
Avil22.7 mg
Synovia Pharma PLC
Pheniramine Maleate is a first-generation (sedating) antihistamine used for the symptomatic relief of a variety of allergic conditions.
Pheniramine Maleate is a first-generation (sedating) antihistamine used for the symptomatic relief of a variety of allergic conditions. Established/labeled uses include:
Pheniramine Maleate is also used as an adjunct/symptomatic component in various multi-ingredient cold, flu, and allergy combination products (together with decongestants, analgesics, or antitussives) to relieve associated sneezing, runny nose, and watery eyes.
Injectable Pheniramine Maleate is sometimes used, under medical supervision, as an adjunct in the management of acute allergic reactions, in addition to first-line treatments such as epinephrine; it is not a substitute for epinephrine in anaphylaxis.
| Indication | Route | Typical Adult Dose |
|---|---|---|
| Allergic rhinitis, urticaria, pruritus | Oral | 25 mg (1 tablet) of Pheniramine Maleate two to three times daily, or as directed by a physician |
| Acute allergic reaction (adjunct) | Intramuscular/slow IV | Usually one ampoule (22.75 mg/mL, 2 mL) of Pheniramine Maleate as a single dose, repeated only as directed by a physician |
| Allergic conjunctivitis | Ophthalmic (combination drops) | 1-2 drops of a Pheniramine Maleate combination product in the affected eye(s) up to 4 times daily, or as directed |
Pediatric oral dosing of Pheniramine Maleate is weight/age-based and should be determined by a physician; consult product labeling for age-specific liquid/syrup dosing. Pheniramine Maleate is contraindicated in newborn and premature infants (see Contraindications).
No well-established formal dose-adjustment guidelines exist for renal or hepatic impairment; such patients should use Pheniramine Maleate cautiously and under medical supervision, since reduced clearance may increase sedative and anticholinergic effects.
Start at the lower end of the dosing range when using Pheniramine Maleate in elderly patients due to increased sensitivity to anticholinergic and sedative effects (see Use in Special Populations).
The most common side effect of Pheniramine Maleate is sedation/drowsiness, which is prominent with this first-generation antihistamine. Other side effects may include:
In children, Pheniramine Maleate may occasionally cause paradoxical excitation (restlessness, irritability, insomnia) rather than sedation.
Seek prompt medical attention for signs of a serious allergic reaction (rash, swelling of the face/lips/tongue, difficulty breathing) after taking Pheniramine Maleate.
Pheniramine Maleate is contraindicated in:
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The information provided is accurate to the best of our knowledge, but it does not replace professional medical advice. We cannot guarantee its completeness or accuracy, and the absence of specific information about a drug should not be taken as an endorsement. We are not responsible for any consequences arising from this information, so please consult a healthcare professional for any concerns or questions.