Pheniramine

Source: Wikipedia, the free encyclopedia.
Pheniramine
Clinical data
AHFS/Drugs.comInternational Drug Names
Pregnancy
category
  • AU: A
intravenous); topical (ophthalmic/nasal solution)
ATC code
Pharmacokinetic data
MetabolismHepatic hydroxylation, demethylation and glucuronidation
Elimination half-life16 - 19 hrs (oral), 8 - 7 hrs (i.v.)[1]
ExcretionRenal
Identifiers
  • N,N-Dimethyl-3-phenyl-3-pyridin-2-yl-propan-1-amine
JSmol)
  • n1ccccc1C(c2ccccc2)CCN(C)C
  • InChI=1S/C16H20N2/c1-18(2)13-11-15(14-8-4-3-5-9-14)16-10-6-7-12-17-16/h3-10,12,15H,11,13H2,1-2H3 checkY
  • Key:IJHNSHDBIRRJRN-UHFFFAOYSA-N checkY
  (verify)

Pheniramine (trade name Avil among others) is an

eyedrops used for the treatment of allergic conjunctivitis
.

It was patented in 1948.[2] Pheniramine is generally sold in combination with other medications, rather than as a stand-alone drug, although some formulations are available containing pheniramine by itself.

Side effects

Pheniramine may cause drowsiness or Tachycardia, and over-dosage may lead to sleep disorders.[citation needed]

Overdose may lead to

seizures, especially in combination with alcohol.[citation needed
]

People combining with cortisol in the long term should avoid pheniramine as it may decrease levels of adrenaline (epinephrine) which may lead to loss of consciousness.[citation needed]

Pheniramine is a

chlorpheniramine.[citation needed
]

Chemical relatives

Halogenation of pheniramine increases its potency 20-fold. Halogenated derivatives of pheniramine include chlorphenamine, brompheniramine, dexchlorpheniramine, dexbrompheniramine, and zimelidine. Two other halogenated derivatives, fluorpheniramine and iodopheniramine, are currently in use for research on combination therapies for malaria and some cancers. [citation needed]

Other analogs include diphenhydramine, and doxylamine.

Stereoisomerism

Pheniramine contains a stereocenter and can exists as either of two

racemate, an equal mixture of the (R)- and (S)-forms.[3]

Enantiomers of pheniramine

(R)-Pheniramine
CAS number: 56141-72-1

(S)-Pheniramine
CAS number: 23201-92-5

See also

References

External links