guaifenesin and phenylephrine

Action and Spectrum

Drug Interaction

Adverse Reaction

Adverse drug reactions:  

Frequency Not Defined  

Tremor  

Weakness  

Insomnia  

Hallucinations  

Respiratory difficulty  

Headache  

Dizziness  

Anxiety  

Nervousness  

Restlessness  

Nausea  

Dysuria  

Pallor  

Rash  

Convulsions  

CNS depression  

Tachycardia  

Palpitations  

Arrhythmias  

Black Box Warning

Contraindication / Caution

Pregnancy / Lactation

Pregnancy warnings:    

Pregnancy Category: C 

Breastfeeding warnings: 

The release of the drug into the human breastmilk is known  

Pregnancy Categories:      

• Category A: Satisfactory and well-controlled studies show no risk to the fetus in the first trimester or the later trimester      
• Category B: No evidence shown of risk to the fetus found in animal reproduction studies, and there are not enough studies on pregnant women      
• Category C: Adverse effects on the fetus found with evidence in animal reproduction studies and no adequate evidence for a result in humans must take care of potential risks in pregnant women      
• Category D: There is adequate data available with sufficient evidence of human fetal risk from various platforms, but despite the potential risk, and used only in emergency cases for potential benefits      
• Category X: Drugs listed in this category outweigh risks over benefits. Hence these categories of drugs need to be avoided by pregnant women      
• Category N: There is no data available for the drug under this category     

Pharmacology

Adminstartion

Patient Information Leaflet

Patient Information Leaflet  

Generic Name: guaifenesin and phenylephrine 

Pronounciation: gwye-FEN-e-sin-and-FEN-il-EFF-rin 

Why do we use guaifenesin and phenylephrine? 

guaifenesin and phenylephrine belong to the class Decongestant and Expectorant used to treat Congestion with Mucus