MOOD STABILIZING DRUGS
INDICATIONS
Mnemonic: “Bi-MAN”
Bi – Bipolar disorder
MAN – Acute mania
MECHANISM OF ACTION
Lithium – “Li BALANCE”
👉 Balances brain chemicals
* Serotonin
* Norepinephrine
* Acetylcholine
* Dopamine
🟢 Gold standard for bipolar disorder
⚠️ Requires close blood level monitoring
increase GABA level
Valproic Acid and Topiramate
stabilize mood through KINDLING PROCESS (snowball like effect that raises the level of threshold to minor manic episodes, thus, preventing full blown mania)
Valproic and Carbamazepine
the gold standard for the treatment of bipolar disorder
Lithium
Therapeutic serum level
0.6-1.2 mEq/L
Mild to moderate toxic reactions
1.5-2 mEq/L
Moderate to severe toxic rxn
2-3 mEq/L
LITHIUM TOXICITY
Mnemonic: “D-V DMC”
* D – Diarrhea (severe)
* V – Vomiting
* D – Drowsiness
* M – Muscle weakness
* C – Coordination loss → Coma
death if serum level is >3 mEq/L
LITHIUM SIDE EFFECTS
Mnemonic: “LITHIUM MAKES YOU FAT & THIRSTY”
* L – Lethargy
* I – Increased thirst (polydipsia)
* T – Tremor (fine hand)
* H – Heavy fatigue
* I – Increased urination (polyuria)
* U – Upset stomach (nausea, diarrhea, anorexia)
* M – Metallic taste
➕ Weight gain
CARBAMAZEPINE & VALPROIC ACID
Extra Effects of Carbamazepine
RASH + Orthostatic hypotension
Extra Effects of Valproic Acid
Weight gain, alopecia, tremor
TOPIRAMATE SIDE EFFECTS
MANAGEMENT
Mnemonic: “LEVEL–MEAL–NO DRIVE”
Toxic Effects to watch out for: FOR VALPROIC ACID
“LIVER–BABY–PANCREAS”
Hepatic failure → LFTs before & during therapy
Birth defects → Neural tube defects (spina bifida)
Pancreatitis
Toxic Effects to watch out for:
CARBAMAZEPINE
“NO BLOOD”
Toxic Effects to watch out for:
LAMOTRIGINE (Lamictal)
“BAD SKIN” ⚠️
* Stevens-Johnson Syndrome
* Toxic epidermal necrolysis
* Higher risk in children <16