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JGR-Muscle Relaxants
| Question | Answer |
|---|---|
| List the muscle relaxant drugs used to treat spasticity (CNS Disturbances: MS, Cerebral Palsy,higher motor neuron syndromes, strokes) | Baclofen (Lioresal®) Dantrolene sodium (Dantrium®) Diazepam (Valium®) – BCF Tizanidine (Zanaflex®) |
| List the muscle relaxant drugs that are for local musculoskeletal spasms (spasmolytic) | Methocarbamol (Robaxin®) - BCF Orphenadrine (Norflex®) Metaxalone (Skelaxin®) Carisoprodol (Soma®) Gabapentin (Neurontin®) & Tiagabine (Gabitril®) Botulinum toxin (type A - Botox®, type b - Myobloc®) Cyclobenzaprine (Flexeril®) – BCF |
| What is the common side effect across all muscle relaxants? | Drowsiness |
| Which spasmolytic drug has a chemical structure and properties (CNS active) similar to tricyclic antidepressants? | Cyclobenzaprine (Flexeril®) – BCF |
| Which spasmolytic drug has anti-muscarinic properties (Anti-slude)? | Cyclobenzaprine (Flexeril®) – BCF |
| Which spasmolytic drug discolors the urine brown? | Methocarbamol (Robaxin ®)– BCF |
| What is the advantage of Methocarbamol (Robaxin®)? | Rapid onset |
| What form does Methocarbamol (Robaxin®) come in? | Tabs and Injection |
| Which anti-spasticity drug is a centrally acting alpha-2 agonists? | Tizanidine (Zanaflex®)- Congener of Clonidine |
| What are the main side effects of Tizanidine (Zanaflex®)? | drowsiness and hypotension |
| Which spasmolytic drug is a cousin of Diphenhydramine (Benedryl®) ? | Orphenadrine (Norflex®) |
| Which two spasmolytic drugs are anticholinergics? | Cyclobenzaprine (Flexiril®) and Orphenadrine (Norflex®) |
| Which spasmolytic drug is sometimes mixed with caffeine? What is the combo med called? | Oprhenadrine (Norflex®) Norgesic Forte® |
| Which spasmolytic drug is known to cause the least drowsiness? | Metaxalone (Skelaxin®) |
| Which spasmolytic drug is metabolized into methrobamate (controlled substance for anxiety)? | Carisoprodol (Soma®) |
| What are the two typical combination drugs of Carisoprodol (Soma®)? | Soma ®+ Aspirin Soma ®+ Codeine + Acetaminophen (Tylenol®) |
| Which anti-spasticity drug is also used for anti-anxiety and stops seizures and works on GABA-A receptor? | Diazepam (Valium®) |
| Which anti-spasticity drug works on GABA-B receptor? | Baclofen (Lioresal®) |
| What is the Anti-spasticity drug specifically indicated for MS? | Baclofen (Lioresal®) |
| What are the main side effects of Baclofen (Lioresal®)? | Abrupt withdrawal=seizures Wide array of central nervous system effects (Nausea, confusion, euphoria, depression) |
| How is Baclofen (Lioresal®) administered? | Tabs Intrathecal Injection |
| What is the only direct acting anti-spasticity drug? | Dantrolene Sodium (Dantrium®) |
| What is the drug of choice for malignant hyperthermia? | Dantolene Sodium (Dantrium®) |
| What are the indications for Botulinum Toxin (Botox®)? | Cervical dystonias Dynamic muscle contractures in CP Blepharospasm |
| What drugs are anti-epileptics used for muscle spasms and neuropathic pain ? | Gabapentin (Neurontin®) & Tiagabine (Gabitril®) |