Abstract

The gastrointestinal transit of liquid, pellet and tablet formulations was measured under fasted conditions in the domestic pig (n = 4) using the technique of gamma scintigraphy.

The mean times for 50% gastric emptying for liquid and pellet systems were 1.4 and 2.2 h, respectively; tablets emptied between 1.5 and 6.0 h. Total transit times were in the order of 50 h. These data conform well to published values for the transit of liquid and solid food materials in the pig. The times are much shorter than those previously published for the transit of solid dosage forms in the pig.

We conclude that the domestic pig would be a good model to study the gastrointestinal transit of pharmaceutical formulations and the absorption of drug compounds.

References

Adkin
,
D. A.
,
Davis
,
S. S.
,
Sparrow
,
R. A.
,
Huckle
,
P. D.
,
Phillips
,
A. J.
,
Wilding
,
I. R.
(
1995
)
The effects of pharmaceutical excipients on small intestinal transit
.
Br. J. Clin. Pharmacol.
 
39
:
381
387
.

Aoyagi
,
N.
,
Ogata
,
H.
,
Kaniwa
,
N.
,
Uchiyama
,
M.
,
Yasuda
,
Y.
,
Tanioka
,
Y.
(
1992
)
Gastric emptying of tablets and granules in humans, dogs, pigs and stomach-emptying-controlled rabbits
.
J. Pharm. Sci.
 
8
:
1170
1174
.

Davis
,
S. S.
,
Hardy
,
J. G.
,
Fara
,
J. W.
(
1986
)
Transit of pharmaceutical dosage forms through the small intestine
.
Gut
 
27
:
886
892
.

Davis
,
S. S.
,
Hardy
,
J. G.
,
Newman
,
S. P.
,
Wilding
,
I. R.
(
1992
)
Gamma scintigraphy in the evaluation of pharmaceutical dosage forms
.
Eur. J. Nucl. Med.
 
19
:
971
986
.

Devereux
,
J. E.
,
Newton
,
J. M.
,
Short
,
M. B.
(
1990
)
The influence of density on the gastrointestinal transit of pellets
.
J. Pharm. Pharmacol.
 
42
:
500
501
.

Dressman
,
J. B.
,
Yamada
,
K.
(
1991
)
Animal models for oral drug absorption
. In:
Welling
,
P. G.
,
Tse
,
F. L. S.
,
Dighe
,
S. V.
(eds)
Pharmaceutical Bioequivalence
, vol.
48
.
Dekker
,
New York
, pp
727
739
.

Fleming
,
S. E.
,
Arce
,
D.
(
1986
)
Using the pigtostudy digestion and fermentation in the gut
. In:
Tumbleson
,
M. E.
(ed.)
Swine in Biomedical Research
.
Plenum Press
,
New York
, p.
124
.

Gardner
,
N.
,
Haresign
,
W.
,
Spiller
,
R.
,
Farraj
,
N.
,
Wiseman
,
J.
,
Norbury
,
H.
,
Illum
,
L.
(
1996
)
Development and validation of a pig model for colon-specific drug delivery
.
J. Pharm. Pharmacol.
 
48
:
689
693
.

Gregory
,
P. C.
,
McFadyen
,
M.
,
Rayner
,
D. V.
(
1990
)
Pattern of gastric emptying in the pig: relation to feeding
.
Br. J. Nutr.
 
64
:
45
58
.

Hildebrand
,
H.
,
McDonald
,
F. M.
,
Windt-Hanke
,
E.
(
1991
)
Characterisation of oral sustained release preparations of iloprost in the pig model by plasma level monitoring
.
Prostaglandins
 
41
:
473
486
.

Hossain
,
M.
,
Abramowitz
,
W.
,
Watrous
,
B. J.
,
Szpunar
,
G. J.
,
Ayres
,
J. W.
(
1990
)
Gastrointestinal transit of nondisintegrating, nonerodible oral dosage forms in pigs
.
Pharm. Res.
 
7
:
1163
1166
.

Johansen
,
H. N.
,
Knudsen
,
Bach K. E.
,
Sandström
,
B.
,
Skjøth
,
F.
(
1996
)
Effects of varying content of soluble dietary fibre from wheat flour and oat milling fractions on gastric emptying in pigs
.
Br. J. Nutr.
 
75
:
339
351
.

Kararli
,
T. T.
(
1995
)
Comparison of the gastrointestinal anatomy, physiology and biochemistry of humans and commonly used laboratory animals
.
Biopharm. Drug Dispos.
 
16
:
351
380
.

Laplace
,
J. P.
,
Tomassone
,
R.
(
1970
)
Evacuation gastro-duodénale chez le porc
.
Ann. Zootech.
 
19
:
303
332
.

Larsen
,
F.
,
Jensen
,
Hamborg B.
,
Olesen
,
H. P.
,
Larsen
,
C.
(
1992
)
Multiple oral administration of a ketoprofen-dextran ester prodrug in pigs: assessment of gastrointestinal bioavailability by deconvolution
.
Pharm. Res.
 
9
:
915
919
.

Nimmo
,
W. S.
(
1989
)
Gastric emptying and anaesthesia
.
Can. J. Anaesth.
 
36
:
S45
S47
.

Perkins
,
A. C.
(
1999
) In:
Perkins
,
A. C.
,
Frier
,
M.
(eds)
Instrumentation, imaging, data analysis and display
.
Nuclear Medicine in Pharmaceutical Research
.
Taylor and Francis
,
London
pp
15
30
.

Potkins
,
Z. V.
,
Lawrence
,
T. L. J.
,
Thomlinson
,
J. R.
(
1991
)
Effects of structural and non-structural polysaccharides in the diet of the growing pig on gastric emptying rate and rate of passage of digesta to the terminal ileum and through the total gastrointestinal tract
.
Br. J. Nutr.
 
65
:
391
413
.

Rowan
,
A. M.
,
Moughan
,
P. J.
,
Wilson
,
M. N.
,
Maher
,
K.
,
Tasman-Jones
,
C.
(
1994
)
Comparison of the ileal and faecal digestibility of the dietary amino acids in adult humans and evaluation of the pig as a model animal for digestion studies in man
.
Br. J. Nutr.
 
71
:
29
42
.

Ruckebusch
,
Y.
,
Bueno
,
L.
(
1976
)
The effect of feeding on the motility of the stomach and small intestine in the pig
.
Br. J. Nutr.
 
35
:
397
405
.

Treacy
,
P. J.
,
Jamieson
,
G. G.
,
Dent
,
J.
(
1990
)
Pyloric motor function during emptying of a liquid meal from the stomach in the conscious pig
.
J. Physiol.
 
422
:
523
538
.

Weber
,
E.
,
Ehrlein
,
H.-J.
(
1998
)
Relationships between gastric emptying and intestinal absorption of nutrients and energy in mini pigs
.
Digest. Dis. Sci.
 
43
:
1141
1153
.

Wilding
,
I. R.
,
Davis
,
S. S.
,
Steed
,
K. P.
,
Sparrow
,
R. A.
,
Westrup
,
J.
,
Hempenstall
,
J. M.
(
1994
)
Gastrointestinal transit of a drug-resinate administered as an oral suspension
.
Int. J. Pharm.
 
101
:
263
268
.

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