Cinchocaine is a potent amino amide local anesthetic, prescribed to relieve itching and pain caused by minor burns, sunburns, cuts, scratches, insect bites, poison ivy and in ear drop solutions.
It is also used to relieve rectal pain and itching due to hemorrhoids (piles).
It is a component of the veterinary drug called Somulose for euthanasia of horses and cattle.
It is available as a component in over-the-counter topical formulations. It is the active ingredient in some topical hemorrhoid creams such as Proctosedyl.
It acts by causing numbness in the area where it is applied and hence blocks the pain felt. It also helps with the swelling and inflammation of veins in the rectum and anus and relaxes the spasm of the back passage.
It has been withdrawn by the United States Food and Drug Administration for use as a spinal anesthetic due to high neurotoxicity.
It is contraindicated in patients who are allergic to the drug or to any other ingredient used to prepare the cream.
It should not be applied on inflamed, infected or broken skin areas.
It should not be used to treat certain kinds of skin infections or severe burns.
Avoid getting the medicine close to your nose, mouth, and especially in your eyes, because it can cause severe eye irritation.
The recommended dose of cinchocaine ointment for pain and itching:
Adults—The ointment can be used three or four times a day or as needed. Total amount used must not exceed 30 grams (g) in a 24-hour period.
Children 2 years of age and older—The ointment can be used three or four times a day or as needed.
Total amount used must not exceed 7.5 g in a 24-hour period.
Children younger than 2 years of age—Please check with the pediatrician for use and dose.
Enough ointment should be applied so as to cover the entire affected area.
Before applying, wash the skin with soap and water, rinse and pat dry.
For hemorroids, it should be applied on the outside of the rectum after each bowel movement or up to 4 times a day.
Side effects of cinchocaine occur if the medicine gets absorbed into the bloodstream in conditions when it is used in excess, or when it is used on cuts or when it is applied over large skin areas.
It has been reported to cause severe adverse reactions if ingested by mistake,
• Skin: allergic contact dermatitis, swelling of the face, lips, tongue, or throat
• Cardiovascular disorder: Arrhythmias (fast or irregular heartbeats), cardiac arrest or failure
• Neurological disorder: Seizures
• Opthamological disorder: Blurred vision
Do not rub your eye after applying the drug.
Accidental ingestion of the drug in any of its formulations, especially by children may be harmful and sometimes fatal.
Avoid applying other skin ointments in the same area where you have applied cinchocaine.
Although cinchocaine topical ointment might not interfere with other oral drugs, please inform your doctor about any prescription drugs, over-the-counter medications, vitamins, minerals, and herbal products you are taking.
Cinchocaine should be stored in a closed container at room temperature, away from heat, moisture and direct light.
Importantly, cinchocaine should be stored away from the reach of children and toddlers to prevent accidental hazards.