Page 311 Acute Pain Management
P. 311




symptoms
and
disability
were
mild‐to‐moderate.
No
OTC
agent
was
found
to
be
superior.

However,
OTC
medications
are
only
indicated
in
migraineurs
with
mild‐to‐moderate
symptoms

(Wenzel
et
al,
2003
Level
I).

Triptans


Triptans
are
effective
in
the
treatment
of
acute
migraine,
particularly
in
the
presence
of
severe

pain
and
disability,
where
simple
analgesia
has
failed
to
provide
adequate
relief
in
the
past.
As

there
is
considerable
interindividual
response
to
the
different
triptans,
patients
should
trial
a

variety
of
drugs
and
doses
until
the
most
suitable
regimen
is
found
(Silberstein,
2000;
Oldman
et

al,
2002
Level
I).


The
route
of
administration
of
a
triptan
may
affect
its
efficacy,
speed
of
onset
and
tolerability.

SC
injections
and
nasal
sprays
provide
fast
onset
of
symptom
relief
and
higher
efficacy,

however
injections
are
less
well
tolerated
by
patients.
In
contrast,
oral
triptans
are
well

tolerated
but
have
a
slower
onset
of
action
and
lower
reliability
due
to
gastric
stasis
associated

with
migraine.
Therefore,
if
the
oral
route
is
used,
the
triptan
should
preferably
be
given
early

in
an
attack
(Dahlof,
2002).
Suppositories
are
well
tolerated
and
avoid
problems
with
oral

absorption.

Table
9.3
lists
commonly
prescribed
triptans
with
NNT
for
pain‐free
response
at
2
hours.



Table
9.3
 Table
of
triptans


Drug
 Route
 NNT
(95%
Confidence

intervals)
*

Sumatriptan
6
mg
 SC
 2.1
(1.9–2.4)

Rizatriptan
10
mg
 oral
 3.1
(2.9–3.5)

Eletriptan
80
mg
 oral
 3.7
(3.2–4.2)

Zolmitriptan
5
mg
 oral
 3.9
(3.4–4.6)

Eletriptan
40
mg

 oral
 4.5
(3.9–5.1)

Sumatriptan
20
mg

 IN
 4.6
(3.6–6.1)

Sumatriptan
100
mg
 oral
 4.7
(4.1–5.7)

Rizatriptan
2.5
mg
 oral
 4.7
(4.0–5.7)

Zolmitriptan
2.5
mg
 oral
 5.9
(4.5–8.7)
 CHAPTER
9

Sumatriptan
50
mg

 oral
 7.8
(6.1–11)

Naratriptan
2.5
mg
 oral
 8.2
(5.1–21)

Eletriptan
20
mg
 oral
 10
(7–17)

Aspirin
900
mg
plus
 oral
 8.6
(6.2–14)

metoclopramide
10
mg

*
 NNTs
to
provide
2‐hour
pain‐free
response
in
migraine
patient.

Source:
 Bandolier
(at
http://www.medicine.ox.ac.uk/bandolier);
reproduced
with
permission.

Comparative
randomised
trials
of
triptans
and
other
antimigrainals
do
not
give
a
clear
picture

of
relative
efficacy.
Oral
triptans
were
found
to
be
superior
to
oral
ergotamine
—
most
likely

because
the
bioavailability
oral
of
ergotamine
is
extremely
low
(<1%).
Of
the
nine
trials
that

met
the
inclusion
criteria
for
review,
six
compared
sumatriptan
(two
zolmitriptan
and
one

eletriptan)
with
other
migraine
treatments.
In
seven
of
the
nine
studies
reviewed,
differences

between
triptan
and
other
drugs
for
migraine
endpoints
were
not
dramatic.
Triptans
were
no

more
effective
than
nsNSAIDs
(and
in
most
cases
aspirin)
and
in
several
RCTs
they
produced



 Acute
pain
management:
scientific
evidence
 263

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