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Generic name: chlorhexidine topical [klor-HEX-i-deen-TOP-i-kal]
Brand names: Antiseptic Skin Cleanser, Betasept, Biopatch, Calgon Vesta, ChloraPrep One-Step,… show all 11 brands
Drug Classes: Antiseptics and Germicides Mouth products and throat products

What is Dyna-Hex?

Chlorhexidine fights bacteria. Dyna-Hex can help cleanse skin injuries or surgeries to help avoid infections that arise as a result. Dyna-Hex can also be utilized in additional ways that have not been mentioned herein.

Side effects of Dyna-Hex

Chlorhexidine may cause an allergic reaction. This reaction is rare, but it can be serious.

Dyna-Hex can cause serious side effects. If you experience:

  • Severe burning, itching, or redness
  • Blistering or peeling
  • Skin rash or swelling;
  • Any other severe irritation to the treated skin.

Your side effects could range from minor to none at all. There may be additional side effects; to seek medical advice about them please speak to your physician directly or reach out to the FDA directly by dialing 1-800-FDA-1088 for reporting purposes.


Chlorhexidine may cause an allergic reaction, which can be severe and life-threatening. Seek emergency medical attention if you experience: hives or severe skin rash; wheezing or difficulty breathing; cold sweats; dizziness; swelling of the face, lips, throat, tongue, etc.

Before you take this drug

If you have an allergy to Dyna-Hex, then it is best not to use the product. If you are allergic to dyes, food, animals or medicine and would like to know whether Dyna-Hex could help treat them, consult your physician or pharmacist about whether using it is possible. There's no way of knowing whether Dyna-Hex could cause harm to an unborn baby; therefore it is best to notify your physician as soon as you become pregnant. As yet, no information exists regarding the effects of chlorhexidine on nursing babies. Should breastfeeding occur, notify your physician. Use Dyna-Hex with extreme caution with children younger than 2 months. This medicine can cause chemical burns or severe irritation in very young children.

How to take Dyna-Hex?

Do not exceed the recommended dosage or duration. Use the recommended dose and do not exceed it. Take it only as directed. Dyna-Hex should only be used on the skin. Before applying Dyna-Hex, rinse the skin. Only apply enough medicine to treat the affected area. This medicine should not be used on deep cuts, skin scrapes, or open wounds. Use only enough Dyna-Hex to treat the area. Rinse the area thoroughly with water after gently washing it. Use sparingly on large areas of skin. The contents of this medicine are not sterilized, although the product is manufactured under sterile conditions. The product can be contaminated by bacteria, which can spread an infection. To prevent contaminating your medication with bacteria:

  • Only use the swab or pad that comes with your medication.
  • If no applicator has been provided, use only cotton balls or cotton swabs as tools of application.
  • Do not touch either the bottle top or your skin with your fingertips.
  • Don't dilute your medicine with water.
  • Only use the applicator once. After one use, throw away the applicator.

If your symptoms don't improve or worsen while you are using Dyna-Hex, call your doctor. Store at room temperature away from moisture or heat and tight-seal when not using. Use the medicine only once if it is packaged in foil or another container that can be used for one time. Even if the medicine is still inside, throw it away after use. Save the medicine for a later date.

What happens if I miss the dose?

As soon as you recall a missed dose, take it immediately. If your next scheduled dosage is coming soon enough, skip any missed ones altogether; extra medication shouldn't be taken in an attempt to make up for missed ones.

What happens if I overdose?

Overdoses of Dyna-Hex are not dangerousShould anyone accidentally consume medications, seek emergency medical assistance immediately.You can also call Poison Help at 1-800-222-1222.

What should be avoided?

Avoid getting Dynahex into your ears, eyes, mouth, rectum or vagina. If it gets there anyways, wash with plenty of water immediately if this does happen. Do not use other medications on areas that you have treated with Dyna-Hex unless you are told to by your doctor. Avoid getting the medicine on your clothes or other fabrics. Use bleach only to wash fabrics that have been exposed to chlorhexidine. Otherwise, the medication may leave a permanent stain.

Interaction with other drug

Other drugs that you inject or take orally will not have any effect on the topically applied chlorhexidine. Many drugs interact with each other.Inform healthcare providers of all the medications, vitamins, and herbal treatments you are currently taking (including vitamins, supplements and herbal remedies).