Medications capable of causing Muscle Pain and Discomfort

Inflammatory
Myopathy

Rhabdomyolysis
± Chronic myopathy

Painful myopathy
± Rhabdomyolysis

Myalgia
± Myopathy

Cramps

Definite
Hydralazine
Penicillamine
Procainamide
L-tryptophan
  (impurity)

Possible
Cimetidine
Interferon-a
Ipecac
Lansoprazole
Leuprolide
Levodopa
Penicillin
Phenytoin
Propylthiouracil
Sulfonamide

Alcohol
e-Amino Caproic Acid
Amphetamines
Cocaine
Cyclosporine
Hypokalemia
Isoniazid
Lipid lowering agents
  Fibrates
    Bezafibrate
    Clofibrate
    Gemfibrozil
  Statins
    Lovastatin
    Simvastatin
    Pravastatin
    Fluvastatin
    Atorvastatin
    Cervistatin
    Red yeast rice
Lithium
Mibefradil
Propofol
Zidovudine

Colchicine
Emetine
Germanium
Hypervitaminosis E
Taxenes
Zidovudine

All-Trans-Retinoic Acid
Azathioprine
Bryostatin 1
Captopril
Ciguatoxin
Corticosteroids Withdrawal
Cytotoxics
Danazol
Enlapril
Gemcitabine
Gold
Interferon a-2a
Interferon a-2b
Isotretinoin
Ketorolac
Labetalol
Methotrexate
Metolazone
Mycophenolate mofetil
Paclitaxel
Retinoids
Rifampin
Spanish toxic oil
Suxamethonium
  (Succinylcholine)
Vinca alkaloids
Zimeldine

Albuterol
Anti-Cholinesterase
Bergamot (bergapten)
Caffeine
Clofibrate
Cyclosporine
Diuretics
Labetalol
Lithium
Nifedipine
Terbutaline
Tetanus
Theophylline
Vitamin A