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The active medicine quickly evaporates from the tablet and the patient should observe the following conditions to ensure continued potency of the tablets.
If the patient does not use the tablets within 8 weeks of first opening the bottle, obtain a fresh supply and return the old tablets to the pharmacist. (Fresh tablets should produce a slight burning sensation when placed under the tongue; if this does not occur, obtain a fresh supply). In any event do not use the tablets after the expiry date shown.
The Glyceryl Trinitrate tablets will be in a glass airtight container with a foil-lined cap. Keep them in this.
After each use close the bottle cap tightly.
Do not put cotton wool, other medicines, or anything else in the bottle with the tablets.
Store the tablets below 25°C in a dry place, protected from light. If the patient needs to carry them with him/her do not carry them close to the body, rather in a purse, wallet or handbag.
Medicines should not be disposed of via wastewater or household waste. Ask the pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.
