How to take tablets and capsules promethazine

How to take tablets and capsules

How to take tablets and capsules promethazine Always take your promethazine tablets or capsules with a drink of water. Swallow them whole. Do not chew them.

How to take tablets and capsules  promethazine

How to take liquid

Liquid medicines containing promethazine come with a plastic syringe or spoon to help you measure out the right dose.

If you do not have a syringe or spoon, ask your pharmacist for one. Do not use a kitchen teaspoon as you will not get the right amount.

What if I forget to take it?

For motion sickness, take it as soon as you remember.

For anything else, skip the missed dose and take your next dose at the usual time.

Never take 2 doses at the same time. Never take an extra dose to make up for a forgotten one.

If you often forget doses, it may help to set an alarm to remind you. You could also ask your pharmacist for advice on other ways to help you remember to take your medicine.

What if I take too much?

Too much promethazine can be dangerous.

If you take more than your usual dose, you may:

  • feel very sleepy
  • have a very fast, irregular or pounding heartbeat (palpitations)
  • have breathing problems

In serious cases, you can become unconscious or have seizures or fits and may need emergency treatment in hospital.

If your child takes too much promethazine, they may also:

  • move unsteadily or stumble
  • have uncontrolled movements, especially in their hands or feet
  • see or hear things that are not there (hallucinations)
  • have an irregular heartbeat

Urgent advice:Contact 111 for advice if:

  • you take more than your usual dose of promethazine

Go to or call 111

If you need to go to A&E do not drive yourself. Get someone else to drive you or call for an ambulance.

Take the promethazine packet or leaflet inside it, plus any remaining medicine, with you.

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