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Preparation. Administration. Evidence.

IV Dilution &
Medication Reference

Search 255 medications, read preserved historical references, and inspect separately reviewed preparation statements. Full monograph updates remain pending.

Version 6.4Release date 2026-11-04For healthcare professionals

Protamine

Historical source. Current clinical review is incomplete. This monograph will be updated in the future.

Protamine (opens in a new tab)Original source URL: https://globalrph.com/dilution/protamine/ | Retrieved 2026-11-04

Source dates, location and integrity

This historical article is separate from the reviewed claim cards. Product formulations and source dates may differ.

Original source URL
https://globalrph.com/dilution/protamine/ (opens in a new tab)
Source date
Not established in the retrieved source
Retrieved
2026-11-04T19:47:24.858756+00:00
Source location
div.post-content
Packaged content SHA-256
632a8f7f5a38809d655e2b9c2dc43f157b79bdbc95c7b79bc76cb0c522f4ab04
Original response SHA-256
99bce68ad57199e75750b0472039ad31eb9454306cf0db2ab764adbcbebb98bb
Source body SHA-256
f76121af3b48b70abf2ae461935ad0d11cc0e892c281dae14b58236f9b35e3ee

Protamine

The authors make no claims of the accuracy of the information contained herein; and these suggested doses and/or guidelines are not a substitute for clinical judgment. Neither GlobalRPh Inc. nor any other party involved in the preparation of this document shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any user's use of or reliance upon this material. PLEASE READ THE DISCLAIMER CAREFULLY BEFORE ACCESSING OR USING THIS SITE. BY ACCESSING OR USING THIS SITE, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS SET FORTH IN THE DISCLAIMER.

Usual Diluents

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Standard Dilutions [Amount of drug] [Infusion volume] [Infusion rate]

Dilute 50 mg vial with 5 ml-sterile water (10mg/ml). Normally given undiluted.
May add to 25-50ml NS or D5W and infuse over 10-20 min.

[Too rapid administration can cause severe hypotensive and anaphylactoid reactions. Facilities to treat shock should be available.]

Stability / Miscellaneous

Treatment of heparin overdose: If immediate, give 1 mg (up to 1.5mg) IV for every 100u of heparin infused in preceding 2 hours. Give by slow IV injection (50mg over 10 minutes). Maximum of 50mg in any 10 minute period. May dilute with 25-50ml NS/D5W and infuse over 10-20 minutes.

Obtain PTT 5-15 minutes after protamine administration.

If 30 minutes to 1 hour have elapsed before starting protamine:
use 0.5 to 0.75 mg/100 u of heparin (in preceding 2 hours).

If > 2 hours have elapsed: use 0.25 to 0.375mg/ 100units. Symptoms of overdose of protamine include hypertension, and possible hemorrhage due to paradoxical anticoagulation with higher doses (eg > 100mg).

Source: [package insert]

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