Drugs Flashcards
What’s enoxaparin?
LMWH
Anticoagulant used to prevent DVT and PE
40mg prophylactic dose
Always given at 6pm
What is lorazepam used for?
Lung cancer, breathlessness and agitation
What’s metoclopramide?
Anti-emetic
Pro-kinetic increases peristalsis
Avoid in complete obstruction risk of perforation
How do you calculate the PRN dose?
Total regular dose divided by 6
What’s simple linctus used for?
Cough
What’s zopiclone used for?
Sleeping pill
What are the step 1, 2 and 3 analgesics?
Step 1- Non-opioids (paracetamol)
Step 2- Weak opioids (codeine/tramadol)
Step 3- Strong opioids (morphine/fentanyl patches)
What are the symptoms for being opioid toxic?
Drowsy Confused Hallucinating Pinpoint pupils Myoclonic jerks Eventual respiratory depression
What are NSAIDs used for?
Inflammation
Raised ICP
Bony pain
What are the side effects of NSAIDs?
Impaired renal function
Bleeding
Ulcers
What must be prescribed alongside a NSAID?
Prophylaxis PPI (Lansoprazole)
What PRN is used when a patient is on step 3 analgesics?
Oramorph/sevredol
What must be prescribed alongside codeine?
Laxative
SENNA- stimulating
Sodium docusate- softener + stimulant
What are immediate release morphines?
Oramorph (liquid)
Sevredol (tablet)
Onset 30 mins lasts 4 hrs
What’s a modified release morphine?
Zomorph
Onset 4 hrs lasts 12hrs
What are the side-effects of opioids?
Nausea + vomiting (haloperidol/metochlopramide for delayed gastric emptying) Unsteadiness Drowsiness Constipation Dry mouth (oral balance gel) Urinary retention Hallucinations Sweating Myoclonus Rash
When are alternative stronger opioids used?
Patients are intolerant of morphine
Opioid responsive pain that doesn’t get relief from morphine
Switching can be associated with reduction in side effects and improved pain relief
What are the alternative opioids used?
Oxycodone
Immediate release- OxyNorm (capsules and liquid injection)
Modified release- Oxycontin tablets
Fentanyl
Transdermal patch lasts 72 hrs
16-24 hrs to reach peak plasma levels
Increased body temp will increase drug delivery
What drugs are used for subcutaneous pain relief?
Diamorphine (x3 stringer than oral morphine)
Morphine
Oxycodone
May be a PRN or via a CSCI using a syringe driver and may be used in conjunction with other medication in the same syringe
What are co-analgesics used?
Corticosteroids- Dexamethasone
Anti-depressants- Amitriptyline (used for nerve pain)
Anti-convulsants- Gabapentin (younger patients, interrupts nervous pathway
Anti-spasmodics- Hyoscine Butyl bromide (Buscopan, good sub-cut not orally)
Muscle relaxants- benzodiazepines (lorazepam)
Bisphosphonates- Pamidronate (bony pain)
What is used for bone pain?
Widespread pain- bisphosphonates
Localised pain- radiotherapy
Multiple metastases- radio nuclides
What is used for neuropathic pain?
Drugs- corticosteroids/anticonvulsant
Nerve block- intercostal (local)/epidural (regional)
Which anticipatory medications are used?
Morphine surface injection (uncontrolled pain)
Haloperidol injection (anti-emetic, agitation)
Hyoscine N Butylbromide injection (buscopan) (secretions)
Midazolam injection- (breathlessness, anxiety)