Cancer pain management

Syringe Driver Drug Combinations

To mix or not to mix compatibilities of parenteral drug solutions

For example, a patient with severe nausea and vomiting that temporarily prevents the use of oral medicines may need a syringe driver to gain control of symptoms. Hospices and residential aged care facilities are likely to have standardised prescribing and administration charts for syringe driver prescriptions. Since the majority of currently available compatibility and stability data refer to two-drug combinations, there is a disparity between available evidence and clinical practice. We will cover two common drug combinations that safely mix, one that does not and look at sources for checking compatibility of less common combinations. The mixing of drug salts of calcium, and to a lesser extent magnesium, with phosphates, carbonates, bicarbonates, tartrates or sulfates should also be avoided.

Syringe driver drug combinations

Used in vomiting associated with intestinal obstruction, raised intracranial pressure or hepatomegaly. In other cases, care needs to be taken to ensure that if the injection solution is diluted, the dilution is adequate to ensure continuing solubility over the duration of the infusion.

However, a small number of injection solutions are formulated in non-aqueous solvents to allow dissolution of a poorly water soluble substance in a small volume. Confusion without hallucinations. It is more robust than observational data, but is still not definitive as a solution may remain physically clear even when there is chemical incompatibility.

Doses can be prescribed in a flexible manner to achieve good symptom control, e. Continuous Subcutaneous Infusions in Palliative Care. Other common indications for using a syringe driver in palliative care include the treatment of nausea and vomiting, excessive respiratory secretions, and agitation or restlessness. Checking compatibility There are many source for checking drug compatibility in a syringe driver.

Only one of the five combinations appeared in the survey database oxycodone, glycopyrronium and levomepromazine and all comprised three drugs. Precipitation of drugs due to pH change upon mixing The water solubility of any drug is enhanced by ionisation of the molecule. Combinations that can be mixed Diamorphine, Midazolam, Hyoscine butyl bromide these might be given in combination to manage pain in a patient with terminal agitation and excess secretions.

Syringe Drivers
Setting up the syringe driver

Ionic reactions forming insoluble substances The salts of monovalent cations, such as sodium and potassium, are generally more soluble than those of divalent cations, such as calcium and magnesium. Monitoring the infusion Patients being cared for at home should ideally have a daily visit from a health professional for review of symptom control and monitoring of the infusion. Compatibility of morphine and midazolam or haloperidol in parenteral admixtures. Sterile water is compatible with most medicines with some exceptions, e. Sedative and antispasmodic.

Many patients will also be under the care of a palliative care physician. The goals of administering medicines via a syringe driver therefore need to be discussed with the patient and family and any concerns addressed.

The five combinations identified by the Delphi study were those mainly associated with the management of difficult or recalcitrant symptoms. May cause drowsiness and anticholinergic side-effects. It was unclear from the survey which area of practice the data were collected.

Information for healthcare professionals. They allow continuous subcutaneous administration of medicines to enable effective symptom control when medicines given by other routes are inappropriate or no longer effective. One week before disseminating each questionnaire, all the experts received a pre-notification personalised email sent by the researcher. They provide continuous subcutaneous administration of medicines to enable effective symptom control when medicines given by other routes are inappropriate or no longer effective. This information is not intended as a substitute for medical advice and should not be exclusively relied on to manage or diagnose a medical condition.

Care of the syringe driver once in use The safety aspects of the syringe driver What to do and where to get advice if the syringe driver is not working properly, or symptoms are not controlled, e. Syringe drivers can be used either short-term or long-term, pci ven 1180 driver for patients who are ambulatory and those who are confined to bed. Syringe drivers can be placed into a carry bag or pouch when a patient is mobile or be tucked under a pillow if the patient is bed-bound.

Information LinksDrugs used in the syringe driver

How representative are members of expert panels? Consent for publication Not applicable. The salts of monovalent cations, such as sodium and potassium, are generally more soluble than those of divalent cations, such as calcium and magnesium.

Drugs used in the syringe driver

Used for confusion with evidence of hallucinations. You may find the End of Life Care article more useful, or one of our other health articles. Diamorphine, haloperidol, metoclopramide These might be given in combination to manage pain in a patient with bowel obstruction and vomiting.

What is a syringe driver

Standardization of infusion solutions to reduce the risk of incompatibility. Some incompatibilities are eminently predictable from simple chemical knowledge, but most compatibilities and incompatibilities are not so easily predicted.

To mix or not to mix compatibilities of parenteral drug solutionsWhat is a syringe driver