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Related to senna: Ayrton Senna


the dried leaflets of Cassia acutiflora; used in a syrup, fluid extract, or compound powder as a cathartic.

senna, sennosides

Argoral (CA), Black Draught, Ex-Lax Gentle, Fleet Pedia-Lax Quick Dissolve, Fletcher's, Maximum Relief Ex-Lax, Nu-Lax (CA), Perdiem, Senexon, Senna-Gen, Sennatural, Senokot, Senokot Granules, SenokotXTRA, Senolax, Sure-Lax (UK)

Pharmacologic class: Anthraquinone laxative

Therapeutic class: Laxative (stimulant)

Pregnancy risk category C


Causes local irritation in colon, which promotes peristalsis and bowel evacuation. Softens feces by increasing water and electrolytes in large intestine.


Granules: 15 mg/tsp

Liquid: 8.8 mg/5 ml, 25 mg/5 ml, 33.3 mg/ml (concentrate)

Tablets: 8.6 mg, 10 mg, 15 mg, 17 mg, 25 mg

Strips (orally disintegrating): 8.6 mg

Tablets (chewable): 10 mg, 15 mg

Indications and dosages

Acute constipation; preparation for bowel examination

Adults and children ages 12 and older: For acute constipation, 12 to 50 mg P.O. daily or b.i.d. For bowel preparation, 105 to 157.5 mg (concentrate) 12 to 14 hours before scheduled procedure.

Children ages 6 to 11: 50% of adult dosage. Or, two orally disintegrating strips; don't exceed four strips in 24 hours.

Children ages 2 to 5: 33% of adult dosage. Or, one orally disintegrating strip; don't exceed two strips in 24 hours.


• Hypersensitivity to drug or its components

• GI bleeding or obstruction

• Suspected appendicitis or undiagnosed abdominal pain

• Acute surgical abdomen

• Fecal impaction

• Inflammatory bowel disease (such as Crohn's disease)


Use cautiously in:

• pregnant or breastfeeding patients

• children.


• Give with a full glass of cold water.

• To prepare patient for bowel examination, give 12 to 14 hours before procedure, followed by a clear liquid diet.

Adverse reactions

GI: nausea, vomiting, diarrhea, abdominal cramps, nutrient malabsorption, yellow or yellowish-green feces, loss of normal bowel function (with excessive use), dark pigmentation of rectal mucosa (with long-term use), protein-losing enteropathy

GU: reddish-pink discoloration of alkaline urine, yellowish-brown discoloration of acidic urine

Metabolic: electrolyte imbalances (such as hypokalemia)

Other: laxative dependence (with long-term or excessive use)


Drug-diagnostic tests. Calcium, potassium: decreased levels

Patient monitoring

• Assess bowel movements to determine laxative efficacy.

• In long-term use, monitor fluid balance, nutritional status, and electrolyte levels and watch for laxative dependence.

Patient teaching

• Tell patient using drug for constipation to take at bedtime with a glass of water.

• Instruct patient to place orally disintegrating strips on the tongue, allow strip to dissolve, then drink plenty of water.

• In long-term use, advise patient to watch for and report signs and symptoms of nutritional deficiencies and fluid and electrolyte imbalance.

• If patient will undergo bowel examination, advise him to take drug 12 to 14 hours before procedure, followed by a clear liquid diet.

• As appropriate, review all other significant adverse reactions and interactions, especially those related to the tests mentioned above.


The dried leaflets or legumes of Cassia acutifolia (Alexandrine senna) and C. angustifolia (Tinnevelly or Indian senna); a laxative.
[Ar. senā]


/sen·na/ (sen´ah) the dried leaflets of Cassia acutifolia or C. angustifolia; used chiefly as a cathartic.


1. Any of various plants in the pea family, chiefly of the genera Senna and Chamaecrista, having pinnately compound leaves and showy, nearly regular, usually yellow flowers, used as ornamentals and for medicinal purposes.
2. A preparation of the dried leaves of Senna alexandrina, used as a laxative.


an herbal product taken from several Cassia species found across the world.
use It is used as a laxative.
contraindications It should not be used during pregnancy and lactation, in children less than 12 years of age (unless prescribed by physician), or in those with known hypersensitivity to this product. Senna is also prohibited in those with intestinal obstruction, ulcerative colitis, GI bleeding, appendicitis, acute surgical abdomen, nausea, vomiting, or congestive heart failure.


Herbal medicine
A shrub native to northern and eastern Africa, which contains emodin and anthraquinone glycosides (sennosides A and B); it is primarily used as a laxative.
In excess, senna may evoke nausea, vomiting and colic; it should not be used in pregnancy or in those who are nursing, or who have colitis, haemorrhoids or ulcers. Overuse may be associated with so-called lazy bowel syndrome.


A stimulant laxative drug used to treat constipation. The drug is on the WHO official list. A brand name is Senokot.

senna (seˑ·n),

n Latin name:
Senna alexandrina, Cassia spp.; part used: leaves; uses: presurgery laxative, acute constipation; precautions: pregnancy, lactation, children, intestinal obstruction, ulcerative colitis, nausea, vomiting, congestive heart failure; do not use longer than 7 to 14 days without consulting a doctor; cardiac glycosides, other laxatives. Also called
Alexandrian senna, black draught, Dr. Calwell dosalax, Fletcher's Castoria, Gentlax, Khartoum senna, or
tinnevelly senna.


plant genus in the legume family Caesalpiniaceae; contain anthraquinone glycosides which cause diarrhea; an unidentified toxin causes muscle necrosis. Includes S. floribunda, S. obtusifolia, S. occidentale, S. roemeriana. All also called Cassia spp., e.g. C. floribunda.


the dried leaflets of Cassia acutiflora; used in a syrup, fluid extract or compound powder as a cathartic.

senna bean
see cassiaoccidentalis.
coffee senna
see cassiaoccidentalis.
References in periodicals archive ?
Senna began his career in his native Brazil, but prior to coming to New York, he spent 11 seasons at Spanish side Villarreal CF, going on to the captain the club.
Current championship leader and 2008 champion Lewis Hamilton said: "People say I have an aggressive style and it's partly because I watched Ayrton Senna when I was young and I thought: This is how I want to drive when I get the opportunity.
To match him and receive this is the greatest honour, so a big, big thank you to the Senna family and everyone here.
While there wasn't a person in the paddock who hadn't been shaken by the day's events, three-time world champion Ayrton Senna seemed more distressed than most.
Hamilton, a two-time winner in Singapore, is also on the brink of emulating Senna by claiming a hat-trick of world titles after he extended his lead over Nico Rosberg to 53 points following his victory in Italy.
But Hamilton said that the relationship between him and Rosberg is 'essentially' like Senna and Prost's, adding that he is going to 'take a leaf out of Senna's book' and deal with the situation with Rosberg like the Brazilian did with Prost.
Senna cleared thousands of mines in Afghanistan, where she was used by the U.
Twenty years ago, Senna endured a fatal crash when his Williams FW16 crashed into the wall of the Tamburello corner of the Imola circuit at 305 kilometers an hour.
Yesterday marked 20 years since Senna lost his life following a crash at the San Marino Grand Prix, with fans and Formula One drivers past and present paying tribute to the Brazilian and also to Austrian driver Roland Ratzenberger, who was killed at the same track on April 30, 1994.
Senna was all of 34 when he died in a fatal accident while racing at the San Marino Grand Prix at the 190 mph Tamburello corner exactly 20 years ago to the day.
A 1992 Honda NSX owned by three times Formula One world champion Ayrton Senna is set to go under the hammer.
The shipwright has 30 years' sailing experience and steered Senna to second in Division 2 of the Audi IRC Championship in January.