Many factors can contribute to constipation and the need to take a laxative. A poor diet, not drinking enough fluids, and even taking certain medication can cause constipation. Senokot Syrup or generic Sennosides is an over-the-counter medication that will make it easier for you to have a bowel movement and avoid the risk of hemorrhoids from straining. The generic alternative is not manufactured by the company that makes the brand product.

Senokot Syrup contains Sennosides which work by keeping water in your intestines to help cause an increase in the frequency and strength of intestinal contractions so stools pass easier. Once you take Senokot Syrup, usually before bed, you should experience relief from your constipation within 6 to 12 hours.

If you have an intestinal obstruction, kidney disease, Crohn's disease, colitis, undiagnosed abdominal pain or severe dehydration, you should talk to your doctor before you take Senokot Syrup. You may experience mild side effects such as diarrhea, cramps or spasms, or some mild stomach pain. These side effects may be more likely to occur if you change your dosage.