Every single remedy ingredient in this natural combination eases constipation and its various related symptoms without slowing digestion or causing habituation.
• Bryonia alb - Relieves constipation with hard dry dark stools, especially in hot weather.
• Hydrastis - Applies when constipation leads to a sinking feeling in the stomach and a total loathing of food.
• Iris vers - Relieves irritating constipation with a constant urging to stool and a nauseating headache. 
• Nux vomica - Relieves constipation troubled by incomplete stools or a frequent ineffectual urging, and may be followed by diarrhea, especially if laxative use is in the picture.
• Podophyllum - Applies best when constipation alternates with diarrhea and causes gurgling bowels. 
• Sulphur - Eases frequent painful urging that may lead to diarrhea, much belching and abdominal pressure.

With this powerful combination and a little dietary diligence, constipation and all its fatiguing side effects should be avoidable. However, if symptoms persist, or you are trying to resolve a yellow phenolphthalein laxative habit, you should consult a professional.

Homeopathic Ingredients: Bryonia, Hydrastis, Iris vers, Nux vom, Podophyllum, Sulphur