PhenaVent LA (Oral)

Questions | Reviews *****

Phenavent LA

  Is Phenavent LA a generic for Entex LA
by Pat Jennings in Santa Fe Springs, CA, 10/05/2007

What Drug category is Phenavent LA in?

I was just wondering what Phenavent LA Drug category it was in. Because my OBY perscribed it to me and I am currently pregnant 3 qand a half months along. He gave me this medicine for a sinus inffection along with an antibiotic to get rid of it. But o...
by Stacy in CA, 12/02/2005

I am in A. A . is this ok for me to take?

  Hello, I am currently in in Alcoholics Anounomus, in my 9th month. The medication says it may contain alcohol. What should I do?
by Taleb in Orlando,FL, 12/21/2007

Severe dryness around eyes due to Phenavent LA?

I have been taking Phenavent LA for 5 days. I have noticed that the area around my eyes has become dry and flaky. I drink at least 8 glasses of water a day. Do you think that this is an allergic reaction to Phenavent LA or should I just drink more wat...
by Angela in Birmingham, AL, 02/23/2006

PhenaVent LA (Oral) Drug and Prescription Information

PhenaVent LA (Oral)

PhenaVent LA (Oral) Medication Classification


PhenaVent LA (Oral) Brandname

Guaifenex PSE 80, Guaifenex PSE 60, Guaifenex PSE 120, Crantex, Ami-Tex PSE, Pseudovent Ped, Sudal 60/500, Liquibid-D, Panmist LA, Panmist Jr, Prolex-D, Aquatab D, GFN 1200/Phenylephrine 40, Pseudovent, Medent LD

PhenaVent LA (Oral) is used for the Treatment

Treats stuffy nose and chest congestion caused by hay fever, colds, sinus problems, or flu.

When To Not Use PhenaVent LA (Oral)

You should not use this medicine if you have ever had an allergic reaction to any decongestant or cough medicine. You should not use this medicine if you have taken an MAO inhibitor such as Nardil®, Marplan®, Eldepryl®, or Parnate® within the past 14 days.

How Should You Use PhenaVent LA (Oral)

Capsule, Liquid Filled Capsule, Long Acting Capsule, Tablet, Long Acting Tablet, Coated Tablet, Liquid, Chewable Tablet

  • Your doctor will tell you how much of this medicine to use and how often. Do not use more medicine or use it more often than your doctor tells you to.
  • If you are using this medicine without a prescription, follow the instructions on the medicine label.
  • You may take your medicine with food or milk to avoid stomach upset.
  • To help loosen mucus or phlegm in the lungs, drink a glass of water after taking this medicine.
  • This medicine may make you restless. If you have trouble sleeping, take your medicine well before bedtime.
  • Chew the chewable tablet thoroughly before you swallow it, or you may let the chewable tablet melt slowly in your mouth. If you use any other kind of tablet or capsule, swallow it whole. Do not crush, break, or chew, unless the directions say you may break or open it.
  • Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup. You might need to shake the medicine before using it.
  • If a dose is missed:
  • If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.

Proper PhenaVent LA (Oral) Storage

Store PhenaVent LA (Oral) at room temperature away from sunlight and moisture unless otherwise stated by manufacturer's instructions or labelling. Keep PhenaVent LA (Oral) and all medications out of the reach of children.

What To Avoid While Using PhenaVent LA (Oral)

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Make sure your doctor knows if you are also using medicine to lower your blood pressure. It may not work properly if you also use a decongestant/expectorant.
  • Avoid using diet pills (Accutrim®, Dexatrim®) while using this medicine.
  • You should not use with an MAO inhibitor (Nardil®, Marplan®, Eldepryl®, or Parnate®).

PhenaVent LA (Oral) Warnings

  • If you are pregnant or breastfeeding, talk to your doctor before using this medicine.
  • Before using this medicine, let your doctor know if you have heart disease, asthma, high blood pressure, diabetes, liver disease, glaucoma, disorder of the urinary tract, or an overactive thyroid.
  • This medicine might contain phenylalanine (aspartame). This is only a concern if you have a disorder called phenylketonuria (a problem with amino acids). Talk to your doctor before using this medicine.
  • This medicine might contain alcohol or sodium (salt). If you are not sure what is in the medicine and you are concerned, ask your pharmacist.
  • Children may be more sensitive to this medicine than adults, especially if too much medicine is used. Always read medicine labels closely and give your child the right amount. If you are not sure how much medicine to use, ask your pharmacist.

PhenaVent LA (Oral) Side Effects

Call your doctor right away if you notice any of these side effects:

  • Fast, pounding, or irregular heartbeat
  • Severe headache
  • Trouble breathing
  • Skin rash, hives, or itching
  • If you notice these less serious side effects, talk with your doctor:
  • Restlessness
  • Stomach upset
  • Trouble sleeping
  • Irritability

PhenaVent LA (Oral) Ratings

Overall Rating:



(based on 1 review)



Ease of Use:


Overall Satisfaction:




PhenaVent LA (Oral)

Effectiveness: *****

Ease of Use: *****

Overall Satisfaction: *****


Louise, magalia, ca - 12/17/2015

Is this medication still being manufactured? I was at my doctors office today to get a refill from 2009 from my allergist. My current doctor said that this medication was no longer made. Please advise....thank you