What is Histex: Uses, Warnings & Interactions

Your doctor will tell you how much medicine to use. Do not use more than directed.

Follow the instructions on the medicine label if you are using this medicine without a prescription.

Drink plenty of fluids.

You may take this medicine with food to lessen stomach upset.

Swallow the extended-release tablet, extended-release capsule, or liquid-filled capsule whole. Do not crush, chew, or break it.

The chewable tablet must be chewed completely before you swallow it.

Make sure your hands are dry before you handle the disintegrating tablet. Peel back the foil from the blister pack, then remove the tablet. Do not push the tablet through the foil. Place the tablet in your mouth. After it has melted, swallow or take a drink of water.

Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup. You might need to shake the medicine before using it.

You may take this medicine with food to lessen stomach upset.

Make sure your hands are dry before you handle the disintegrating tablet. Peel back the foil from the blister pack, then remove the tablet. Do not push the tablet through the foil. Place the tablet in your mouth. After it has melted, swallow or take a drink of water.

The chewable tablet must be chewed completely before you swallow it.

Swallow the extended-release tablet, extended-release capsule, or liquid-filled capsule whole. Do not crush, chew, or break it.

Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup. You might need to shake the medicine before using it.

Your doctor will tell you how much medicine to use. Do not use more than directed.

Follow the instructions on the medicine label if you are using this medicine without a prescription.

Drink plenty of fluids.

You should not use two doses at the same time.

May be taken as soon as possible.

Skip the missed dose if it is almost time for your next dose.

You should not use this medicine if you have had an unusual or allergic reaction to Chlor-Trimeton®, Dimetane®, Polaramine®, Actifed®, Tavist® or other antihistamines. You should not use this medicine if you have taken Furoxone®, Marplan®, Eutonyl®, Nardil®, or Matulane® within the last 2 weeks. Do not give any over-the-counter (OTC) cough and cold medicine to a baby or child under 4 years old. Using these medicines in very young children might cause serious or possibly life-threatening side effects.

This medicine may cause drowsiness. If it does, avoid driving a car or using machinery.

This medicine may cause a skin rash when you are out in the sun. Use a sunscreen when you are outside, and try not to spend long periods in direct sunlight.

Ask your doctor before taking this medicine if you are pregnant or breastfeeding, or if you have glaucoma or trouble urinating.

This medicine might contain phenylalanine. This is only a concern if you have a disorder called phenylketonuria (a problem with amino acids). Talk to your doctor before using this medicine.

Side effects of this medicine may occur more frequently in young children and older adults.

Some antihistamine syrups contain alcohol.

Avoid drinking alcohol while taking this medicine.

Avoid taking this medicine with other antihistamines.

Make sure your doctor knows if you are taking any medicine that makes you sleepy, such as sedatives, narcotic pain killers, or antidepressants while you are receiving this medicine.

Some antihistamine syrups contain alcohol.

This medicine may cause drowsiness. If it does, avoid driving a car or using machinery.

This medicine may cause a skin rash when you are out in the sun. Use a sunscreen when you are outside, and try not to spend long periods in direct sunlight.