Theophylline
Theophylline, also known as dimethylxanthine, is a methylxanthine drug used in therapy for respiratory diseases such as COPD or asthma under a variety of brand names. Due to its numerous side-effects, these drugs are now rarely administered for clinical use. As a member of the xanthine family, it bears structural and pharmacological similarity to caffeine. It is naturally found in tea, although in trace quantities (~1 mg/L),[1] significantly less than therapeutic doses.[2
Side effects
The use of theophylline is complicated by the fact that it interacts with various drugs, chiefly cimetidine and phenytoin, and that it has a narrow therapeutic index, so its use must be monitored to avoid toxicity. It can also cause nausea, diarrhea, increase in heart rate, arrhythmias, and CNS excitation (headaches, insomnia, irritability, dizziness and lightheadedness) [10][11]. Its toxicity is increased by erythromycin, cimetidine, and fluoroquinolones, such as "cipro" (ciprofloxacin). It can reach toxic levels when taken with fatty meals, an effect called dose dumping.[12]
shizandrol A is the liver protector
* anticonvulsive
* antihelminthic
* anti-inflammatory
* adaptogenic
* nervous system stimulant
* protects liver
* sedative
* tonic
* tumor-protecting
* uterine stimulant