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Promalex M5mg/5ml

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Modern Pharmaceuticals Ltd.
Generic: Promethazine Hydrochloride
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descriptionSafety Advices
Promalex M may cause excessive drowsiness with alcohol.
Promalex M may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the develop... View More
Promalex M is probably safe to use during breastfeeding. Limited human data suggests that the drug does not represent any significant risk to the baby. ... View More
Promalex M may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Promalex M is probably safe to use in patients with kidney disease. Limited data available suggests that dose adjustment of Promalex M may not be needed... View More
Promalex M should be used with caution in patients with liver disease. Dose adjustment of Promalex M may be needed. Please consult your doctor.
descriptionMedical Overview


Promalex M used in the treatment of various allergic conditions like runny nose, sneezing, congestion, itching and watery eyes. It also treats nausea, v... View More

Uses of Promalex M

  • Nausea
  • Vomiting

Side effects of Promalex M

  • Dryness in mouth
  • Blurred vision
  • Headache
  • Dizziness

How to use Promalex M

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Promalex M may be taken wi... View More

How Promalex M works

Promalex M is an antiallergic medication. When your body is exposed to an allergen (pollen, animal dander, house dust etc.), it produces a chemical call... View More

What if you forget to take Promalex M?

If you miss a dose of Promalex M, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to you... View More

quick tipsQuick Tips
  • Promalex M helps treat nausea and vomiting.
  • It may also be used for the short-term treatment of sleeping difficulties (insomnia) in adults and as a sedative in children.
  • Use caution while driving or doing anything that requires concentration as Promalex M can cause dizziness and sleepiness.
  • Do not drink alcohol while taking this medication as it may cause increased sleepiness.
  • It may make your skin more sensitive to sunlight. Avoid exposing your skin to strong sunlight, use a sunscreen lotion or make sure your skin is protecte... View More
  • Do not take it for longer than 7 days. If your symptoms worsen or do not improve after 7 days, talk to your doctor.
  • Stop taking it at least three days before taking an allergy test as it can affect the test results.
descriptionBrief Description


Allergic conditions, Nausea and vomiting, Motion sickness, Insomnia


May be taken with or without food.

Adult Dose

Oral Allergic conditions Adult: As promethazine HCl: 25 mg at night, increase to 25 mg bid if necessary. Alternatively, 10-20 mg 2-3 times daily. P... View More

Child Dose

Oral Allergic conditions Child: As promethazine HCl: 2-5 yr 5-15 mg daily in 1 or 2 divided doses; >5-10 yr 10-25 mg daily in 1 or 2 divided doses... View More

Renal Dose

Renal impairment: Dose reduction may be required.


Patients in coma or suffering from CNS depression of any cause. Childn <2 yr. SC and intra-arterial admin. Concurrent use w/ or w/in 14 days of MAOI use... View More

Mode of Action

Promethazine, a phenothiazine derivative, blocks postsynaptic dopaminergic receptors in the brain and has a strong alpha-adrenergic blocking effect. It ... View More


Patient w/ asthma, bronchitis or bronchiectasis; severe coronary artery disease, narrow-angle glaucoma, epilepsy, bladder neck or pyloro-duodenal obstru... View More

Side Effect

Neuroleptic Malignant Syndrome (NMS); CV effects (e.g. bradycardia, tachycardia, transient HTN, hypotension; jaundice, blood dyscrasias, extrapyramidal ... View More


Masks ototoxicity of aminoglycoside antibiotics. May enhance the sedative effects of CNS depressants like alcohol, hypnotics, barbiturates and opioids. ... View More

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The information provided herein is accurate, updated and complete as per the best practices of the Company. Please note that this information should not... View More