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Senna
Brand Name(s):
Black-Draught Lax-Senna, Correctol Herbal Tea, Dosaflex, Dr. Caldwell Senna Laxative, Ex-Lax, Fletcher's Castoria, Senexon, Senna-Gen, Senokot, Senolax, X-Prep Liquid
Drug Class:
Laxative
Available OTC?: Yes
Available Generic?: No

Senokot 8.6 mg
(Purdue Frederick)
Available In
Why Prescribed
How It Works
Range and Frequency
Onset of Effect
Duration of Action
Dietary Advice
Storage
Missed Dose
Stopping the Drug
Prolonged Use
Over 60
Driving and Hazardous Work
Alcohol
Pregnancy
Breast Feeding
Infants and Children
Special Concerns
Overdose Symptoms
What to Do
Drug Interactions
Food Interactions
Disease Interactions


Available In
Tablets, granules, oral solution, syrup

Why Prescribed
For short-term treatment of constipation.

How It Works
Senna stimulates water and electrolyte (Mineral salt) secretion in the intestine to induce defecation.

Range and Frequency
Adults and teenagers: 2 tablets, or 1 teaspoon of granules, or 10 to 15 ml of syrup. Children ages 6 to 12: 1 tablet or 1/2 teaspoon of granules. The medicine should be given at bedtime.

Onset of Effect
Within 6 to 10 hours.

Duration of Action
Variable.

Dietary Advice
Each dose of senna should be taken on an empty stomach with a full glass (8 oz) of water or fruit juice.

Storage
Store in a tightly sealed container away from heat, moisture, and direct light.

Missed Dose
Take it as soon as you remember. If it is near the time for the next dose, skip the missed dose and resume your regular dosage schedule. Do not double the next dose.

Stopping the Drug
Take senna as prescribed for the full treatment period. However, you may stop taking the drug if you are feeling better before the scheduled end of therapy.

Prolonged Use
If regular bowel movement does not resume in 1 week, discontinue use of senna and consult your doctor.

Over 60
Adverse reactions may be more likely and more severe in older patients.

Driving and Hazardous Work
Do not drive or engage in hazardous work until you determine how the medicine affects you.

Alcohol
Avoid alcohol.

Pregnancy
Senna may cause unwanted effects during pregnancy if not used properly. Consult your doctor for specific advice.

Breast Feeding
Senna may pass into breast milk; caution is advised. Consult your doctor for advice.

Infants and Children
Senna is not recommended for use by children under the age of 6 unless it has been prescribed by a doctor.

Special Concerns
You should increase your intake of foods containing Vitamin D, such as milk products, and maintain an adequate intake of foods containing folic acid, such as fresh vegetables, fruits, whole grains, and liver, while taking senna. Do not take any other medicine within 2 hours of taking senna. Senna is one of the most effective laxatives for relieving constipation caused by narcotic analgesics like morphine and codeine.

Overdose Symptoms
Sudden vomiting, nausea, diarrhea, or cramping.

What to Do
An overdose of senna is unlikely to be life-threatening. However, if someone takes a much larger dose than prescribed, call your doctor, emergency medical services (EMS), or the nearest poison control center immediately.

Drug Interactions
Consult your doctor for specific advice if you are taking anticoagulants, digitalis drugs, ciprofloxacin, etidronate, sodium polystyrene sulfonate, or oral tetracyclines.

Food Interactions
No known food interactions.

Disease Interactions
Caution is advised when taking senna. Consult your doctor if you have a history of any of the following: appendicitis, rectal bleeding of unknown cause, colostomy, intestinal blockage, ileostomy, diabetes, heart disease, high blood pressure, kidney disease, or difficulty swallowing.


Date Published: 4/14/2005
Date Reviewed: 5/23/2005


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Serious

Confusion, irregular heartbeat, muscle cramps, pink to red or yellow to brown coloration of urine and stools, unusual tiredness or weakness, laxative dependence. Call your doctor immediately.
Common

Belching, cramping, diarrhea, nausea.
Less Common

No less-common side effects have been reported.
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