical effects of a dural puncture. These observations may include spinal block of varying magnitude (including high or total spinal block), hypotension secondary to spinal block, urinary retention, loss of bladder and bowel control (fecal and urinary incontinence), and loss of perineal sensation and sexual function. Signs and symptoms of subarachnoid block typically start within 2 to 3 minutes of injection. Doses of 15 and 22.5 mg of Naropin resulted in sensory levels as high as T5 and T4, respectively. Analgesia started in the sacral dermatomes in 2 to 3 minutes and extended to the T10 level in 10 to 13 minutes and lasted for approximately 2 hours. Other neurological effects following unintentional subarachnoid administration during epidural anesthesia may include persistent anesthesia, paresthesia, weakness, paralysis of the lower extremities, and loss of sphincter control; all of which may have slow, incomplete or no recovery. Headache, septic meningitis, meningismus, slowing of labor, increased incidence of forceps delivery, or cranial nerve palsies due to traction on nerves from loss of cerebrospinal fluid have been reported (see DOSAGE AND ADMINISTRATION discussion of Lumbar Epidural Block). A high spinal is characterized by paralysis of the arms, loss of consciousness, respiratory paralysis and bradycardia.

Cardiovascular System Reactions

High doses or unintentional intravascular injection may lead to high plasma levels and related depression of the myocardium, decreased cardiac output, heart block, hypotension, bradycardia, ventricular arrhythmias, including ventricular tachycardia and ventricular fibrillation, and possibly cardiac arrest (see WARNINGS, PRECAUTIONS, and OVERDOSE).

Allergic Reactions

Allergic type reactions are rare and may occur as a result of sensitivity to the local anesthetic (see WARNINGS). 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 symptomatology (including severe hypotension). Cross-sensitivity among members of the amide-type local anesthetic group has been reported. The usefulness of screening for sensitivity has not been definitively established.

Read the entire FDA prescribing information for Naropin (Ropivacaine Hcl)

Related Resources for Naropin

Related Drugs

© Naropin Patient Information is supplied by Cerner Multum, Inc. and Naropin Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.


Digestive Disorders: Common Misconceptions See Slideshow

Health Solutions From Our Sponsors