Read the side effects of Theophylline as described in the medical literature. In case of any doubt consult your doctor or pharmacist.
Nausea, vomiting, headache, and sleeplessness.
Abdominal pain, diarrhea and blood vomiting.
Decrease in blood potassium level and increase in sugar.
Fast heart rate and low blood pressure/shock.
Central Nervous System
Nervousness, tremors, disorientation and seizures.
Other Precautions :
* Avoid excess dosage.