Mequitazine

Mequitazine

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Mequitazine (Primalan) is an antihistamine and anticholinergic of the phenothiazine chemical class. It is used to treat allergies and rhinitis.

Contraindications

Severe liver disease; premature infants or full-term neonates .

Special Precautions

Pregnancy, lactation; severe CardioVascular disorders; asthma; angle-closure glaucoma, urinary retention, prostatic hyperplasia, pyloroduodenal obstruction; renal and hepatic impairment; elderly, children; epilepsy. May impair ability to drive or operate machinery.

Adverse Drug Reactions

CNS depression including slight drowsiness to deep sleep, lassitude, dizziness, incoordination. Headache, psychomotor impairment and antimuscarinic effects. Rarely, rashes and hypersensitivity reactions, blood disorders, convulsions, sweating, myalgia, paraesthesias, extrapyramidal effects, tremor, confusion, sleep and GI disturbances, tinnitus, hypotension, hair loss. Photosensitivity, jaundice.

Drug Interactions

Enhanced effects of CNS depressants e.g. alcohol, barbiturates, hypnotics, opioid analgesics, anxiolytic sedatives and antipsychotics. Can mask signs of ototoxicity caused by aminoglycosides. QT prolongation reported with spiramycin.

See also

References