FOLINIC ACID CALCIUM SALT PENTAHYDRATE Property

Melting point:

240-250 °C

storage temp. 

0-6°C

solubility 

Aqueous (Slightly, Sonicated), Water (Sparingly, Heated, Sonicated)

form 

Solid

color 

Off-White to Pale Yellow

Stability:

Hygroscopic

Safety

Safety Statements 

24/25

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P285In case of inadequate ventilation wear respiratory protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P341IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P342+P311IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.

P362Take off contaminated clothing and wash before reuse.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

FOLINIC ACID CALCIUM SALT PENTAHYDRATE Chemical Properties,Usage,Production

Uses

Anti-anemic (folate deficiency); antidote (to folic acid antagonists).

brand name

Wellcovorin (GlaxoSmithKline).

Clinical Use

Folinic acid rescue
Enhancement of 5-fluorouracil cytotoxicity in advanced colorectal cancer
Folate deficiency

Drug interactions

Potentially hazardous interactions with other drugs Should not be administered simultaneously with a folic acid antagonist as this may nullify the effect of the antagonist.
Cytotoxics: avoid with panitumumab and raltitrexed.

Metabolism

Folinic acid is a racemate where the L-form (L-5- formyl-tetrahydrofolate, L-5-formyl-THF), is the active enantiomer. The major metabolic product of folinic acid is 5-methyl-tetrahydrofolic acid (5-methyl-THF) which is predominantly produced in the liver and intestinal mucosa.
80-90% with the urine (5- and 10-formyltetrahydrofolates inactive metabolites), 5-8% with the faeces.