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Pharmacy Tech. skills in Drug Interactions


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Pharmaceutical drug Interactions

Mixing interactions

Phenytoin in D5W (5% dextrose): Phenytoin crystallizes almost immediately upon contact with D5W. The resulting solution contain little bits of white, filament-like matter.

 

Amphotericin B in normal saline: Reconstitution or addition of normal saline amphotericin may cause precipitation. The usual diluents for amphotericin B reconstitution is D5W.

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Heparin mixed with penicillin/gentamicin/hydrocortisone:
react with each other and get inactivated if their solutions are mixed before administration.

 

Genatamycin with Penicillin G, ampicillin, carbenicillin
: drug react with each other and get inactivated if their solution are mixed before administration.

 

Ceftrioxone with Calcium containing produc
ts (Ringer's solutions, and TPN solutions) reconstitution can cause particulate formation.

 

Total Parenteral Nutrition with drugs
: No drug into parenteral nutrition solutions, albumin, and blood plasma.
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