ATNAA and Phenylhistine DH Expectorant

• Generic Name: atropine / pralidoxime
• Dosage Forms: injection
• Other Brand Names: ATNAA, DuoDote

Atropine blocks the action of a certain chemical that may reach high levels in the body after a poisoning. Atropine also stimulates the heart and reduces the secretions of the nose, mouth, and lungs to improve breathing.

Pralidoxime reverses muscle weakness or paralysis caused by a poison or nerve agent.

ATNAA is a combination medicine used as an antidote to treat poisoning by a pesticide (insect spray) or a chemical that interferes with the central nervous system, such as nerve gas.

ATNAA is not effective as an antidote for all types of pesticide poisonings. You may need medications or additional treatments.

ATNAA may also be used for purposes not listed in this medication guide.

• Generic Name: chlorpheniramine / codeine / pseudoephedrine
• Dosage Forms: n.a.
• Other Brand Names: Phenylhistine DH Expectorant, Tricode AR, Novahistine DH, Phenylhistine DH, Dihistine DH, Decohistine DH, Codehist DH, Novadyne DH, Co-Histine DH, Ryna-C, Codahistine-DH Elixir, Zodryl DAC

Chlorpheniramine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Codeine is a narcotic cough suppressant. It affects the signals in the brain that trigger cough reflex.

Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Phenylhistine DH Expectorant is a combination medicine used to treat runny or stuffy nose, sneezing, itching, watery eyes, cough, and sinus congestion caused by allergies, the common cold, or the flu.

Phenylhistine DH Expectorant will not treat a cough that is caused by smoking, asthma, or emphysema.

Phenylhistine DH Expectorant may also be used for purposes not listed in this medication guide.