Advantages of doxycycline over other tetracyclines

• High potency
• Completely absorbed from the intestine with no interference by food
• Long plasma half life (T 1/2) of 18 to 24 hours
• Least effect on the normal flora of the intestine
• Less propensity to cause diarrhoea

Theophylline: Drug interactions

Certain drugs inhibit theophylline metabolism, thus increasing blood levels and cause toxicity
Ciprofloxacin
Cimetidine
Erythromycin
Allopurinol
Oral contraceptives

Some others increase theophylline metabolism, decreasing blood levels
Phenobarbitone
Phenytoin
Rifampicin

Smoking and consumption of charcoal boiled meat also increase theophylline metabolism.

Anterior Pituitary Hormones

Mnemonic: FLAGTOP
Follicle Stimulating Hormone
Luteinizing Hormone
ACTH
Growth Hormone
Thyroid Stimulating Hormone
MSH - melanOcyte stimulating hormone
Prolactin

Proteases in the Duodenum

Mnemonic: Eat Tender Chicken Chunks Elegantly
Enterokinase
Trypsin
Chymotrypsin
Carboxypeptidase
Elastase

Drugs Contraindicated In Breast Feeding

Mnemonic: BREAST
Bromocryptin / Benzodiazepines
Radioactive isotopes / Rizatriptan
Ergotamine / Ethosuximide
Amiodarone/Amphetamines
Stimulant Laxatives / Sex hormones
Tetracyclins / Tretinoin

Hormones that Increase Blood Glucose

Mnemonic: STENGG
Somatotropin (growth hormone)
Thyroid hormones (thyroxine and triiodothyronine)
Epinephrine
Norepinephrine
Glucagon
Glucocorticosteroids
Immunoglobulins

Days of appearance of rashes

Mnemonic: Very Sick Patients Must Take Double Exercise
Varicella (chickenpox)- 1st day
Scarlet fever - 2nd day
Pox (smallpox) - 3rd day
Mumps - 4th day
Typhus - 5th day
Dengue - 6th day
Enteric fever (typhoid) - 7th day