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Some of the older drugs available include anti-spasmodics, which are used to try to stop intestinal spasms and reduce pain, and anti-diarrheals such as Imodium. Anti-depressants can also be given to IBS sufferers in small doses to reduce pain.
I have labeled each medication as OTC (available over-the-counter) or prescription (only available through a doctor).
The medications are listed alphabetically in the menu on the left-hand side of the screen, and they are listed below by category. Medications labeled with 'United Kingdom' are generally only available in the UK.
A treatment for long-term constipation (prescription).
A treatment for constipation (prescription).
Lotronex (alosetron hydrochloride) is a drug for diarrhea-predominant IBS (prescription).
Zelnorm (tegaserod maleate) is for constipation-predominant IBS (prescription).
An anti-diarrheal medication which is also a painkiller (usually prescription, available in some countries as OTC in smaller doses).
The most widely available drug for short-term control of diarrhea (OTC).
A drug for treating diarrhea (prescription).
The famous pink liquid which can treat diarrhea and stomach discomfort (OTC).
Laxatives and stool softeners
Perhaps the best-known stool softener, containing docusate sodium (OTC).
A stimulant laxative containing bisacodyl (OTC).
A stimulant, senna-containing laxative (OTC).
A sugary syrup which can add water to the stool (prescription).
Milk of magnesia
A saline laxative which works by drawing water into the colon (OTC).
An osmotic laxative which comes in powder form (OTC).
Anti-spasmodic containing dicyclomine (prescription).
Hyoscine-N-butylbromide tablets (OTC) (United Kingdom).
Mebeverine hydrochloride tablets (OTC) (United Kingdom).
An anti-spasmodic containing pinaverium bromide (prescription).
An anti-spasmodic that contains phenobarbital, hyoscyamine, atropine and scopolamine (prescription).
An anti-spasmodic that contains mebeverine hydrochloride (prescription).
Anti-spasmodic containing hyoscyamine (prescription).
A combination of an anti-spasmodic and a sedative, chlordiazepoxide and clidinium bromide (prescription).
Hyoscyamine sulfate tablets (prescription).
Anti-depressants and anti-anxiety medications
The brand name for venlafaxine, a selective serotonin and norepinephrine reuptake inhibitor anti-depressant (prescription).
The brand name for amitriptyline, a tricyclic anti-depressant (prescription).
The brand name for paroxetine, an SSRI drug (prescription).
The brand name for sertraline, an SSRI drug (prescription).
Bile-absorbing and binding medications (often used after gallbladder removal)
Colestid is a powder which can absorb excess bile acid from the gut (prescription).
Questran is very similar to Colestid, and absorbs excess bile from the intestines (prescription).
Questran Light is the low-calorie version of Questran (prescription).
Welchol binds excess bile in the intestinal tract (prescription).
Heartburn/acid reflux medication
For recurring heartburn pain (prescription).