Quetiapine Fumarate (kwe tie’ ah peen) Seroquel, Seroquel XRDNC PREGNANCY CATEGORY C Drug Classes Antipsychotic Dibenzothiazepine Therapeutic Actions Mechanism of action not fully understood: Blocks dopamine and serotonin receptors in…
Pyridostigmine Bromide (peer id oh stig’ meen) Mestinon, Regonol PREGNANCY CATEGORY C Drug Classes Antidote Antimyasthenic Cholinesterase inhibitor Therapeutic Actions Increases the concentration of acetylcholine at the sites of cholinergic…
Pyrazinamide (peer a zin’ a myde) PREGNANCY CATEGORY C Drug Class Antituberculotic Therapeutic Actions Bacteriostatic or bacteriocidal against Mycobacterium tuberculosis; mechanism of action is unknown. Indications Initial treatment of active…
Pyrantel Pamoate (pi ran’ tel) Combantrin (CAN), Panix, Pin-Rid, Pin-X, Reese’s Pinworm PREGNANCY CATEGORY C Drug Class Anthelmintic Therapeutic Actions A depolarizing neuromuscular blocking agent that causes spastic paralysis of…
Pseudoephedrine (soo dow e fed’ rin) Pseudoephedrine Hydrochloride (D-Isoephedrine Hydrochloride) Congest Aid, Efidac/24DNC, Eltor (CAN), Genaphed, Sudafed, Unifed Pseudoephedrine Sulfate ElixSure Children’s Congestion PREGNANCY CATEGORY C Drug Classes Nasal decongestant…
Protriptyline Hydrochloride (proe trip’ ti leen) Vivactil PREGNANCY CATEGORY C Drug Class TCA (secondary amine) Therapeutic Actions Mechanism of action unknown; the TCAs are structurally related to the phenothiazine antipsychotic…
Prothrombin Complex Concentrate (Human) (pro throm’ ben) Kcentra, Octaplex PREGNANCY CATEGORY C Drug Class Vitamin K anticoagulant reversal agent Therapeutic Actions Pooled concentrate containing vitamin K–dependent clotting factors II, VII,…
Protamine Sulfate (proe’ ta meen) PREGNANCY CATEGORY C Drug Class Heparin antagonist Therapeutic Actions Strongly basic proteins found in salmon sperm; protamines form stable salts with heparin, which results in…
