Meds and you

27 September 2013

Acrivastine

Acrivastine is an antihistamine. Antihistamines are drugs that counter the effect of histamine, a substance released by the body in large amounts during an allergic reaction.

0

Acrivastine is the active ingredient of Semprex capsules (Nappi code: 792829-018).

General information

Acrivastine is an antihistamine. Antihistamines are drugs that counter the effect of histamine, a substance released by the body in large amounts during an allergic reaction.

In South Africa Acrivastine is registered for the treatment of seasonal allergies, allergic rhinitis, and allergic skin conditions.

Unlike many older antihistamines, acrivastine does not have strong sedative effects, meaning that you won’t feel drowsy after taking this drug. It may still cause drowsiness in a small percentage of those taking it.

How does acrivastine work?

When you are exposed to an allergen - something you are allergic to - your body reacts by producing a chemical called histamine. Histamine causes the symptoms that we associate with allergy. Acrivastine is an antihistamine, meaning that it counteracts the action of histamine to help relieve you of the symptoms of allergy.

Fast facts

Drug schedule: schedule 2

Available as: acrivastine is available as capsules.

What does it do? Acrivastine has anti-allergy properties.

Overdose risk: medium

Dependence risk: Low

Is acrivastine available as a generic? no

Is acrivastine available on prescription only? no

User information

Onset of effect: within 30 minutes

Duration of action: up to 8 hours

Dietary advice: this medication may be taken with or without food.

Stopping this medicine: this medication can be safely stopped when no longer needed

Special precautions

Consult your doctor before using this drug if:

  • you have glaucoma
  • you have porphyria
  • you have difficulty urinating
  • you have prostate problems
  • you have epilepsy
  • you have liver or kidney problems
  • you are pregnant
  • you are taking other medication

Pregnancy: avoid. It is unknown how this medication may affect your baby. Consult your doctor before using this drug, or if you are planning to fall pregnant.

Breastfeeding: avoid. It is unknown how this medication may affect your baby. Consult your doctor before using this drug, or if you are planning to fall pregnant.

Porphyria: avoid. This medication may cause serious adverse effects. Consult your doctor before use.

Infants and children: this medication is not recommended for use in children under the age of 12.

The elderly: caution is advised in the elderly, as side effects are more likely to occur.

Driving and hazardous work: in the rare event of this medication causing sedation, caution is advised.

Alcohol: avoid concomitant use of alcohol with this medication as it may increase sedation and other symptoms of central nervous system depression.

Possible side effects

 

Side effects Frequency   Consult your doctor  
  Common Rare Only if severe In all cases
headache x   x  
dry mouth, throat and nose   x x  
dizziness   x x  
drowsiness        
nausea/vomiting   x x  
confusion/hallucinations   x   x
convulsions   x   x
palpitation   x   x
jaundice   x   x

 

Interactions:

Drug interactions:

 

barbiturates potential for enhanced sedation
benzodiazepines potential for enhanced sedation
hypnotics potential for enhanced sedation
sedatives potential for enhanced sedation
bariturates potential for enhanced sedation

 

Disease interactions

Consult your doctor before using this drug if you have difficulty urinating, an enlarged prostate, glaucoma, sleep apnoea, liver disease, or if you have epilepsy.

Overdose action

An overdose of this medication can be serious. Seek immediate emergency medical attention. Symptoms may include seizure, extreme drowsiness and coma.

Recommended dosage

Adults: 8mg three times daily


 

This material is not intended to substitute medical advice, but is for informational purposes only.   Please consult a physician for specific treatment and recommendations.

 

 

 

Read Health24’s Comments Policy

Comment on this story
0 comments
Comments have been closed for this article.