Phenylephrine HCL 10mg is a medication used as a temporary treatment for nasal congestion caused by hay fever, cold and allergies, notes WebMD. It is also helpful in relieving sinus congestion and pressure. This medication works by reducing swelling in the ears and nose, thereby improving breathing and minimizing discomfort. Doctors prescribe phenylephrine to adults and children above 12 years old.
Adults and children above the age of 12 should take one tablet every four hours, according to Drugs.com. It is inadvisable to take more than six tablets within 24 hours. Children under the age of 12 should not use this product. Patients suffering from diabetes, heart disease, hypertension, thyroid disease or have an enlarged prostate gland should consult a doctor before using this medication. Pregnant and breastfeeding women should seek advice from a health professional prior to using phenylephrine.
Patients should take the tablets by mouth with or without food as advised by a health professional, notes WebMD. Taking phenylephrine with food helps to reduce stomach upset. It is sensible to inform the doctor about any current medications to avoid possible drug interactions. Improper use of phenylephrine can lead to several side effects such as seizures and hallucinations, says WebMD. Doctors recommend stopping use if dizziness, nervousness or sleeplessness occur.