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Dear Customer
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What is senna plus ?
senna plus is medication that derived from natural sources , and its used medically as a laxative medication that increase and induce bowel movement 
What are the side effects of senna plus ? 
1. nausea 
2. vomiting 
3. stomach pain
4. rectal bleeding 
Can you take senna plus on long term ?
its highly unrecommanded to use senna plus or any laxative medication on the long , as for senna plus , its recommanded only to use it for 2 weeks at most , and the main cause that your bowel intestine may have movement dysfunction that lead to totally dependancy on this medication , which also may lead later to other possible medical condition
Our advice :
1. besides the current treatment and life style steps into treating constipation , consider consulting an internist to find out the main cause and the best possible side effects 
2. dont use this medication that long , and reconsult your doctor about how to stop taking it 
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Kind Regards