T-PHYL
Key points
- THE FOLLOWING INFORMATION IS INTENDED TO SUPPLEMENT, NOT SUBSTITUTE FOR, THE EXPERTISE AND JUDGMENT OF YOUR PHYSICIAN, PHARMACIST OR OTHER HEALTHCARE PROFESSIONAL.
- T-PHYL improves breathing by opening air passages in the lungs.
- T-PHYL works best when taken on an empty stomach one hour before or two hours after meals.
- Dizziness, headache, lightheadedness, heartburn, stomach pain, loss of appetite, restlessness, nervousness, sleeplessness or increased urination may occur as your body adjusts to the medication.
IMPORTANT NOTE:
THE FOLLOWING INFORMATION IS INTENDED TO SUPPLEMENT, NOT SUBSTITUTE FOR, THE EXPERTISE AND JUDGMENT OF YOUR PHYSICIAN, PHARMACIST OR OTHER HEALTHCARE PROFESSIONAL. IT SHOULD NOT BE CONSTRUED TO INDICATE THAT USE OF THE DRUG IS SAFE, APPROPRIATE, OR EFFECTIVE FOR YOU. CONSULT YOUR HEALTHCARE PROFESSIONAL BEFORE USING T-PHYL.
XANTHINE DERIVATIVES - ORAL
COMMON BRAND NAME(S):
Choledyl, Quibron T, Slo-Bid, Slo-Phyllin, Theo-Dur, Theobid, Theolair
USES:
T-PHYL improves breathing by opening air passages in the lungs. It is used in the treatment of asthma, chronic bronchitis, and emphysema.
HOW TO TAKE T-PHYL:
T-PHYL works best when taken on an empty stomach one hour before or two hours after meals. If stomach upset occurs, it may be taken with food. Long acting capsules and tablets must be swallowed whole. Crushing or chewing them may destroy the long action and increase the possibility of side effects. If capsules are too large to swallow, open the capsule and mix the contents with jelly or applesauce and swallow without chewing. T-PHYL works best if a constant level is maintained in the body. Do this by taking doses at evenly spaced intervals.
SIDE EFFECTS:
Dizziness, headache, lightheadedness, heartburn, stomach pain, loss of appetite, restlessness, nervousness, sleeplessness or increased urination may occur as your body adjusts to the medication. If these symptoms persist or worsen, inform your doctor. Inform your doctor if you experience:
chest pain, rapid or irregular heartbeat, confusion, severe stomach pain, breathing difficulties. If you notice other effects not listed above, contact your doctor or pharmacist.
PRECAUTIONS:
Avoid drinking large amounts of beverages containing caffeine (coffee, tea, colas) or eating large amounts of chocolate. Caffeine can increase side effects of T-PHYL. Smoking affects T-PHYL. Be sure to tell your doctor if you smoke or use nicotine. Inform your doctor if you stop smoking. Your dose may need to be adjusted. T-PHYL should be used during pregnancy only if clearly needed. Because small amounts of T-PHYL appear in breast milk, consult with your doctor before breast-feeding. Tell your doctor your complete medical history especially if you are taking medicine (beta-blockers) for high blood pressure.
DRUG INTERACTIONS:
Inform your doctor about all the medicines you use (both prescription and nonprescription), especially if you take:
cimetidine, erythromycin, troleandomycin, mexiletine, tacrine, barbiturates, disulfiram, rifampin, thiabendazole, birth control pills, rifabutin, ticlopidine, quinolone antibiotics, beta-blockers, phenytoin, fluvoxamine (an SSRI antidepressant). Do not start or stop any medicine without doctor or pharmacist approval.
Written and revised by
David Cohen, M.D.
Our doctors write and review articles for accuracy and keep them up to date.
health.am provides general information, not medical advice. Always consult a qualified health professional about your own health.

