Prescription Icon Prescription Required
IMPORTANT NOTE: A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.


Uniphyl is an oral pill consisting of a bronchodilator drug called theophylline anhydrous. We carry the brand choice of this medication in 400mg and 600mg. 

Uniphyl is used to soothe symptoms of breathing conditions such as asthma, bronchitis, emphysema, and others. Asthma is one of the common lung diseases Uniphyl is used to treat. An asthma attack will occur when the airways of the lung become narrowed (which may occur due to spasms or allergens) which causes an obstruction to the flow of air. When the flow of air is disrupted, that’s when symptoms of wheezing and shortness of breath occur.

Uniphyl (theophylline anhydrous) is effective at treating symptoms of breathing conditions such as asthma because as a bronchodilator, it is able to relax the muscles in the airway to allow breathing passages to open up while also decreasing the lung’s response to irritants (like allergens).

Uniphyl should be taken exactly the way your doctor has prescribed it to you. Avoid taking more or less of a dose than directed or stopping treatment too soon or using the medication for a prolonged time. Do not share this medication with others.

Swallow the tablet whole and avoid chewing or crushing. If the tablet it scored, you may break it in half to get the correct dose. If you become ill or if a child looses weight during treating, you will need a dose change.

Store this medication in room temperature away from moisture, heat, and light.


Do not use Uniphyl (theophylline anhydrous)

Do not use Uniphyl if you are allergic to theophylline anhydrous.

Do not give this medication to a child unless recommended by a doctor.

Dose adjustment or special precautions may be required

To determine if this medication is safe for you, tell your doctor about all your medical conditions, especially if you have ever had a gastric or peptic ulcer, a serious infection called sepsis, liver disease, fluid in the lungs, heart problems, a thyroid disorder, seizures, or kidney disease.

If you drink alcohol or smoke/recently quit smoking cigarettes or marijuana; let your doctor know before starting treatment.

If you have had a fever higher than 102 degrees for longer than a day; tell your doctor before starting treatment.


Tell your doctor if you are pregnant or breast feeding. You will need to go over the risks and benefits of using this drug during those specific times.

This medication is not a fast acting medication and should not be used to treat an acute attack of any breathing problems. Ask your doctor about a fast relief medication to have on you as well as this one.

Side Effects

Common side effects of Uniphyl (theophylline anhydrous) may include:

nausea, vomiting, diarrhea; headache; sleep problems (insomnia); tremors; sweating; or feeling restless or irritable.

The above side effects should not alarm you.

Serious side effects of Uniphyl (theophylline anhydrous) may include:

severe or continued vomiting; ongoing headache, trouble sleeping; rapid heartbeats; or a seizure.

If you have any of the above side effects, contact your doctor right away.

Please note this is not a complete list of side effects. Not everyone experiences side effects; they are not guaranteed. If you do have side effects and they become unmanageable, consult your doctor about alternate medications.

Contact your doctor if you notice signs of…

high blood sugar: increased thirst, increased urination, hunger, dry mouth, fruity breath odor, drowsiness, dry skin, blurred vision, and weight loss; or

low potassium: confusion, uneven heart rate, extreme thirst, increased urination, leg discomfort, or muscle weakness or limp feeling.


What if I overdose?

Contact emergency services right away if you notice signs such as severe nausea and vomiting, seizure, slow heart rate, weak pulse, or fainting. An overdose on this drug can be fatal or cause permanent brain damage. Overdose can occur when a single dose is too high; follow yours doctors directions closely.

What should I avoid if I am using this product?

Do not start or stop smoking while being treated with this medication without consulting a doctor first. Smoking changes the way your body uses theophylline, and you may need a dose adjustment.

What happens if I miss a dose?

Take the missed dose as soon as you remember or skip it if your next dose is approaching soon. Do not attempt to make up for a missed dose by doubling up on dosages.

What is the best way to store this medication?

This medication should be protected from heat, moisture, and light to avoid nullifying the medication. Keep away from children and small pets.

Call To Complete

Need Help?
Call Our CareTeam


Our CareTeam Member will guide you to complete your order