Venlafaxine Flashcards

1
Q

What is another name for Venlafaxine

A

Effexor

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2
Q

The compound make of Venlafaxine

A

Big SERT

Small net -

“Dual action

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3
Q

How does venlafaxine work

A

It is suppose to increase both Serotonin and NE via transport inhibition.

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4
Q

What is another role of NET inhibition

A

increase dopamine in the PFC

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5
Q

Two major side effects of Venlafaxine

A

High blood pressure

Sweating

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6
Q

Why is Venlafaxine often given as an XR

A

You can take one day

Decreases GI side effects

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7
Q

How should we d/c Venlafaxine

A

We need to titrate down slowly, since it has such a short half life

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8
Q

Indicators for Venlafaxine

A

MDD

GAD

SAD

Panic

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9
Q

When should we expect a response

A

2 - 4 weeks

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10
Q

When should we consider dose changes

A

6- 8 weeks of nothing

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11
Q

California Rocker Fuel

A

Mirtazapine added. Usually for lack of response

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12
Q

Tests?

A

Blood pressure initially and throughout

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13
Q

Side effects of Venlafaxine

A

HTN

Nausea, Diarrhea or lack of appetite

Sweating

Sexual dysfunction

Low sodium

SIADH

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14
Q

Therapeutic dosage of Venlafaxine for GAD

A

150 - 225 mg

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15
Q

Therapeutic dosage of Venlafaxine for MDD

A

75 mg - 225 mg

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16
Q

How to dose

A

Initial: 37.5 mg daily/ER
After 4 days: 75 mg until efficacy.

17
Q

Max dose for MDD

A

375 MG

18
Q

How to taper

A

50 % for 3 days

50 % for another 3 days

19
Q

How to dose with renal impariment

A

Decrease by 25-50 percent

20
Q

How to dose with Liver impairment

A

decrease by 50%

21
Q

When is venlafaxine use contraindicated :

A

Uncontrolled glaucoma

MAOI present